fix(career): passport review polish — a11y semantics + seen-state guard

CodeRabbit follow-up on #936 (the one Major — overlay outside the click
root — was verified false: the host mounts every screen.html root inside
#plugin-career, ✕-close confirmed working live):

- Tabs: aria-selected/aria-controls + role=tabpanel/aria-labelledby.
- Book overlay: role=dialog + aria-modal + aria-label; focus moves to
  the close button on open and returns to the opener on close.
- seenBadges(): guard non-object JSON so a corrupt stored value cannot
  throw on every passport refresh (covered by a new corruption test).
- Fresh-session suppression test (badge seen → no re-notification).
- Stylelint declaration-empty-line-before nit in .pp-stamp.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

CHANGELOG.md

@@ -7,6 +7,35 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+- **Career passports (backend)** — the badge-journey layer on top of career stars.
+  New career-plugin endpoints: `GET /api/plugins/career/passports` (per-instrument
+  passport walls: genre badges computed on read from `song_stats` × the library's
+  effective genre — Bronze = N genre songs at K★, data-driven in
+  `plugins/career/passports.json`, default 5 songs at 2★ — plus qualifying-song
+  "ticket stubs", the library genre list, and drill status), `POST
+  /passports/commit` (instrument commitment), `POST /passports/open` (open a genre
+  passport), and `POST /drill-state` (intake for the relayed Virtuoso
+  `virtuoso.progress` snapshot, so drill requirements can gate badges
+  server-side). Badges are never stored; the only persisted state (commitments,
+  opened passports, drill snapshot) lives under `CONFIG_DIR/career/` and rides the
+  settings export/import bundle via `settings.server_files`. Instruments are
+  attributed via the existing progression arrangement→instrument mapping;
+  non-graded instruments (bass, drums) render shown-not-judged — repertoire
+  without a pass bar, never a false badge denial.
+- **Career passports (UI)** — the Career screen gains a Passports tab beside
+  Venues: a physical per-instrument passport book (embossed leather cover, 3D
+  page-turn) with a wax-seal commitment ceremony (Stage 0), rubber-stamp badge
+  slam with ink bleed and deterministic per-genre jitter, qualifying songs as
+  collected ticket stubs, and unopened genres as an "Explore next"
+  travel-brochure rack (invitations, never greyed-out slots or completion
+  meters). Badge earns chime + notify immediately; the stamp slam plays when
+  the passport is next opened. Four small synthesized sound effects ship as
+  plugin assets. The career screen also relays the Virtuoso `virtuoso.progress`
+  localStorage snapshot to the drill-state intake on `virtuoso:progress` bus
+  events (debounced, plus a one-time bootstrap), closing the
+  fires-into-a-void seam without touching the virtuoso plugin.
+
 ### Removed
 - **The classic v2 UI shell is gone — v3 is the only UI (R3a).** `static/index.html`, the
   `/v2` route, and the `FEEDBACK_UI` v2/legacy opt-out are deleted; `/` and `/v3` both serve
@@ -27,6 +56,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   engine (`app.js`, `highway.js`, `playSong`, `showScreen`, the capability registry).
 
 ### Fixed
+- **Career passports review polish** — the passport tabs and book overlay carry
+  proper ARIA semantics (`aria-selected`/`aria-controls`/`tabpanel`;
+  `role="dialog"` + `aria-modal` with focus moved to the close button on open
+  and restored on close), and a corrupt stored seen-badges value (e.g. a stray
+  `"null"`) can no longer throw on every passport refresh.
 - **The packaged desktop app could not start (`ModuleNotFoundError: No module named
   'appstate'`).** feedback-desktop's `scripts/bundle-slopsmith.sh` copies a *hardcoded
   list* of core files into the app bundle — `server.py`, `VERSION`, `lib/`, `data/`,

CLAUDE.md

@@ -465,6 +465,40 @@ window.feedBack.diagnostics.contribute('my_plugin', {
 
 Loaded from `static/diagnostics.js` ASAP in `<head>` so the console-wrap is in place before any other script runs. Available on the `window.feedBack.diagnostics` namespace alongside `snapshotConsole()`, `snapshotHardware()`, `snapshotUa()`, `snapshotLocalStorage()`, `snapshotContributions()`. Keep your payload small (< 100 KB) and don't include secrets — bundles are shared with maintainers.
 
+### Detachable panes — pop your panel out into its own window
+
+If your plugin has a floating panel that sits over the player — a mixer, a camera rig, a settings board — you can let the user pop it out into its own OS window and leave it there: while they play, across song switches, on a second monitor, minimized to the tray. Two calls:
+
+```js
+feedBack.panes.register({
+    id: 'camera_director',
+    title: 'Camera Director',
+    icon: '🎥',
+    element: () => panelEl,          // your existing panel, exactly as it is
+});
+feedBack.panes.attachChip(panelEl, 'camera_director');
+```
+
+**The host moves your real element.** Not a copy, not a re-render — the actual DOM node, adopted into the pop-out window, keeping its listeners and its closures. Your panel goes on running *your* code against *your* state. It looks and behaves like what was popped out because it **is** what was popped out. Nothing to mirror, nothing to keep in sync.
+
+The rules below are all things that have already gone wrong. Full contract: **[docs/plugin-panes.md](docs/plugin-panes.md)**.
+
+- **Your code still runs in the main window.** The element is *displayed* elsewhere; its closures, timers and `document` references still belong to the main realm. That is exactly why everything keeps working — and exactly why `document.body.appendChild(myPopover)` lands in the **main window, not the pane**. Anchor tooltips, popovers and menus to your panel, not to `document.body`. Measure with `el.ownerDocument.defaultView`, never a cached `window`.
+
+- **Don't hide your panel yourself when it pops out.** Core hides it and leaves a "bring it back" stub. If you also hide it, you will hide the node that just moved — and blank the pane window.
+
+- **Prefer `hidden` or a class over inline `display` for show/hide.** While popped out, core neutralises *placement* with `.fb-paned` (`position`, `inset`, `width`, `z-index`, `box-shadow`). An inline `display:none` on your panel reasserts itself the moment the pane docks back and the class is removed, so your panel returns invisible.
+
+- **`element` is a function so it can be resolved late.** Return the *live* node. If you rebuild your panel (Camera Director rebuilds on every mode change), re-run `attachChip` — it returns a `detach()`; call it before re-attaching, and again in your teardown.
+
+- **`isConnected` does not mean "docked".** A panel sitting in a pane window is very much connected — just not to *this* document. Test `el.ownerDocument === document`, or take the `onHost(hostId, el)` callback.
+
+- **rAF is throttled while the main window is backgrounded** — and it will be, whenever the user is looking at your pane. Event-driven panels (sliders, buttons) are unaffected. A panel that *animates continuously* may run slowly while it is the only thing on screen.
+
+- **Don't reach for BroadcastChannel, `postMessage`, or a second copy of your state.** There is one realm and one panel. If you find yourself synchronising, you have misunderstood the model.
+
+- **Nothing is required.** No panes API on the host → skip both calls, and your panel behaves exactly as it does today.
+
 ### Keyboard Shortcuts
 
 Plugins can register keyboard shortcuts via the global `window.registerShortcut()` function. Shortcuts appear in the `?` help panel.

docs/plugin-panes.md

@@ -0,0 +1,354 @@
+# Detachable panes (`window.feedBack.panes`)
+
+Pop a panel out of the app into its own OS window, and leave it there: while you
+play, across song switches, on a second monitor, minimized to the system tray.
+
+Panes exist because the player's rail popovers are **exclusive** — opening one
+closes the last. You cannot watch the mixer while riding the camera, and both
+vanish the moment you want to look at the highway.
+
+---
+
+## The whole idea, in one sentence
+
+**We move the real element.**
+
+Not a copy of your panel. Not a re-implementation of it in the pop-out window.
+The actual DOM node. Same-origin windows can adopt each other's nodes, and an
+adopted node keeps its event listeners and its closures — so your panel goes on
+running *your* code, against *your* state, in *your* realm. The app's stylesheets
+are copied into the pane window, so it looks identical too.
+
+What you popped out is what you get. That is the promise, and it is the reason
+there is no `ctx`, no state mirroring, no cross-window RPC and no second copy of
+your UI to keep in step with the first. Those are all solutions to a problem we
+simply do not have.
+
+---
+
+## Adding a pane to your plugin
+
+Two lines.
+
+```js
+// Guard: the panes API is optional. On a host without it, skip both calls and
+// your panel behaves exactly as it does today.
+const panes = window.feedBack && window.feedBack.panes;
+if (panes && typeof panes.register === 'function') {
+    panes.register({
+        id: 'camera_director',
+        title: 'Camera Director',
+        icon: '🎥',
+        element: () => panelEl,      // your existing panel, as it is
+    });
+    panes.attachChip(panelEl, 'camera_director');
+}
+```
+
+`attachChip()` injects **the** standard pop-out chip (`⇱`) — same glyph, same
+place, same behaviour in every plugin. Clicking it moves your panel to whichever
+**host** the router picks — usually a pop-out window, but the dock when a window
+can't be had (a blocked pop-up, or `defaultHost: 'dock'`) — and leaves a
+"⇲ … is popped out" stub in its place. Clicking the stub brings the panel back, to
+exactly the spot it left. Core owns the chip, the hiding and the stub, so you write
+no show/hide logic.
+
+That's it. Your sliders, your presets, your tabs, your CSS, your event handlers,
+your state — all of it comes along, because none of it moved anywhere except into
+a different window's document.
+
+### `element` is a function for a reason
+
+It is resolved at open time, not at registration. Plugins commonly build their
+panel lazily on first use, or rebuild it wholesale when something changes (Camera
+Director rebuilds its panel on every mode change). Asking for it when we need it
+means we always move the live one.
+
+**If you rebuild your panel, re-attach the chip.** Rebuilding takes the chip with
+it. `attachChip()` returns a `detach()`; call it before re-attaching, and again in
+your teardown — otherwise you leave a stub pointing at DOM that no longer exists.
+
+```js
+if (chipDetach) chipDetach();
+chipDetach = panes.attachChip(panel, PANE_ID, { header: toolsEl });
+```
+
+Re-attaching is safe while the pane is popped out: the chip reconciles against the
+pane's real state, so a panel rebuilt mid-pop-out stays correctly stubbed.
+
+### The two things core changes about your element
+
+**1. Placement.** `.fb-paned` is added while the pane is out:
+
+```css
+position: static; inset: auto; margin: 0; width: 100%;
+max-width: none; max-height: none; z-index: auto; box-shadow: none;
+```
+
+Your panel was almost certainly a fixed overlay pinned to a corner of the app
+(`position:fixed; top:72px; right:18px; width:288px`). Alone in its own window,
+every one of those is wrong — it would float 72px down from the top of a 380px
+window, still 288px wide, still casting a shadow over nothing.
+
+Note there is deliberately **no `display` override**: a panel that is
+`display:flex` or `grid` stays that way. Colours, borders, radius, padding, fonts
+and your panel's own internal layout are untouched.
+
+**2. Visibility.** A panel is usually hidden until its launcher is clicked, and a
+pane can be opened from the tray or the rail without that ever happening — so core
+un-hides it, in the two ways a panel is actually hidden:
+
+```js
+el.hidden = false;
+if (el.style.display === 'none') el.style.display = '';
+```
+
+**Both are restored exactly as they were when the pane docks**, along with the
+`.fb-paned` class. A panel that was closed when you opened its pane from the tray
+goes back to being closed; one that was open stays open.
+
+---
+
+## Spec
+
+```js
+feedBack.panes.register({
+    id,                    // required, unique
+    element,               // required — an Element, or a function returning one
+    title,                 // shown in the pane window's title bar, the dock card, the tray
+    icon,                  // one glyph, for the dock/tray/launcher lists
+    width, height,         // the pane window's initial size (it remembers yours after that)
+    defaultHost,           // 'window' (default) or 'dock'
+    onHost,                // optional (hostId | null, el) => void — re-measure/re-anchor
+});
+```
+
+```js
+feedBack.panes.attachChip(el, paneId, { header })   // → detach()
+feedBack.panes.open(id, { host }) / close(id) / detach(id) / dock(id) / focus(id)
+feedBack.panes.isOpen(id) / hostOf(id) / get(id) / list()
+```
+
+`attachChip` puts the chip in the `header` element you pass, else in
+`el.querySelector('[data-pane-header]')` if it finds one, else at the top of `el`.
+An explicit `header` always wins.
+
+---
+
+## Hosts
+
+`detach(id)` puts a pane in the best host available:
+
+| host | | |
+|---|---|---|
+| `window` | 10 | A real OS window. In the desktop app: remembered bounds, always-on-top, system tray. |
+| `dock` | 0 | A card in the in-window stack. **The floor** — always available, so opening a pane can never fail. |
+
+You don't pick; you declare `defaultHost` and the router does the rest.
+
+In the **desktop app** a pane you left popped out comes back popped out on next
+launch. In a **browser** it comes back **docked** — a browser blocks
+`window.open()` without a user gesture, so restoring it would only ever produce a
+"pop-up blocked" toast. The chip pops it out again on your next click.
+
+---
+
+## Best practices
+
+Every item below is something that has already gone wrong, in this codebase, on
+this feature. They are cheap to get right up front and confusing to diagnose later
+— a broken pane usually *looks* perfect.
+
+### 1. Your code still runs in the main window
+
+The element is *displayed* in the pane window, but its closures, its timers and its
+`document` references all still belong to the main realm. **That is precisely why
+everything keeps working** — and it has one sharp consequence:
+
+```js
+// WRONG — lands in the MAIN window, not the pane the user is looking at.
+document.body.appendChild(myTooltip);
+
+// RIGHT — anchored to the panel, so it travels with it.
+panelEl.appendChild(myTooltip);
+```
+
+**And every lookup for something inside your panel.** Once the panel has moved,
+`document.getElementById('my-panel-thing')` returns `null` — so every update it
+guards silently stops happening, precisely while the user is looking at the panel.
+No error. Just a UI that quietly goes dead.
+
+```js
+// WRONG — null once the panel is popped out.
+document.getElementById('my-panel-hint').textContent = msg;
+
+// RIGHT — search FROM the panel; works in either document.
+panelEl.querySelector('#my-panel-hint').textContent = msg;
+```
+
+Elements that live outside your panel (your plugin's *screen*, host chrome) never
+move, and should keep using `document.getElementById`. Audit which is which — in
+the stem mixer, four ids were inside the panel and a dozen were not.
+
+Same for measuring and popovers. `window.innerWidth` is the *main* window's, and a
+dismiss listener on `window` watches a window the user isn't clicking in. Use
+`el.ownerDocument` / `el.ownerDocument.defaultView` when you need the window your
+panel is actually in.
+
+### 2. Don't hide your panel yourself
+
+Core hides it and leaves a "bring it back" stub. If your plugin *also* hides it,
+you are hiding the node that just moved — and the pane window renders nothing.
+(This is not hypothetical: core's own chip did exactly this, and the first
+pop-out shipped blank because of it.)
+
+### 3. Prefer `hidden` or a class for show/hide
+
+Core makes your panel visible while it's hosted — it clears `hidden`, and clears an
+inline `display: none` if that's how you hide — and **restores both on dock**. So
+either style works.
+
+`hidden` is still the better choice: it composes with everything, and it leaves
+your panel's `display` mode (`flex`, `grid`, whatever it is) entirely alone. Core
+deliberately does not override `display` for exactly that reason.
+
+```js
+panel.hidden = true;                  // best
+panel.style.display = 'none';         // works — core saves and restores it
+```
+
+### 4. `element` is a function — return the *live* node
+
+It is resolved when the pane opens, not when you register. Plugins build panels
+lazily, and rebuild them wholesale (Camera Director rebuilds on every mode
+change). If you rebuild yours, **re-attach the chip**:
+
+```js
+if (chipDetach) chipDetach();            // attachChip returns a detach()
+chipDetach = feedBack.panes.attachChip(panel, PANE_ID, { header: toolsEl });
+```
+
+Call `chipDetach()` in your teardown too, or you leave a stub pointing at DOM that
+no longer exists.
+
+### 5. `isConnected` lies about a panel that is a pane
+
+This one has cost more debugging than everything else on this page combined, and
+it lies in **both directions**.
+
+**It says `true` when your panel is not here.** A panel sitting in a pane window is
+`isConnected` — just not to *this* document. Code asking "am I still mounted?" gets
+`true` and then acts on a panel that is somewhere else entirely.
+
+**It says `false` when your panel is perfectly fine.** The host *detaches* the
+element the moment a pop-out starts, before the new window has even loaded. In that
+gap `isConnected` is `false` — and any code that rebuilds on that basis builds a
+**second panel**, while the host is still holding the first.
+
+That second panel is the one your module variables now point at. The one the user
+can *see* is the original, owned by nobody. So:
+
+- its close button closes the *other*, invisible panel — "the X doesn't work"
+- your chip gets re-attached to the impostor — "the pop-out icon vanished"
+
+Two baffling symptoms, one duplicate, and nothing in the stack trace to suggest it.
+
+**Ask the pane system, not the DOM.** It knows where your element is:
+
+```js
+function paneOwnsPanel() {
+    const panes = window.feedBack && window.feedBack.panes;
+    return !!(panes && panes.isOpen && panes.isOpen(MY_PANE_ID));
+}
+
+// "Is my panel gone?" — not "is it in this document?"
+if (panel && (panel.isConnected || paneOwnsPanel())) return panel;   // alive; possibly elsewhere
+```
+
+Every `isConnected` check on a panel that can be a pane needs this. In the stem
+mixer that was `ensureMixerPanel()` (which rebuilt) *and* the MutationObserver's
+fast path (which decided the UI was unmounted and swept on every mutation).
+
+For "which document is it in right now", use `el.ownerDocument === document`, or
+take the optional `onHost(hostId, el)` callback, which fires on both moves.
+
+### 6. If your plugin can be re-injected, it must be able to remove itself
+
+The host may run your script more than once — a screen re-entry, a version change.
+Without a teardown, the second run builds a second panel while the first one is
+still on screen, and every module variable in the new instance points at the new,
+invisible one. The user clicks the panel they can see; nothing happens.
+
+Everything stateful duplicates: observers, timers, listeners. And one thing is
+worse than duplicated — **your pane registration**:
+
+```js
+panes.register({ id, element: () => panel });   // resolved LAZILY, at open time
+```
+
+First registration wins, so a stale one hands the host `panel` from a **dead
+instance**. Popping out then moves a panel nobody owns.
+
+So publish a teardown handle and call it at the top of your script:
+
+```js
+if (window.__myPluginInstance?.destroy) {
+    try { window.__myPluginInstance.destroy(); } catch (e) { /* tear down what we can */ }
+}
+
+window.__myPluginInstance = {
+    destroy() {
+        observer?.disconnect();
+        clearTimeout(myTimer);
+        chipDetach?.();                       // attachChip() returned this
+        panes?.unregister?.(MY_PANE_ID);      // ← the one people forget
+        document.querySelectorAll('#my-panel').forEach((n) => n.remove());
+    },
+};
+```
+
+Belt and braces: when you build your panel, remove any node carrying its id that
+isn't yours. A zombie panel is worse than no panel — it looks alive and does
+nothing.
+
+### 7. Expect rAF to be throttled while your pane has focus
+
+Chromium throttles a **backgrounded** window's `requestAnimationFrame` — and the
+main window is exactly what's backgrounded while the user is looking at your pane.
+Your rAF lives in the main window.
+
+Event-driven panels (sliders, buttons, presets) don't care. A panel that
+*animates continuously* may run slowly precisely when it's the only thing on
+screen. Drive such animation from data you already have, or accept the stutter.
+
+### 8. Don't synchronise anything
+
+No `BroadcastChannel`, no `postMessage`, no second copy of your state, no mirrored
+UI. There is **one** realm and **one** panel. If you find yourself writing sync
+code, you have misunderstood the model — the whole point is that there is nothing
+to sync.
+
+### 9. Nothing here is required
+
+On a host without the panes API, `feedBack.panes` is `undefined`. Skip both calls
+and your panel behaves exactly as it does today. Guard, don't depend:
+
+```js
+const panes = window.feedBack && window.feedBack.panes;
+if (!panes || typeof panes.register !== 'function') return;
+```
+
+---
+
+## Things core guarantees
+
+- **The element goes home exactly where it came from** — same parent, same position
+  among its siblings. Don't move it yourself while it's popped out.
+- **It comes home alive.** Core evacuates the element *before* the pane window's
+  document is destroyed. (Get this wrong — dock after the window dies — and the
+  node returns looking perfect with every listener in its subtree silently gone.
+  That bug is why this section exists.)
+- **A pane window the user closes, or that crashes, is reaped** and the element
+  docked back. Your panel is never stranded in a dead document.
+- **The app's stylesheets are copied into the pane window**, so your panel looks
+  identical — including your plugin's own `styles` sheet.

plugins/career/assets/career.css

@@ -64,3 +64,348 @@
 .career-star-row .song .artist { color: #9ca3af; }
 .career-star-row .hint { color: #6b7280; white-space: nowrap; }
 .career-star-row .hint.close { color: #22d3ee; }
+
+/* ── Passports (badge journey) ─────────────────────────────────────────── */
+
+.career-tabs {
+    display: flex;
+    gap: 0.25rem;
+    margin-bottom: 1rem;
+    border-bottom: 1px solid rgba(55, 65, 81, 0.6);
+}
+.career-tab {
+    padding: 0.375rem 0.875rem;
+    font-size: 0.85rem;
+    color: #9ca3af;
+    border-bottom: 2px solid transparent;
+    margin-bottom: -1px;
+}
+.career-tab:hover { color: #e5e7eb; }
+.career-tab.active { color: #fff; border-bottom-color: #06b6d4; }
+
+.pp-instruments { display: flex; flex-wrap: wrap; gap: 0.5rem; }
+.pp-inst {
+    padding: 0.3rem 0.8rem;
+    border-radius: 999px;
+    font-size: 0.8rem;
+    color: #d1d5db;
+    background-color: rgba(31, 41, 55, 0.7);
+    border: 1px solid transparent;
+}
+.pp-inst:hover { background-color: rgba(55, 65, 81, 0.9); }
+.pp-inst.active { border-color: #06b6d4; color: #fff; }
+.pp-inst.uncommitted { color: #6b7280; border-style: dashed; border-color: rgba(107, 114, 128, 0.5); }
+.pp-inst-badges { color: #fbbf24; font-size: 0.7rem; }
+.pp-inst-plus { color: #6b7280; }
+
+/* Leather covers — per-instrument hue, embossed with layered shadows and a
+   subtle grain gradient (no image assets). */
+.pp-leather-guitar { background: linear-gradient(160deg, #5c2321, #401412); }
+.pp-leather-bass { background: linear-gradient(160deg, #1f3252, #131f36); }
+.pp-leather-keys { background: linear-gradient(160deg, #1e4034, #122a21); }
+.pp-leather-drums { background: linear-gradient(160deg, #3f3f46, #26262b); }
+
+.pp-shelf { display: flex; flex-wrap: wrap; gap: 1rem; align-items: flex-end; }
+.pp-cover, .pp-commit-cover {
+    position: relative;
+    width: 9.5rem;
+    height: 13rem;
+    border-radius: 0.5rem 0.75rem 0.75rem 0.5rem;
+    box-shadow:
+        inset 0 0 0 1px rgba(255, 255, 255, 0.06),
+        inset 0.5rem 0 0.75rem -0.5rem rgba(0, 0, 0, 0.8),
+        0 6px 16px rgba(0, 0, 0, 0.45);
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    justify-content: center;
+    gap: 0.35rem;
+    padding: 0.75rem;
+    text-align: center;
+}
+.pp-cover { transition: transform 0.15s ease, box-shadow 0.15s ease; }
+.pp-cover:hover { transform: translateY(-4px) !important; box-shadow: 0 10px 22px rgba(0, 0, 0, 0.55); }
+.pp-cover-title {
+    font-weight: 700;
+    font-size: 0.85rem;
+    letter-spacing: 0.14em;
+    color: rgba(240, 226, 195, 0.92);
+    text-shadow: 0 1px 0 rgba(0, 0, 0, 0.7), 0 -1px 0 rgba(255, 255, 255, 0.12);
+    overflow-wrap: anywhere;
+}
+.pp-cover-inst {
+    font-size: 0.6rem;
+    letter-spacing: 0.2em;
+    text-transform: uppercase;
+    color: rgba(240, 226, 195, 0.55);
+}
+.pp-cover-sub {
+    position: absolute;
+    bottom: 0.6rem;
+    font-size: 0.6rem;
+    color: rgba(240, 226, 195, 0.5);
+}
+
+.pp-commit-card {
+    display: flex;
+    gap: 1.25rem;
+    align-items: center;
+    padding: 1rem;
+    border-radius: 0.75rem;
+    border: 1px solid rgba(55, 65, 81, 0.6);
+    background-color: rgba(31, 41, 55, 0.35);
+}
+.pp-commit-card .pp-commit-cover { width: 7rem; height: 9.5rem; flex: none; }
+
+.pp-rack { display: grid; gap: 0.75rem; grid-template-columns: repeat(auto-fill, minmax(10.5rem, 1fr)); }
+.pp-brochure {
+    display: flex;
+    flex-direction: column;
+    align-items: flex-start;
+    gap: 0.15rem;
+    padding: 0.75rem 0.875rem;
+    border-radius: 0.5rem;
+    text-align: left;
+    background: linear-gradient(165deg, rgba(45, 55, 72, 0.55), rgba(31, 41, 55, 0.55));
+    border: 1px solid rgba(75, 85, 99, 0.5);
+    transition: transform 0.15s ease, border-color 0.15s ease;
+}
+.pp-brochure:hover { transform: translateY(-2px); border-color: #06b6d4; }
+.pp-brochure-art { font-size: 1.4rem; }
+.pp-brochure-name { color: #e5e7eb; font-size: 0.85rem; font-weight: 600; }
+.pp-brochure-sub { color: #6b7280; font-size: 0.65rem; }
+
+/* The open book */
+.pp-overlay { position: fixed; inset: 0; z-index: 60; }
+.pp-book-wrap {
+    position: absolute;
+    inset: 0;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    background: rgba(3, 7, 18, 0.72);
+    backdrop-filter: blur(2px);
+}
+.pp-book {
+    position: relative;
+    width: min(92vw, 720px);
+    height: min(72vh, 470px);
+    perspective: 1800px;
+}
+.pp-page {
+    position: absolute;
+    top: 0;
+    bottom: 0;
+    width: 50%;
+    background:
+        linear-gradient(105deg, rgba(0, 0, 0, 0.08), transparent 12%),
+        #efe6d0;
+    color: #3f3428;
+    padding: 1.1rem 1.2rem;
+    overflow: hidden;
+    display: flex;
+    flex-direction: column;
+    gap: 0.75rem;
+}
+.pp-page-left { left: 0; border-radius: 0.6rem 0 0 0.6rem; opacity: 0; transition: opacity 0.35s ease 0.3s; align-items: center; }
+.pp-page-right { right: 0; border-radius: 0 0.6rem 0.6rem 0; box-shadow: inset 0.4rem 0 0.6rem -0.4rem rgba(0, 0, 0, 0.35); }
+.pp-book.open .pp-page-left { opacity: 1; }
+.pp-book-cover {
+    position: absolute;
+    top: 0;
+    bottom: 0;
+    left: 50%;
+    width: 50%;
+    border-radius: 0 0.6rem 0.6rem 0;
+    transform-origin: left center;
+    transform: rotateY(0deg);
+    backface-visibility: hidden;
+    transition: transform 0.8s cubic-bezier(0.4, 0.1, 0.2, 1);
+    z-index: 5;
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    justify-content: center;
+    gap: 0.35rem;
+    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06), 0 6px 20px rgba(0, 0, 0, 0.5);
+}
+.pp-book.open .pp-book-cover { transform: rotateY(-180deg); }
+.pp-book-close {
+    position: absolute;
+    top: -0.75rem;
+    right: -0.75rem;
+    z-index: 8;
+    width: 2rem;
+    height: 2rem;
+    border-radius: 999px;
+    background: rgba(17, 24, 39, 0.95);
+    color: #d1d5db;
+    border: 1px solid rgba(107, 114, 128, 0.5);
+}
+.pp-book-close:hover { color: #fff; border-color: #06b6d4; }
+.pp-page-head {
+    font-size: 0.7rem;
+    letter-spacing: 0.18em;
+    text-transform: uppercase;
+    color: #8a7a5e;
+    border-bottom: 1px solid rgba(138, 122, 94, 0.35);
+    padding-bottom: 0.4rem;
+    width: 100%;
+    text-align: center;
+}
+
+/* The rubber stamp */
+.pp-stamp {
+    --pp-rot: 0deg;
+
+    position: relative;
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    justify-content: center;
+    gap: 0.1rem;
+    width: 9rem;
+    height: 9rem;
+    border-radius: 999px;
+    border: 3px solid #9a5b16;
+    box-shadow: inset 0 0 0 3px #efe6d0, inset 0 0 0 4px #9a5b16;
+    color: #9a5b16;
+    transform: rotate(var(--pp-rot));
+    margin-top: 1.25rem;
+    text-align: center;
+    padding: 0.75rem;
+    opacity: 0.92;
+}
+.pp-stamp-genre { font-size: 0.72rem; font-weight: 800; letter-spacing: 0.16em; overflow-wrap: anywhere; }
+.pp-stamp-tier { font-size: 0.58rem; letter-spacing: 0.3em; }
+.pp-stamp-ghost {
+    border-style: dashed;
+    box-shadow: none;
+    border-color: #b3a68b;
+    color: #b3a68b;
+    opacity: 0.8;
+}
+.pp-stamp-hidden { opacity: 0; }
+.pp-stamp-mini {
+    position: absolute;
+    top: 0.5rem;
+    right: 0.5rem;
+    width: auto;
+    height: auto;
+    border-width: 2px;
+    box-shadow: none;
+    border-radius: 999px;
+    font-size: 0.5rem;
+    font-weight: 800;
+    letter-spacing: 0.2em;
+    color: #d9a253;
+    border-color: #d9a253;
+    padding: 0.2rem 0.4rem;
+    margin: 0;
+    display: inline-block;
+    transform: rotate(var(--pp-rot));
+    opacity: 0.95;
+}
+.pp-stamp-page::after {
+    content: '';
+    position: absolute;
+    inset: -10%;
+    border-radius: 999px;
+    background: radial-gradient(closest-side, rgba(154, 91, 22, 0.25), transparent 72%);
+    filter: blur(5px);
+    opacity: 0;
+    pointer-events: none;
+}
+.pp-slam { animation: pp-slam 0.5s cubic-bezier(0.2, 0.8, 0.3, 1) forwards; }
+.pp-slam::after { animation: pp-ink 0.45s ease-out 0.12s forwards; }
+@keyframes pp-slam {
+    0% { transform: rotate(calc(var(--pp-rot) - 15deg)) scale(2.5); opacity: 0; }
+    55% { transform: rotate(var(--pp-rot)) scale(0.92); opacity: 1; }
+    75% { transform: rotate(var(--pp-rot)) scale(1.05); }
+    100% { transform: rotate(var(--pp-rot)) scale(1); opacity: 0.92; }
+}
+@keyframes pp-ink {
+    from { opacity: 0; transform: scale(0.6); }
+    to { opacity: 1; transform: scale(1); }
+}
+.pp-shake { animation: pp-shake 0.4s ease-out 0.28s; }
+@keyframes pp-shake {
+    0%, 100% { transform: translate(0, 0) rotate(0); }
+    25% { transform: translate(2px, 1px) rotate(0.3deg); }
+    50% { transform: translate(-2px, 2px) rotate(-0.25deg); }
+    75% { transform: translate(1px, -1px) rotate(0.15deg); }
+}
+
+.pp-invite, .pp-snj, .pp-gold-note { font-size: 0.75rem; text-align: center; }
+.pp-invite { color: #6d5d40; }
+.pp-snj { color: #6d5d40; margin-top: 2rem; font-style: italic; max-width: 15rem; }
+.pp-gold-note { color: #a8946d; font-size: 0.62rem; margin-top: 0.5rem; }
+.pp-drills { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.7rem; color: #6d5d40; }
+.pp-drill.cleared { color: #4d7c0f; }
+
+/* Ticket stubs */
+.pp-stubs { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 0.5rem; padding-right: 0.25rem; }
+.pp-stub {
+    background: #f7f1e3;
+    border: 1px solid #d8cbaa;
+    border-left: 2px dashed #b6a98c;
+    border-radius: 0.25rem 0.4rem 0.4rem 0.25rem;
+    padding: 0.4rem 0.6rem 0.4rem 0.75rem;
+    display: grid;
+    grid-template-columns: auto 1fr;
+    column-gap: 0.6rem;
+    align-items: baseline;
+    box-shadow: 0 1px 2px rgba(63, 52, 40, 0.15);
+}
+.pp-stub-stars { color: #b8860b; font-size: 0.7rem; letter-spacing: 0.08em; grid-row: span 2; }
+.pp-stub-title { font-size: 0.78rem; font-weight: 600; color: #3f3428; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.pp-stub-artist { grid-column: 2; font-size: 0.65rem; color: #6d5d40; }
+.pp-stub-meta { grid-column: 2; font-size: 0.6rem; color: #8a7a5e; }
+.pp-stub-empty { font-size: 0.72rem; color: #8a7a5e; font-style: italic; padding: 0.75rem 0.25rem; }
+
+/* Wax-seal commitment ceremony */
+.pp-ceremony { width: 11rem; height: 15rem; }
+.pp-wax {
+    position: absolute;
+    bottom: 1.4rem;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    width: 3.4rem;
+    height: 3.4rem;
+    border-radius: 999px;
+    background:
+        radial-gradient(circle at 32% 30%, #d24545 0%, #a41f1f 42%, #7c1414 100%);
+    box-shadow:
+        inset 0 0 0 4px rgba(124, 20, 20, 0.9),
+        inset 0 2px 4px rgba(255, 255, 255, 0.25),
+        0 3px 8px rgba(0, 0, 0, 0.55);
+    color: rgba(255, 235, 235, 0.9);
+    font-weight: 700;
+    font-size: 1.15rem;
+    animation: pp-seal-drop 0.9s cubic-bezier(0.25, 0.9, 0.3, 1.15) 0.35s backwards;
+}
+@keyframes pp-seal-drop {
+    0% { transform: translateY(-120px) scale(2.1); opacity: 0; }
+    60% { transform: translateY(0) scale(0.9); opacity: 1; }
+    80% { transform: translateY(0) scale(1.05); }
+    100% { transform: translateY(0) scale(1); }
+}
+
+/* Small screens: the spread stacks; the flip cover would straddle both
+   pages, so the book simply opens. */
+@media (max-width: 640px) {
+    .pp-book { height: min(80vh, 620px); }
+    .pp-page { position: static; width: 100%; height: 50%; border-radius: 0; }
+    .pp-page-left { border-radius: 0.6rem 0.6rem 0 0; opacity: 1; }
+    .pp-page-right { border-radius: 0 0 0.6rem 0.6rem; }
+    .pp-book-cover { display: none; }
+    .pp-book { display: flex; flex-direction: column; }
+}
+
+@media (prefers-reduced-motion: reduce) {
+    .pp-book-cover, .pp-page-left, .pp-cover { transition: none; }
+    .pp-slam, .pp-slam::after, .pp-shake, .pp-wax { animation: none; }
+    .pp-slam, .pp-stamp-page::after { opacity: 1; }
+    .pp-stamp-hidden { opacity: 0.92; }
+}

plugins/career/passports.json

@@ -0,0 +1,17 @@
+{
+    "badge_requirement": {
+        "songs": 5,
+        "min_stars": 2
+    },
+    "genres": {},
+    "graded_instruments": [
+        "guitar",
+        "keys"
+    ],
+    "instruments": [
+        "guitar",
+        "bass",
+        "keys",
+        "drums"
+    ]
+}

plugins/career/plugin.json

@@ -1,12 +1,18 @@
 {
     "id": "career",
     "name": "Career",
-    "version": "0.1.0",
+    "version": "0.2.0",
     "bundled": true,
     "private": false,
-    "description": "Career mode — gig your way from a local bar to the arena. Earn stars per song; the crowd reacts to how you play.",
+    "description": "Career mode — gig your way from a local bar to the arena, and build a passport wall of genre badges per instrument. Earn stars per song; the crowd reacts to how you play.",
     "screen": "screen.html",
     "script": "screen.js",
     "styles": "assets/career.css",
+    "settings": {
+        "html": "settings.html",
+        "server_files": [
+            "career/"
+        ]
+    },
     "routes": "routes.py"
 }

plugins/career/routes.py

@@ -5,18 +5,27 @@ accuracy across arrangements crosses 0/1/2/3 of the thresholds in
 ``venues.json`` (data-driven so tuning never touches code). Cumulative
 stars unlock venue tiers (bar → club → arena).
 
-Venue packs (crowd-loop videos rendered offline in UE) are heavyweight and
-never ship with the app: ``venues.json`` points at a release asset per
-venue, downloaded on demand into ``CONFIG_DIR/plugin_uploads/career/venues/
-<id>/`` on a background thread (constitution: nothing heavy inline on the
-request path), sha256-verified, then served back with the same
-FileResponse/no-cache recipe as highway_3d's custom-video route.
+Venue packs (crowd-loop videos rendered offline in UE) may be bundled with
+the plugin under ``venue-packs/<id>/`` or downloaded on demand into
+``CONFIG_DIR/plugin_uploads/career/venues/<id>/``. Downloaded packs override
+bundled packs so release assets can replace a built-in starter venue.
+
+Passports (badge journey per instrument × genre — the identity layer on top
+of the same stars): badges are COMPUTED on read from ``song_stats`` × the
+library's effective genre, never stored. The only persisted career state is
+what cannot be derived — instrument commitment, opened passports, and the
+relayed virtuoso drill snapshot — as JSON under ``CONFIG_DIR/career/``
+(exported via ``settings.server_files``).
 
 Endpoints (all under /api/plugins/career/):
   GET    /state                       stars + per-venue unlock/install/download status
   POST   /packs/{venue_id}/download   start background pack download (409 if running)
   DELETE /packs/{venue_id}            remove an installed pack
   GET    /venues/{venue_id}/{filename} serve pack files (manifest.json, loops, stingers)
+  GET    /passports                   passport walls: badges, stubs, genres, drill status
+  POST   /passports/commit            commit to an instrument (the wax seal, Stage 0)
+  POST   /passports/open              open a genre passport for an instrument
+  POST   /drill-state                 relayed virtuoso.progress snapshot (drill intake)
 """
 
 import hashlib
@@ -28,11 +37,14 @@ import tempfile
 import threading
 import urllib.request
 import zipfile
+from datetime import datetime, timezone
 from pathlib import Path
 
-from fastapi import HTTPException
+from fastapi import Body, HTTPException
 from fastapi.responses import FileResponse
 
+from progression import instrument_for_arrangement
+
 PLUGIN_ID = "career"
 VENUE_ID_RE = re.compile(r"^[a-z0-9_-]{1,40}$")
 PACK_FILENAME_RE = re.compile(r"^[a-z0-9_-]{1,64}\.(mp4|webm|mp3|json)$")
@@ -42,6 +54,7 @@ DOWNLOAD_CHUNK = 1024 * 256
 _lock = threading.Lock()
 _state = {
     "content": None,        # parsed venues.json
+    "plugin_dir": None,     # plugin root; bundled packs live below it
     "venues_dir": None,     # CONFIG_DIR/plugin_uploads/career/venues
     "meta_db": None,        # MetadataDB (song_stats reads are lock-free / WAL)
     "log": logging.getLogger("feedBack.plugin.career"),
@@ -60,8 +73,27 @@ def _venue_dir(venue_id) -> Path:
     return _state["venues_dir"] / venue_id
 
 
+def _bundled_venue_dir(venue_id) -> Path:
+    return _state["plugin_dir"] / "venue-packs" / venue_id
+
+
+def _pack_dir(venue_id):
+    """Runtime pack location: downloaded override first, bundled fallback."""
+    local = _venue_dir(venue_id)
+    if (local / "manifest.json").is_file():
+        return local
+    bundled = _bundled_venue_dir(venue_id)
+    if (bundled / "manifest.json").is_file():
+        return bundled
+    return local
+
+
 def _installed(venue_id):
-    return (_venue_dir(venue_id) / "manifest.json").is_file()
+    return (_pack_dir(venue_id) / "manifest.json").is_file()
+
+
+def _bundled(venue_id):
+    return (_bundled_venue_dir(venue_id) / "manifest.json").is_file()
 
 
 def _stars():
@@ -100,6 +132,235 @@ def _stars():
     return sum(per_song.values()), per_song, detail
 
 
+# ── Passports ─────────────────────────────────────────────────────────────────
+
+GENRE_MAX_LEN = 64
+DRILL_SNAPSHOT_MAX_BYTES = 256 * 1024
+
+
+def _now_iso():
+    return datetime.now(timezone.utc).isoformat(timespec="seconds")
+
+
+def _genre_display(genre):
+    return " ".join(str(genre or "").strip().split())
+
+
+def _genre_key(genre):
+    return _genre_display(genre).lower()
+
+
+def _state_file() -> Path:
+    return _state["state_dir"] / "passports-state.json"
+
+
+def _drill_file() -> Path:
+    return _state["state_dir"] / "drill-state.json"
+
+
+def _load_json(path: Path, default):
+    try:
+        return json.loads(path.read_text(encoding="utf-8"))
+    except (OSError, ValueError):
+        return default
+
+
+def _save_json(path: Path, obj):
+    tmp = path.with_name(path.name + ".tmp")
+    tmp.write_text(json.dumps(obj, indent=2), encoding="utf-8")
+    tmp.replace(path)
+
+
+def _career_state():
+    st = _load_json(_state_file(), {})
+    if not isinstance(st, dict):
+        st = {}
+    if not isinstance(st.get("instruments"), dict):
+        st["instruments"] = {}
+    if not isinstance(st.get("passports"), dict):
+        st["passports"] = {}
+    return st
+
+
+def _genre_expr(db):
+    # Reuse the host's override-aware effective-genre SQL (Fix-metadata popup
+    # overrides); plain `genre` on stand-ins that don't implement it.
+    fn = getattr(db, "_effective_genre_expr", None)
+    return fn() if callable(fn) else "genre"
+
+
+def _instrument_of(arrangements, arrangement):
+    """Progression's arrangement→instrument mapping, via the song_stats
+    arrangement index into the song's arrangements JSON."""
+    entry = None
+    try:
+        idx = int(arrangement)
+        if isinstance(arrangements, list) and 0 <= idx < len(arrangements):
+            entry = arrangements[idx]
+    except (TypeError, ValueError):
+        entry = None
+    return instrument_for_arrangement(entry)
+
+
+def _played_by_instrument_genre():
+    """(instrument, genre_key) → {filename: stub dict}. Best accuracy per
+    (instrument, song); the JOIN keeps the same dead-song filter as _stars()."""
+    db = _state["meta_db"]
+    if db is None:
+        return {}
+    thresholds = _state["content"]["star_accuracy_thresholds"]
+    rows = db.conn.execute(
+        "SELECT s.filename, s.arrangement, s.best_accuracy, s.last_played_at, "
+        "       songs.title, songs.artist, songs.arrangements, "
+        f"      {_genre_expr(db)} "
+        "FROM song_stats s JOIN songs ON songs.filename = s.filename"
+    ).fetchall()
+    arrs_cache = {}
+    out = {}
+    for filename, arrangement, acc, played_at, title, artist, arrs_json, genre in rows:
+        gkey = _genre_key(genre)
+        if not gkey:
+            continue
+        if filename not in arrs_cache:
+            try:
+                arrs_cache[filename] = json.loads(arrs_json) if arrs_json else None
+            except (TypeError, ValueError):
+                arrs_cache[filename] = None
+        instrument = _instrument_of(arrs_cache[filename], arrangement)
+        acc = acc or 0.0
+        stub = out.setdefault((instrument, gkey), {}).get(filename)
+        if stub is None:
+            out[(instrument, gkey)][filename] = {
+                "filename": filename,
+                "title": title or filename,
+                "artist": artist or "",
+                "best_accuracy": acc,
+                "last_played_at": played_at,
+            }
+        else:
+            stub["best_accuracy"] = max(stub["best_accuracy"], acc)
+            stub["last_played_at"] = max(stub["last_played_at"] or "", played_at or "") or None
+    for stubs in out.values():
+        for stub in stubs.values():
+            acc = stub["best_accuracy"]
+            stub["best_accuracy"] = round(acc, 4)
+            stub["stars"] = sum(1 for t in thresholds if acc >= t)
+    return out
+
+
+def _library_genres():
+    """Distinct effective genres across the live library (the brochure rack)."""
+    db = _state["meta_db"]
+    if db is None:
+        return []
+    rows = db.conn.execute(
+        f"SELECT {_genre_expr(db)} AS g, COUNT(*) FROM songs GROUP BY g").fetchall()
+    by_key = {}
+    for genre, count in rows:
+        display = _genre_display(genre)
+        key = display.lower()
+        if not key:
+            continue
+        cur = by_key.get(key)
+        if cur:  # case-variant duplicates collapse onto the first-seen casing
+            cur["songs_in_library"] += count
+        else:
+            by_key[key] = {"genre_key": key, "genre": display,
+                           "songs_in_library": count}
+    return sorted(by_key.values(),
+                  key=lambda r: (-r["songs_in_library"], r["genre_key"]))
+
+
+def _badge_requirement(gkey):
+    cfg = _state["passports_content"]
+    req = dict(cfg.get("badge_requirement") or {})
+    req.setdefault("songs", 5)
+    req.setdefault("min_stars", 2)
+    override = (cfg.get("genres") or {}).get(gkey)
+    if isinstance(override, dict):
+        req.update(override)
+    req["virtuoso_nodes"] = [n for n in (req.get("virtuoso_nodes") or [])
+                             if isinstance(n, str)]
+    return req
+
+
+def _drill_by_node():
+    doc = _load_json(_drill_file(), {})
+    if not isinstance(doc, dict):
+        return None, {}
+    snapshot = doc.get("snapshot") if isinstance(doc.get("snapshot"), dict) else {}
+    by_node = snapshot.get("byNode") if isinstance(snapshot.get("byNode"), dict) else {}
+    return doc.get("received_at"), by_node
+
+
+def _node_cleared(by_node, node_id):
+    """A drill counts as cleared on real completion evidence: mastered, or any
+    depth rung flipped true (virtuoso's gained-only false→true artifacts)."""
+    entry = by_node.get(node_id)
+    if not isinstance(entry, dict):
+        return False
+    depth = entry.get("depth") if isinstance(entry.get("depth"), dict) else {}
+    return bool(entry.get("masteredAt")) or any(bool(v) for v in depth.values())
+
+
+def _passports_view():
+    cfg = _state["passports_content"]
+    graded = set(cfg.get("graded_instruments") or [])
+    st = _career_state()
+    played = _played_by_instrument_genre()
+    received_at, by_node = _drill_by_node()
+    instruments = {}
+    for inst in cfg.get("instruments") or []:
+        committed_at = (st["instruments"].get(inst) or {}).get("committed_at")
+        opened = st["passports"].get(inst)
+        opened = opened if isinstance(opened, dict) else {}
+        passports = []
+        for gkey, meta in sorted(opened.items(),
+                                 key=lambda kv: ((kv[1] or {}).get("opened_at") or "", kv[0])):
+            meta = meta if isinstance(meta, dict) else {}
+            req = _badge_requirement(gkey)
+            songs = list(played.get((inst, gkey), {}).values())
+            for s in songs:
+                s["qualifies"] = s["stars"] >= req["min_stars"]
+            songs.sort(key=lambda s: (not s["qualifies"], -s["stars"],
+                                      s["title"].lower()))
+            qualifying = sum(1 for s in songs if s["qualifies"])
+            required = req["virtuoso_nodes"]
+            cleared = [n for n in required if _node_cleared(by_node, n)]
+            is_graded = inst in graded
+            if not is_graded:
+                # Where the engine can't fairly grade the instrument's job
+                # (bass pocket, feel) the passport shows repertoire, never a
+                # false badge denial — the doc's shown-not-judged rule.
+                badge = "shown_not_judged"
+            elif qualifying >= req["songs"] and len(cleared) == len(required):
+                badge = "earned"
+            else:
+                badge = "in_progress"
+            passports.append({
+                "genre_key": gkey,
+                "genre": meta.get("genre") or gkey,
+                "opened_at": meta.get("opened_at"),
+                "requirement": req,
+                "graded": is_graded,
+                "songs": songs,
+                "qualifying_count": qualifying,
+                "drills": {"required": required, "cleared": cleared},
+                "badge": badge,
+            })
+        instruments[inst] = {"committed_at": committed_at, "passports": passports}
+    return {
+        "config": {
+            "badge_requirement": cfg.get("badge_requirement") or {},
+            "graded_instruments": sorted(graded),
+            "instruments": list(cfg.get("instruments") or []),
+        },
+        "instruments": instruments,
+        "genres": _library_genres(),
+        "drill_state": {"received_at": received_at},
+    }
+
+
 def _validate_pack_dir(pack_dir: Path):
     """Raise ValueError unless pack_dir holds a complete venue pack."""
     manifest_path = pack_dir / "manifest.json"
@@ -174,12 +435,23 @@ def _download_pack(venue_id, pack, progress):
 
 def setup(app, context):
     plugin_dir = Path(__file__).resolve().parent
+    _state["plugin_dir"] = plugin_dir
     _state["content"] = json.loads((plugin_dir / "venues.json").read_text(encoding="utf-8"))
     _state["venues_dir"] = (
         Path(context["config_dir"]) / "plugin_uploads" / PLUGIN_ID / "venues")
     _state["venues_dir"].mkdir(parents=True, exist_ok=True)
+    _state["passports_content"] = json.loads(
+        (plugin_dir / "passports.json").read_text(encoding="utf-8"))
+    # Persisted career state (commitment / opened passports / drill snapshot)
+    # lives under CONFIG_DIR/career/ — declared in settings.server_files so it
+    # rides the settings export/import bundle. Packs stay out (they're media).
+    _state["state_dir"] = Path(context["config_dir"]) / PLUGIN_ID
+    _state["state_dir"].mkdir(parents=True, exist_ok=True)
     _state["meta_db"] = context.get("meta_db")
     _state["log"] = context.get("log") or _state["log"]
+    for v in _state["content"]["venues"]:
+        if _bundled(v["id"]):
+            _validate_pack_dir(_bundled_venue_dir(v["id"]))
 
     @app.get(f"/api/plugins/{PLUGIN_ID}/state")
     def get_state():
@@ -195,7 +467,8 @@ def setup(app, context):
                 "star_threshold": v["star_threshold"],
                 "unlocked": stars_total >= v["star_threshold"],
                 "installed": _installed(v["id"]),
-                "has_pack": bool(v.get("pack")),
+                "bundled": _bundled(v["id"]),
+                "has_pack": _bundled(v["id"]) or bool(v.get("pack")),
                 "download": dl,
             })
         return {
@@ -206,6 +479,64 @@ def setup(app, context):
             "venues": venues,
         }
 
+    @app.get(f"/api/plugins/{PLUGIN_ID}/passports")
+    def get_passports():
+        with _lock:
+            return _passports_view()
+
+    @app.post(f"/api/plugins/{PLUGIN_ID}/passports/commit")
+    def commit_instrument(body: dict = Body(...)):
+        inst = str((body or {}).get("instrument") or "")
+        if inst not in (_state["passports_content"].get("instruments") or []):
+            raise HTTPException(400, "Unknown instrument.")
+        with _lock:
+            st = _career_state()
+            entry = st["instruments"].setdefault(inst, {})
+            # Idempotent: the wax seal is pressed once; re-commits keep the
+            # original date (only-gained-never-lost).
+            if not entry.get("committed_at"):
+                entry["committed_at"] = _now_iso()
+                _save_json(_state_file(), st)
+        return {"ok": True, "instrument": inst,
+                "committed_at": entry["committed_at"]}
+
+    @app.post(f"/api/plugins/{PLUGIN_ID}/passports/open")
+    def open_passport(body: dict = Body(...)):
+        inst = str((body or {}).get("instrument") or "")
+        genre = _genre_display((body or {}).get("genre"))
+        gkey = genre.lower()
+        if inst not in (_state["passports_content"].get("instruments") or []):
+            raise HTTPException(400, "Unknown instrument.")
+        if not gkey or len(genre) > GENRE_MAX_LEN:
+            raise HTTPException(400, "Provide a genre.")
+        with _lock:
+            st = _career_state()
+            # Opening a passport implies the instrument commitment (permissive
+            # server, ceremony ordering is the UI's job).
+            st["instruments"].setdefault(inst, {}).setdefault(
+                "committed_at", _now_iso())
+            genres = st["passports"].setdefault(inst, {})
+            if gkey not in genres:
+                genres[gkey] = {"genre": genre, "opened_at": _now_iso()}
+                _save_json(_state_file(), st)
+        return {"ok": True, "instrument": inst, "passport": genres[gkey]}
+
+    @app.post(f"/api/plugins/{PLUGIN_ID}/drill-state")
+    def post_drill_state(body: dict = Body(...)):
+        # The relayed virtuoso.progress snapshot (career's screen.js listens to
+        # the virtuoso:progress bus event and forwards the localStorage doc).
+        # Only the fields the badge check reads are kept.
+        if not isinstance(body, dict) or not isinstance(body.get("byNode"), dict):
+            raise HTTPException(400, "Expected a progress snapshot with byNode.")
+        snapshot = {"mode": body.get("mode"), "xp": body.get("xp"),
+                    "byNode": body["byNode"]}
+        if len(json.dumps(snapshot)) > DRILL_SNAPSHOT_MAX_BYTES:
+            raise HTTPException(413, "Snapshot too large.")
+        with _lock:
+            _save_json(_drill_file(), {"received_at": _now_iso(),
+                                       "snapshot": snapshot})
+        return {"ok": True}
+
     @app.post(f"/api/plugins/{PLUGIN_ID}/packs/{{venue_id}}/download")
     def start_download(venue_id: str):
         venue = _venue(venue_id) if VENUE_ID_RE.fullmatch(venue_id) else None
@@ -244,12 +575,13 @@ def setup(app, context):
     async def get_pack_file(venue_id: str, filename: str):
         if not VENUE_ID_RE.fullmatch(venue_id) or not PACK_FILENAME_RE.fullmatch(filename):
             raise HTTPException(404, "Not found.")
-        path = _venue_dir(venue_id) / filename
+        pack_dir = _pack_dir(venue_id)
+        path = pack_dir / filename
         # Defense-in-depth beyond the regexes (same recipe as highway_3d):
-        # the resolved path must stay inside the venues dir.
+        # the resolved path must stay inside the selected pack dir.
         try:
             resolved = path.resolve()
-            resolved.relative_to(_state["venues_dir"].resolve())
+            resolved.relative_to(pack_dir.resolve())
         except (OSError, ValueError):
             raise HTTPException(404, "Not found.")
         if not resolved.is_file():

plugins/career/screen.html

@@ -3,19 +3,40 @@
         <h1 class="text-2xl font-bold text-white">Career</h1>
         <div id="career-stars-summary" class="text-sm text-gray-400"></div>
     </div>
-    <p class="text-sm text-gray-400 mb-4">Earn stars by playing songs well — 60% accuracy is a star, 75% two, 85% three. Stars unlock bigger stages, and the crowd plays along with you.</p>
-    <div id="career-progress-wrap" class="mb-6">
-        <div class="career-bar-track">
-            <div id="career-progress-bar" class="career-bar-fill" style="width:0%"></div>
-        </div>
-        <div id="career-progress-label" class="text-xs text-gray-500 mt-1"></div>
+    <div class="career-tabs" role="tablist">
+        <button class="career-tab" data-career-tab="venues" role="tab" id="career-tab-btn-venues" aria-controls="career-tab-venues">Venues</button>
+        <button class="career-tab" data-career-tab="passports" role="tab" id="career-tab-btn-passports" aria-controls="career-tab-passports">Passports</button>
     </div>
-    <div id="career-venues" class="career-venues"></div>
-    <div class="mt-8">
-        <div class="flex items-end justify-between flex-wrap gap-2 mb-2">
-            <h2 class="text-lg font-semibold text-white">Your star collection</h2>
-            <div id="career-star-summary" class="text-xs text-gray-400"></div>
+
+    <div id="career-tab-venues" role="tabpanel" aria-labelledby="career-tab-btn-venues">
+        <p class="text-sm text-gray-400 mb-4">Earn stars by playing songs well — 60% accuracy is a star, 75% two, 85% three. Stars unlock bigger stages, and the crowd plays along with you.</p>
+        <div id="career-progress-wrap" class="mb-6">
+            <div class="career-bar-track">
+                <div id="career-progress-bar" class="career-bar-fill" style="width:0%"></div>
+            </div>
+            <div id="career-progress-label" class="text-xs text-gray-500 mt-1"></div>
+        </div>
+        <div id="career-venues" class="career-venues"></div>
+        <div class="mt-8">
+            <div class="flex items-end justify-between flex-wrap gap-2 mb-2">
+                <h2 class="text-lg font-semibold text-white">Your star collection</h2>
+                <div id="career-star-summary" class="text-xs text-gray-400"></div>
+            </div>
+            <div id="career-star-list" class="career-star-list"></div>
+        </div>
+    </div>
+
+    <div id="career-tab-passports" class="hidden" role="tabpanel" aria-labelledby="career-tab-btn-passports">
+        <p class="text-sm text-gray-400 mb-4">Commit to an instrument, pick a genre, and stamp your way to its badge — five ★★ songs mint a Bronze. Your passport wall is who you are as a musician.</p>
+        <div id="pp-instruments" class="pp-instruments"></div>
+        <div id="pp-shelf-wrap" class="mt-5">
+            <div id="pp-shelf" class="pp-shelf"></div>
+        </div>
+        <div id="pp-rack-wrap" class="mt-8">
+            <h2 class="text-lg font-semibold text-white mb-1">Explore next</h2>
+            <p class="text-xs text-gray-500 mb-3">More genres, whenever you want them — your wall is complete as it is.</p>
+            <div id="pp-rack" class="pp-rack"></div>
         </div>
-        <div id="career-star-list" class="career-star-list"></div>
     </div>
 </div>
+<div id="pp-overlay" class="pp-overlay hidden"></div>

plugins/career/screen.js

@@ -17,11 +17,25 @@
     const PREV_VIZ_KEY = 'feedBack-career-prev-viz';
     const POLL_MS = 2000;
 
+    // Passports (the badge-journey layer; see routes.py — badges are computed
+    // server-side, this file only renders and relays).
+    const PP_SEEN_KEY = 'feedBack-career-badges-seen';
+    const PP_INST_KEY = 'feedBack-career-instrument';
+    const PP_TAB_KEY = 'feedBack-career-tab';
+    const PP_LABELS = { guitar: 'Guitar', bass: 'Bass', keys: 'Keys', drums: 'Drums' };
+    const PP_BROCHURE_ART = ['🎸', '🎷', '🎹', '🥁', '🎺', '🎻', '🎤', '🪕'];
+
     let _state = null;
     let _pollTimer = 0;
     let _appliedManifestVenue = null;
     let _manifestReqGen = 0; // invalidates in-flight manifest fetches
     let _prevUnlockedIds = null;
+    let _pp = null;              // last /passports view
+    let _ppRelayTimer = 0;
+    let _ppBook = null;          // {inst, gkey} of the open spread
+    let _ppReturnFocus = null;   // element to refocus when the book closes
+    let _ppBootstrapped = false;
+    let _ppNotified = {};        // badges chimed this session (slam still pending)
 
     function $(id) { return document.getElementById(id); }
 
@@ -89,9 +103,12 @@
             const main = active
                 ? `<button data-career-unselect="1" class="career-btn career-btn-ghost">Leave venue</button>`
                 : `<button data-career-play="${esc(v.id)}" class="career-btn career-btn-primary">Play here</button>`;
+            const remove = v.bundled
+                ? ''
+                : `<button data-career-delete="${esc(v.id)}" class="career-btn career-btn-ghost">Remove pack</button>`;
             action = `<div class="flex items-center gap-2">
                 ${main}
-                <button data-career-delete="${esc(v.id)}" class="career-btn career-btn-ghost">Remove pack</button>
+                ${remove}
             </div>`;
         } else if (v.has_pack) {
             const err = dl.status === 'error'
@@ -216,9 +233,401 @@
         render(state);
         schedulePoll(state);
         pushCrowdManifest(state);
+        refreshPassports(); // independent fetch; failures don't touch venues
+    }
+
+    // ── Passports ─────────────────────────────────────────────────────────
+
+    function lsGet(k) { try { return localStorage.getItem(k); } catch (_) { return null; } }
+    function lsSet(k, v) { try { localStorage.setItem(k, v); } catch (_) { /* ok */ } }
+
+    function ppLabel(inst) {
+        return PP_LABELS[inst] || (inst.charAt(0).toUpperCase() + inst.slice(1));
+    }
+
+    function ppKey(genre) {
+        return String(genre || '').trim().replace(/\s+/g, ' ').toLowerCase();
+    }
+
+    function ppHash(seed) {
+        let h = 0;
+        for (let i = 0; i < seed.length; i++) h = (h * 31 + seed.charCodeAt(i)) | 0;
+        return h;
+    }
+
+    // Deterministic per-key jitter (sin-hash): stamps and stubs land slightly
+    // askew, the same way on every visit.
+    function ppJitter(seed, range) {
+        return (Math.abs(Math.sin(ppHash(seed))) * 2 - 1) * range;
+    }
+
+    function sfx(name) {
+        try {
+            const a = new Audio(`${API}/assets/sfx/${name}.mp3`);
+            a.volume = 0.45;
+            a.play().catch(() => { /* autoplay policy — silent is fine */ });
+        } catch (_) { /* no Audio — fine */ }
+    }
+
+    function showCareerTab(tab) {
+        lsSet(PP_TAB_KEY, tab);
+        const venues = $('career-tab-venues');
+        const pp = $('career-tab-passports');
+        if (!venues || !pp) return;
+        venues.classList.toggle('hidden', tab !== 'venues');
+        pp.classList.toggle('hidden', tab !== 'passports');
+        document.querySelectorAll('#plugin-career .career-tab').forEach((b) => {
+            const active = b.dataset.careerTab === tab;
+            b.classList.toggle('active', active);
+            b.setAttribute('aria-selected', active ? 'true' : 'false');
+        });
+    }
+
+    function activeInstrument() {
+        const list = (_pp && _pp.config && _pp.config.instruments) || [];
+        const saved = lsGet(PP_INST_KEY);
+        if (saved && list.includes(saved)) return saved;
+        const committed = list.find((i) => ((_pp.instruments || {})[i] || {}).committed_at);
+        return committed || list[0] || 'guitar';
+    }
+
+    function seenBadges() {
+        try {
+            const seen = JSON.parse(lsGet(PP_SEEN_KEY) || '{}');
+            // Guard non-object JSON (a stray "null" or array) — a broken
+            // stored value must not throw on every passport refresh.
+            return seen && typeof seen === 'object' && !Array.isArray(seen) ? seen : {};
+        } catch (_) { return {}; }
+    }
+
+    function badgeId(inst, gkey) { return inst + '/' + gkey; }
+
+    function markBadgeSeen(inst, gkey) {
+        const seen = seenBadges();
+        seen[badgeId(inst, gkey)] = 1;
+        lsSet(PP_SEEN_KEY, JSON.stringify(seen));
+    }
+
+    // New badge → chime + notification once per session; the stamp SLAM plays
+    // when the passport is next opened (and only then is the badge marked
+    // seen, so a pending slam survives a reload).
+    function detectNewBadges(view) {
+        const seen = seenBadges();
+        for (const inst of Object.keys(view.instruments || {})) {
+            for (const p of (view.instruments[inst].passports || [])) {
+                const id = badgeId(inst, p.genre_key);
+                if (p.badge !== 'earned' || seen[id] || _ppNotified[id]) continue;
+                _ppNotified[id] = true;
+                sfx('chime');
+                if (window.fbNotify && typeof window.fbNotify.show === 'function') {
+                    window.fbNotify.show({
+                        big: true, icon: '🛂', accent: '#b45309',
+                        title: 'Badge earned!',
+                        message: `${p.genre} — Bronze, ready to stamp into your ${ppLabel(inst)} passport.`,
+                    });
+                }
+            }
+        }
+    }
+
+    // Relay the Virtuoso drill snapshot (localStorage doc, not the thin bus
+    // payload) to the server intake, debounced across event bursts.
+    function relayDrillState() {
+        clearTimeout(_ppRelayTimer);
+        _ppRelayTimer = setTimeout(() => {
+            let snap = null;
+            try { snap = JSON.parse(lsGet('virtuoso.progress') || 'null'); } catch (_) { /* corrupt */ }
+            if (!snap || typeof snap !== 'object' || !snap.byNode || typeof snap.byNode !== 'object') return;
+            fetch(`${API}/drill-state`, {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/json' },
+                body: JSON.stringify({ mode: snap.mode, xp: snap.xp, byNode: snap.byNode }),
+            }).then(() => refreshPassports()).catch(() => { /* next event retries */ });
+        }, 1500);
+    }
+
+    async function refreshPassports() {
+        let view;
+        try {
+            const res = await fetch(`${API}/passports`);
+            if (!res.ok) return;
+            view = await res.json();
+        } catch (_) { return; }
+        _pp = view;
+        detectNewBadges(view);
+        renderPassports();
+        if (!_ppBootstrapped) {
+            _ppBootstrapped = true;
+            // First run on this browser: seed the server with the local drill
+            // snapshot if it has never received one.
+            if (!(view.drill_state || {}).received_at) relayDrillState();
+        }
+    }
+
+    function ppCoverHTML(inst, p) {
+        const rot = ppJitter(inst + p.genre_key, 1.6).toFixed(2);
+        const stamp = p.badge === 'earned'
+            ? `<span class="pp-stamp pp-stamp-mini" style="--pp-rot:${ppJitter(p.genre_key, 8).toFixed(1)}deg">BRONZE</span>`
+            : '';
+        const stubs = p.qualifying_count === 1 ? '1 stub' : `${p.qualifying_count} stubs`;
+        return `<button class="pp-cover pp-leather-${esc(inst)}" data-pp-open="${esc(p.genre_key)}" style="transform:rotate(${rot}deg)">
+            <span class="pp-cover-title">${esc(p.genre.toUpperCase())}</span>
+            <span class="pp-cover-inst">${esc(ppLabel(inst))} passport</span>
+            ${stamp}
+            <span class="pp-cover-sub">${stubs}</span>
+        </button>`;
+    }
+
+    function renderShelf(inst, data) {
+        const shelf = $('pp-shelf');
+        if (!shelf) return;
+        if (!data.committed_at) {
+            shelf.innerHTML = `<div class="pp-commit-card">
+                <div class="pp-commit-cover pp-leather-${esc(inst)}">
+                    <span class="pp-cover-title">${esc(ppLabel(inst).toUpperCase())}</span>
+                    <span class="pp-cover-inst">passport</span>
+                </div>
+                <div>
+                    <div class="text-sm text-gray-200 font-medium mb-1">Pick up the ${esc(ppLabel(inst).toLowerCase())}.</div>
+                    <div class="text-xs text-gray-400 mb-2">Press your seal to commit — then choose a genre below and go deep.</div>
+                    <button class="career-btn career-btn-primary" data-pp-commit="${esc(inst)}">Press the seal</button>
+                </div>
+            </div>`;
+            return;
+        }
+        const books = (data.passports || []).map((p) => ppCoverHTML(inst, p)).join('');
+        shelf.innerHTML = books ||
+            '<div class="text-xs text-gray-500">Your shelf is ready — open your first genre passport below.</div>';
+    }
+
+    function renderRack(inst, data) {
+        const rack = $('pp-rack');
+        if (!rack || !_pp) return;
+        const openedKeys = new Set((data.passports || []).map((p) => p.genre_key));
+        const genres = (_pp.genres || []).filter((g) => !openedKeys.has(g.genre_key));
+        if (!genres.length) {
+            rack.innerHTML = '<div class="text-xs text-gray-500">No further genres in your library yet — new songs bring new brochures.</div>';
+            return;
+        }
+        rack.innerHTML = genres.map((g) => {
+            const art = PP_BROCHURE_ART[Math.abs(ppHash(g.genre_key)) % PP_BROCHURE_ART.length];
+            return `<button class="pp-brochure" data-pp-genre="${esc(g.genre)}">
+                <span class="pp-brochure-art" aria-hidden="true">${art}</span>
+                <span class="pp-brochure-name">${esc(g.genre)}</span>
+                <span class="pp-brochure-sub">${g.songs_in_library === 1 ? '1 song' : `${g.songs_in_library} songs`} in your library</span>
+            </button>`;
+        }).join('');
+    }
+
+    function renderPassports() {
+        const host = $('pp-instruments');
+        if (!host || !_pp) return;
+        const inst = activeInstrument();
+        const data = (_pp.instruments || {})[inst] || { passports: [] };
+        host.innerHTML = ((_pp.config || {}).instruments || []).map((i) => {
+            const d = (_pp.instruments || {})[i] || {};
+            const earned = (d.passports || []).filter((p) => p.badge === 'earned').length;
+            const committed = !!d.committed_at;
+            return `<button class="pp-inst${i === inst ? ' active' : ''}${committed ? '' : ' uncommitted'}" data-pp-inst="${esc(i)}">
+                ${esc(ppLabel(i))}${earned ? ` <span class="pp-inst-badges">⚡${earned}</span>` : ''}${committed ? '' : ' <span class="pp-inst-plus">+</span>'}
+            </button>`;
+        }).join('');
+        renderShelf(inst, data);
+        renderRack(inst, data);
+    }
+
+    function ppStubHTML(s) {
+        const date = (s.last_played_at || '').slice(0, 10);
+        return `<div class="pp-stub" style="transform:rotate(${ppJitter(s.filename, 1.2).toFixed(2)}deg)">
+            <span class="pp-stub-stars">${'★'.repeat(s.stars)}</span>
+            <span class="pp-stub-title">${esc(s.title)}</span>
+            ${s.artist ? `<span class="pp-stub-artist">${esc(s.artist)}</span>` : ''}
+            <span class="pp-stub-meta">${date ? `${esc(date)} · ` : ''}best ${(s.best_accuracy * 100).toFixed(0)}%</span>
+        </div>`;
+    }
+
+    function ppBookHTML(inst, p, pendingSlam) {
+        const req = p.requirement || {};
+        const need = Math.max(0, (req.songs || 0) - p.qualifying_count);
+        const starGl = '★'.repeat(req.min_stars || 0);
+        let badgeArea = '';
+        if (p.badge === 'shown_not_judged') {
+            badgeArea = `<div class="pp-snj">Shown, not judged — your ${esc(ppLabel(inst).toLowerCase())} repertoire speaks for itself.</div>`;
+        } else if (p.badge === 'earned') {
+            badgeArea = `<div class="pp-stamp pp-stamp-page${pendingSlam ? ' pp-stamp-hidden' : ''}" style="--pp-rot:${ppJitter(p.genre_key, 7).toFixed(1)}deg">
+                <span class="pp-stamp-genre">${esc(p.genre.toUpperCase())}</span>
+                <span class="pp-stamp-tier">BRONZE</span>
+            </div>
+            <div class="pp-gold-note">Gold rung coming — improvise it, verified.</div>`;
+        } else {
+            badgeArea = `<div class="pp-stamp pp-stamp-page pp-stamp-ghost" style="--pp-rot:${ppJitter(p.genre_key, 7).toFixed(1)}deg">
+                <span class="pp-stamp-genre">${esc(p.genre.toUpperCase())}</span>
+                <span class="pp-stamp-tier">BRONZE</span>
+            </div>
+            <div class="pp-invite">${need === 1 ? `One more ${starGl} song mints this stamp.` : `${need} more ${starGl} songs mint this stamp.`}</div>`;
+        }
+        let drills = '';
+        const reqNodes = (p.drills || {}).required || [];
+        if (reqNodes.length) {
+            const cleared = new Set((p.drills || {}).cleared || []);
+            drills = `<div class="pp-drills">${reqNodes.map((n) =>
+                `<div class="pp-drill${cleared.has(n) ? ' cleared' : ''}">${cleared.has(n) ? '✓' : '○'} ${esc(n)}</div>`).join('')}</div>`;
+        }
+        // Graded instruments collect stubs at the badge bar; shown-not-judged
+        // instruments have no bar — every played genre song is repertoire.
+        const stubs = p.badge === 'shown_not_judged'
+            ? (p.songs || [])
+            : (p.songs || []).filter((s) => s.qualifies);
+        const emptyLine = p.badge === 'shown_not_judged'
+            ? `Play ${esc(p.genre)} songs to fill this page.`
+            : `Play ${esc(p.genre)} songs at ${starGl} to collect ticket stubs.`;
+        const stubsHTML = stubs.length ? stubs.map(ppStubHTML).join('')
+            : `<div class="pp-stub-empty">${emptyLine}</div>`;
+        return `<div class="pp-book-wrap" data-pp-close-bg="1" role="dialog" aria-modal="true" aria-label="${esc(p.genre)} ${esc(ppLabel(inst))} passport">
+            <div class="pp-book">
+                <div class="pp-page pp-page-left">
+                    <div class="pp-page-head">${esc(p.genre)} — ${esc(ppLabel(inst))}</div>
+                    ${badgeArea}${drills}
+                </div>
+                <div class="pp-page pp-page-right">
+                    <div class="pp-page-head">Ticket stubs</div>
+                    <div class="pp-stubs">${stubsHTML}</div>
+                </div>
+                <div class="pp-book-cover pp-leather-${esc(inst)}">
+                    <span class="pp-cover-title">${esc(p.genre.toUpperCase())}</span>
+                    <span class="pp-cover-inst">${esc(ppLabel(inst))} passport</span>
+                </div>
+                <button class="pp-book-close" data-pp-close="1" aria-label="Close">✕</button>
+            </div>
+        </div>`;
+    }
+
+    function openBook(inst, gkey) {
+        if (!_pp) return;
+        const p = (((_pp.instruments || {})[inst] || {}).passports || [])
+            .find((x) => x.genre_key === gkey);
+        const overlay = $('pp-overlay');
+        if (!p || !overlay) return;
+        _ppBook = { inst, gkey };
+        _ppReturnFocus = document.activeElement;
+        const pending = p.badge === 'earned' && !seenBadges()[badgeId(inst, gkey)];
+        overlay.innerHTML = ppBookHTML(inst, p, pending);
+        overlay.classList.remove('hidden');
+        const close = overlay.querySelector('.pp-book-close');
+        if (close) close.focus();
+        sfx('page');
+        // Double rAF so the cover's closed state paints before the transition.
+        requestAnimationFrame(() => requestAnimationFrame(() => {
+            const book = overlay.querySelector('.pp-book');
+            if (book) book.classList.add('open');
+        }));
+        if (pending) {
+            setTimeout(() => {
+                if (!_ppBook || _ppBook.gkey !== gkey || _ppBook.inst !== inst) return;
+                const stamp = overlay.querySelector('.pp-stamp-page');
+                const book = overlay.querySelector('.pp-book');
+                if (!stamp) return;
+                stamp.classList.remove('pp-stamp-hidden');
+                stamp.classList.add('pp-slam');
+                if (book) book.classList.add('pp-shake');
+                sfx('stamp');
+                markBadgeSeen(inst, gkey);
+                renderPassports(); // the shelf cover gains its mini-stamp
+            }, 950);
+        }
+    }
+
+    function closeBook() {
+        _ppBook = null;
+        const overlay = $('pp-overlay');
+        if (overlay) { overlay.classList.add('hidden'); overlay.innerHTML = ''; }
+        if (_ppReturnFocus && typeof _ppReturnFocus.focus === 'function' &&
+            document.contains(_ppReturnFocus)) {
+            _ppReturnFocus.focus();
+        }
+        _ppReturnFocus = null;
+    }
+
+    function commitInstrument(inst, after) {
+        fetch(`${API}/passports/commit`, {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ instrument: inst }),
+        }).then(() => refreshPassports())
+            .then(() => { if (after) after(); })
+            .catch(() => { /* server restarting; user retries */ });
+    }
+
+    // Stage 0 — the wax seal. Purely theatrical: the overlay plays the press,
+    // the POST commits, the shelf re-renders committed.
+    function sealCeremony(inst, after) {
+        const overlay = $('pp-overlay');
+        if (!overlay) { commitInstrument(inst, after); return; }
+        overlay.innerHTML = `<div class="pp-book-wrap">
+            <div class="pp-commit-cover pp-ceremony pp-leather-${esc(inst)}">
+                <span class="pp-cover-title">${esc(ppLabel(inst).toUpperCase())}</span>
+                <span class="pp-cover-inst">passport</span>
+                <span class="pp-wax"><span>${esc(ppLabel(inst).charAt(0))}</span></span>
+            </div>
+        </div>`;
+        overlay.classList.remove('hidden');
+        setTimeout(() => sfx('seal'), 450);
+        setTimeout(() => {
+            overlay.classList.add('hidden');
+            overlay.innerHTML = '';
+            commitInstrument(inst, after);
+        }, 1500);
+    }
+
+    function openGenre(inst, genre) {
+        fetch(`${API}/passports/open`, {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ instrument: inst, genre }),
+        }).then((res) => { if (!res.ok) throw new Error('open ' + res.status); })
+            .then(() => refreshPassports())
+            .then(() => openBook(inst, ppKey(genre)))
+            .catch(() => { /* validation/restart; rack stays */ });
     }
 
     function onClick(e) {
+        const tabBtn = e.target.closest('[data-career-tab]');
+        const instBtn = e.target.closest('[data-pp-inst]');
+        const commitBtn = e.target.closest('[data-pp-commit]');
+        const coverBtn = e.target.closest('[data-pp-open]');
+        const brochureBtn = e.target.closest('[data-pp-genre]');
+        if (tabBtn) {
+            showCareerTab(tabBtn.dataset.careerTab);
+            return;
+        }
+        if (instBtn) {
+            lsSet(PP_INST_KEY, instBtn.dataset.ppInst);
+            renderPassports();
+            return;
+        }
+        if (commitBtn) {
+            sealCeremony(commitBtn.dataset.ppCommit);
+            return;
+        }
+        if (coverBtn) {
+            openBook(activeInstrument(), coverBtn.dataset.ppOpen);
+            return;
+        }
+        if (brochureBtn) {
+            const inst = activeInstrument();
+            const genre = brochureBtn.dataset.ppGenre;
+            const committed = _pp && ((_pp.instruments || {})[inst] || {}).committed_at;
+            // Opening your first passport on an instrument IS the commitment —
+            // the seal ceremony runs first, then the passport opens.
+            if (committed) openGenre(inst, genre);
+            else sealCeremony(inst, () => openGenre(inst, genre));
+            return;
+        }
+        if (e.target.closest('[data-pp-close]') ||
+            (e.target.dataset && e.target.dataset.ppCloseBg)) {
+            closeBook();
+            return;
+        }
         const dlBtn = e.target.closest('[data-career-download]');
         const delBtn = e.target.closest('[data-career-delete]');
         const playBtn = e.target.closest('[data-career-play]');
@@ -265,10 +674,24 @@
         if (sm && typeof sm.on === 'function') {
             // New song stats can add stars → thresholds may cross mid-session.
             sm.on('stats:recorded', () => refresh());
+            // Virtuoso's progress emits are the drill-state relay trigger; the
+            // payload is a thin delta, so the relay reads the full localStorage
+            // snapshot instead (see relayDrillState).
+            sm.on('virtuoso:progress', relayDrillState);
         }
+        showCareerTab(lsGet(PP_TAB_KEY) === 'passports' ? 'passports' : 'venues');
+        document.addEventListener('keydown', (e) => {
+            if (e.key === 'Escape' && _ppBook) closeBook();
+        });
         refresh();
     }
 
+    // Test seam (bare-vm harness, see plugins/career/tests/): pure helpers +
+    // the badge-diff logic; nothing here touches the DOM.
+    window.__careerPassportTest = {
+        ppKey, ppJitter, ppLabel, detectNewBadges, seenBadges, markBadgeSeen,
+    };
+
     if (document.readyState === 'loading') {
         document.addEventListener('DOMContentLoaded', boot);
     } else {

plugins/career/settings.html

@@ -0,0 +1,10 @@
+<!-- Career plugin — data panel. Exists so the passport/drill state declared in
+     settings.server_files has a visible home in Settings; nothing to configure. -->
+<div class="text-sm text-gray-300 space-y-2">
+  <p><strong>Career</strong> computes stars and genre badges from your play
+     stats — they are never stored, so there is nothing to back up or reset.</p>
+  <p class="text-gray-400">What <em>is</em> saved server-side: your instrument
+     commitments, opened genre passports, and the practice-drill snapshot the
+     Virtuoso plugin reports. These ride along in
+     <em>Settings → Export</em> automatically.</p>
+</div>

plugins/career/tests/passports.test.js

@@ -0,0 +1,101 @@
+// Passport UI pure-logic tests: load screen.js in a bare vm window and
+// exercise the __careerPassportTest seam (no DOM beyond stubs, no network).
+const { test } = require('node:test');
+const assert = require('node:assert/strict');
+const fs = require('node:fs');
+const path = require('node:path');
+const vm = require('node:vm');
+
+function load(seed) {
+    const store = Object.assign({}, seed);
+    const window = {
+        console,
+        localStorage: {
+            getItem: (k) => (k in store ? store[k] : null),
+            setItem: (k, v) => { store[k] = String(v); },
+        },
+        document: {
+            readyState: 'complete',
+            getElementById: () => null,
+            querySelectorAll: () => [],
+            addEventListener: () => {},
+        },
+        notifications: [],
+    };
+    window.window = window;
+    window.globalThis = window;
+    window.fbNotify = { show: (n) => window.notifications.push(n) };
+    const context = vm.createContext(window);
+    // `document` and `localStorage` resolve as bare names inside the IIFE.
+    context.document = window.document;
+    context.localStorage = window.localStorage;
+    const src = fs.readFileSync(path.join(__dirname, '..', 'screen.js'), 'utf8');
+    vm.runInContext(src, context, { filename: 'career/screen.js' });
+    return window;
+}
+
+test('module loads (and boots) in a bare vm window', () => {
+    const w = load();
+    assert.equal(typeof w.__careerPassportTest.ppKey, 'function');
+});
+
+test('ppKey normalizes case and whitespace', () => {
+    const { ppKey } = load().__careerPassportTest;
+    assert.equal(ppKey('  Blues  Rock '), 'blues rock');
+    assert.equal(ppKey('FUNK'), 'funk');
+    assert.equal(ppKey(''), '');
+    assert.equal(ppKey(null), '');
+});
+
+test('ppJitter is deterministic and bounded', () => {
+    const { ppJitter } = load().__careerPassportTest;
+    assert.equal(ppJitter('blues', 8), ppJitter('blues', 8));
+    for (const seed of ['blues', 'funk', 'jazz', 'metal']) {
+        const j = ppJitter(seed, 8);
+        assert.ok(j >= -8 && j <= 8, `${seed} → ${j}`);
+    }
+    assert.notEqual(ppJitter('blues', 8), ppJitter('funk', 8));
+});
+
+test('detectNewBadges notifies once per badge, never after it is seen', () => {
+    const w = load();
+    const t = w.__careerPassportTest;
+    const view = {
+        instruments: {
+            guitar: {
+                passports: [
+                    { genre_key: 'blues', genre: 'Blues', badge: 'earned' },
+                    { genre_key: 'funk', genre: 'Funk', badge: 'in_progress' },
+                ],
+            },
+        },
+    };
+    t.detectNewBadges(view);
+    assert.equal(w.notifications.length, 1);
+    assert.match(w.notifications[0].message, /Blues/);
+    // Same view again in the same session: no duplicate notification.
+    t.detectNewBadges(view);
+    assert.equal(w.notifications.length, 1);
+    // Seen (slam played) → a fresh session stays quiet too.
+    t.markBadgeSeen('guitar', 'blues');
+    // JSON-compare: vm objects carry a foreign Object prototype.
+    assert.equal(JSON.stringify(t.seenBadges()), '{"guitar/blues":1}');
+
+    // Fresh session (new vm, empty notify cache) with the badge already seen:
+    // detection must stay silent.
+    const w2 = load({ 'feedBack-career-badges-seen': '{"guitar/blues":1}' });
+    w2.__careerPassportTest.detectNewBadges(view);
+    assert.equal(w2.notifications.length, 0);
+});
+
+test('seenBadges tolerates corrupt stored values', () => {
+    for (const bad of ['null', '[1,2]', '"x"', '{{{']) {
+        const w = load({ 'feedBack-career-badges-seen': bad });
+        const t = w.__careerPassportTest;
+        assert.equal(JSON.stringify(t.seenBadges()), '{}', `stored ${bad}`);
+        // And detection still works on top of the recovered empty state.
+        t.detectNewBadges({ instruments: { guitar: { passports: [
+            { genre_key: 'blues', genre: 'Blues', badge: 'earned' }] } } });
+        assert.equal(w.notifications.length, 1, `stored ${bad}`);
+    }
+});

plugins/career/venue-packs/bar/manifest.json

@@ -0,0 +1,18 @@
+{
+    "venue": "bar",
+    "version": 1,
+    "loops": {
+        "bored": "bored.mp4",
+        "neutral": "neutral.mp4",
+        "engaged": "engaged.mp4",
+        "ecstatic": "ecstatic.mp4"
+    },
+    "stingers": {
+        "clap": "clap.mp4",
+        "cheer": "cheer.mp4"
+    },
+    "intro": {
+        "video": "intro.mp4",
+        "audio": "bar-ambience.mp3"
+    }
+}

static/panes/pane-chip.js

@@ -0,0 +1,190 @@
+/*
+ * fee[dB]ack — the pop-out chip.
+ *
+ * One affordance, core-owned, identical everywhere: the small ⇱ button a plugin
+ * drops into the panel it already has.
+ *
+ *     feedBack.panes.register({ id: 'camera_director', title: 'Camera', element: () => panelEl });
+ *     feedBack.panes.attachChip(panelEl, 'camera_director');
+ *
+ * That is the entire adoption cost. Clicking the chip pops the panel out; a stub
+ * takes its place so the user can find it again; closing the pane brings the panel
+ * home and restores the chip. The plugin writes no show/hide logic — if it did,
+ * every plugin would invent a slightly different one, which is exactly the
+ * inconsistency this exists to prevent.
+ *
+ * The panel a chip is attached to is USUALLY the very element the pane moves into
+ * the pop-out window — so most of the time there is nothing here left to hide, and
+ * the job is simply to mark the hole it left. Hiding it would in fact be actively
+ * harmful: `.fb-pane-detached` is `display:none !important`, and it would travel
+ * with the node straight into the pane window and blank it.
+ *
+ * When the chip IS attached to something the pane didn't take (a wrapper, a
+ * launcher row), that element stays put and is hidden with `.fb-pane-detached` —
+ * a dedicated class, not `.hidden`/[hidden], because the panels we attach to
+ * already toggle those themselves.
+ */
+(function () {
+    'use strict';
+
+    const panes = window.feedBack && window.feedBack.panes;
+    if (!panes || typeof panes.register !== 'function') {
+        console.error('[panes] pane-manager.js must load before pane-chip.js');
+        return;
+    }
+
+    // paneId -> { el, chip, stub, spec }
+    const attached = new Map();
+
+    function _makeChip(spec) {
+        const b = document.createElement('button');
+        b.type = 'button';
+        b.className = 'fb-pane-chip';
+        b.title = 'Pop out';
+        b.setAttribute('aria-label', 'Pop out ' + spec.title);
+        b.textContent = '⇱';
+        b.addEventListener('click', (e) => {
+            // Rail popovers close on any document click that lands outside them
+            // (player-chrome.js). Without this the popover would close under the
+            // chip mid-click, which reads as the button not working.
+            e.stopPropagation();
+            e.preventDefault();
+            panes.detach(spec.id);
+        });
+        return b;
+    }
+
+    function _makeStub(spec) {
+        const s = document.createElement('button');
+        s.type = 'button';
+        s.className = 'fb-pane-stub';
+        s.setAttribute('aria-label', 'Bring ' + spec.title + ' back');
+        s.title = 'Bring it back';
+        const glyph = document.createElement('span');
+        glyph.className = 'fb-pane-stub-glyph';
+        glyph.textContent = '⇲';
+        const label = document.createElement('span');
+        label.textContent = spec.title + ' is popped out';
+        s.appendChild(glyph);
+        s.appendChild(label);
+        s.addEventListener('click', (e) => {
+            e.stopPropagation();
+            e.preventDefault();
+            panes.close(spec.id);
+        });
+        return s;
+    }
+
+    // The pane is out. Leave a stub where its panel used to be.
+    //
+    // The subtlety: the panel a chip is attached to is USUALLY the very element the
+    // pane moved into the pop-out window. It is no longer in this document at all —
+    // so hiding it would be worse than pointless (the `display:none` travels with
+    // the node and blanks the pane window, which is exactly the bug this fixes), and
+    // the stub cannot be inserted "before it", because it is not here to be before.
+    //
+    // Hence `home`: the manager tells us where the element used to live, and the
+    // stub goes there. If the chip is attached to something the pane did NOT take —
+    // a wrapper, a launcher row — that element is still here, and we hide it as
+    // before.
+    function _onOpened(rec, detail) {
+        // Did the pane take MY element?
+        //
+        // Ask the manager, which knows exactly what it handed to the host. Do not
+        // try to infer it from the element:
+        //
+        //   - `isConnected` says "still here" for a panel sitting in a pane window.
+        //     It IS connected — to that window.
+        //   - `ownerDocument` says "still here" for a panel moved into the DOCK,
+        //     which is in this very document. Hiding it there would blank a pane the
+        //     user is looking at.
+        //
+        // Both were live bugs. The manager's answer is the only one that holds for
+        // every host, and it works when reconciling after the fact (detail == null),
+        // which is what a plugin rebuilding its panel mid-pop-out triggers.
+        const takenEl = (detail && detail.el) || panes.elementOf(rec.spec.id);
+        const moved = takenEl === rec.el;
+
+        if (!moved && rec.el.isConnected) {
+            rec.el.classList.add('fb-pane-detached');
+            if (!rec.stub.isConnected && rec.el.parentNode) rec.el.parentNode.insertBefore(rec.stub, rec.el);
+            return;
+        }
+
+        // Mark the hole the element left. `home` comes with the event, or from the
+        // manager when we are reconciling after the fact.
+        const home = (detail && detail.home) || panes.homeOf(rec.spec.id);
+        if (!rec.stub.isConnected && home && home.parent && home.parent.isConnected) {
+            const next = (home.next && home.next.parentNode === home.parent) ? home.next : null;
+            home.parent.insertBefore(rec.stub, next);
+        }
+    }
+
+    function _onClosed(rec) {
+        // The element is back. Whatever we did to hide it, undo — including a class
+        // it might have carried out of the document and back.
+        rec.el.classList.remove('fb-pane-detached');
+        rec.stub.remove();
+    }
+
+    /**
+     * attachChip(el, paneId, opts)
+     *
+     * `el`   — the dialog to hide when the pane pops out. The chip is injected
+     *          into `el.querySelector('[data-pane-header]')` when present, else
+     *          prepended to `el` itself.
+     * `opts` — { header: Element } to place the chip somewhere specific.
+     *
+     * Returns a detach function that removes the chip and stub and restores the
+     * dialog — call it if your plugin tears its dialog down.
+     */
+    function attachChip(el, paneId, opts) {
+        opts = opts || {};
+        if (!(el instanceof Element)) throw new TypeError('panes.attachChip: el must be an Element');
+        // Validate here, not at the insertBefore below. This is a public plugin API,
+        // and a truthy non-Element `header` (a selector string, a jQuery-ish wrapper,
+        // a ref object) is an easy mistake to make — one that would otherwise surface
+        // as a confusing DOM exception from deep inside core.
+        if (opts.header != null && !(opts.header instanceof Element)) {
+            throw new TypeError('panes.attachChip(' + paneId + '): opts.header must be an Element');
+        }
+        const spec = panes.get(paneId);
+        if (!spec) { console.warn('[panes] attachChip: register the pane first:', paneId); return () => {}; }
+        if (attached.has(paneId)) { console.warn('[panes] attachChip: already attached:', paneId); return () => {}; }
+
+        const chip = _makeChip(spec);
+        const stub = _makeStub(spec);
+        const host = opts.header || el.querySelector('[data-pane-header]') || el;
+        if (host === el) host.insertBefore(chip, host.firstChild);
+        else host.appendChild(chip);
+
+        const rec = { el, chip, stub, spec };
+        attached.set(paneId, rec);
+
+        // Reconcile immediately: register() reopens a pane the user left open at
+        // last unload, and that can land before (or after) attachChip runs.
+        if (panes.isOpen(paneId)) _onOpened(rec, null);
+
+        return () => {
+            if (attached.get(paneId) !== rec) return;
+            attached.delete(paneId);
+            chip.remove();
+            _onClosed(rec);
+        };
+    }
+
+    // One pair of bus listeners for every chip, rather than one pair per chip.
+    const bus = window.feedBack;
+    if (bus && typeof bus.on === 'function') {
+        bus.on('panes:opened', (e) => {
+            const rec = attached.get(e.detail && e.detail.id);
+            if (rec) _onOpened(rec, e.detail);
+        });
+        bus.on('panes:closed', (e) => {
+            const rec = attached.get(e.detail && e.detail.id);
+            if (rec) _onClosed(rec);
+        });
+    }
+
+    window.feedBack.panes.attachChip = attachChip;
+})();

static/panes/pane-desktop.js

@@ -0,0 +1,47 @@
+/*
+ * fee[dB]ack — desktop upgrades for pane windows.
+ *
+ * In the desktop app a pane window is a real BrowserWindow: it remembers where you
+ * put it, it stays off the taskbar, it minimizes to the system tray, and the tray
+ * lists every pane you have.
+ *
+ * Note what this file does NOT do: it does not open the window, and it does not
+ * close it. That stays in pane-window-host.js, and it stays `window.open()` —
+ * because the pane's element is MOVED into that window's document, and a window
+ * the main process created for us would give this realm no handle to adopt into.
+ *
+ * Electron turns our same-origin `window.open()` into a real BrowserWindow anyway,
+ * and the main process recognises it by its frame name (`fbpane-<id>`) and takes
+ * over the OS-level behaviour from there. So the only thing left to say across IPC
+ * is "here are the panes that exist" — for the tray — and to listen for the tray
+ * saying "open that one".
+ *
+ * In a browser, or on an older desktop build, this file does nothing and pop-out
+ * works anyway. Everything here is an upgrade, not a dependency.
+ */
+(function () {
+    'use strict';
+
+    const panes = window.feedBack && window.feedBack.panes;
+    const bus = window.feedBack;
+    const desktop = window.feedBackDesktop && window.feedBackDesktop.panes;
+    if (!panes || !bus || !desktop) return;
+
+    // The tray asked to toggle a pane. Only this realm knows what that means — the
+    // pane might belong in the dock, and its element lives here.
+    desktop.onToggle((paneId) => {
+        if (panes.isOpen(paneId)) panes.close(paneId);
+        else panes.detach(paneId);
+    });
+
+    // Keep the tray's menu in step with the registry. Cheap and rare — panes are
+    // registered at load and toggled by hand, never on a playback path.
+    function sync() {
+        desktop.sync(panes.list().map((p) => ({ id: p.id, title: p.title, icon: p.icon, open: p.open })));
+    }
+    bus.on('panes:registered', sync);
+    bus.on('panes:unregistered', sync);
+    bus.on('panes:opened', sync);
+    bus.on('panes:closed', sync);
+    sync();
+})();

static/panes/pane-dock.js

@@ -0,0 +1,121 @@
+/*
+ * fee[dB]ack — pane dock (the in-window pane host).
+ *
+ * A right-edge stack of cards, one per open pane. Deliberately NOT a rail popover:
+ * the rail is exclusive (player-chrome.js's openPopFor closes the last one before
+ * opening the next), which is exactly why you cannot watch the mixer while riding
+ * the camera. Cards here coexist.
+ *
+ * As everywhere in this system, the card holds the plugin's REAL element — moved,
+ * not copied. The dock is a frame; the panel inside it is the panel.
+ *
+ * Song-switch survival is structural, not defended: #fb-pane-dock is a <body>
+ * child outside every .screen, so the per-song teardown never sees it.
+ *
+ * Registers as the `dock` host at priority 0 — the floor. Whatever else exists
+ * (an OS window), a pane can always land here, so opening one can never fail.
+ */
+(function () {
+    'use strict';
+
+    const panes = window.feedBack && window.feedBack.panes;
+    if (!panes || typeof panes.registerHost !== 'function') {
+        console.error('[panes] pane-manager.js must load before pane-dock.js');
+        return;
+    }
+
+    let dockEl = null;
+    const cards = new Map();   // paneId -> card element
+
+    function dock() {
+        if (dockEl && dockEl.isConnected) return dockEl;
+        dockEl = document.getElementById('fb-pane-dock');
+        if (!dockEl) {
+            dockEl = document.createElement('div');
+            dockEl.id = 'fb-pane-dock';
+            // `is-empty` from the start: panes.css hides an empty dock, and a dock
+            // born without the class is a visible-to-CSS, announced-to-screen-readers
+            // `role="region"` landmark with nothing in it until the first card
+            // arrives. Born empty, because it is.
+            dockEl.className = 'fb-pane-dock is-empty';
+            dockEl.setAttribute('role', 'region');
+            dockEl.setAttribute('aria-label', 'Panes');
+            document.body.appendChild(dockEl);
+        }
+        return dockEl;
+    }
+
+    function _syncEmpty() {
+        dock().classList.toggle('is-empty', cards.size === 0);
+    }
+
+    function place(spec, el) {
+        const card = document.createElement('section');
+        card.className = 'fb-pane-card';
+        card.dataset.paneId = spec.id;
+        card.setAttribute('aria-label', spec.title);
+
+        const head = document.createElement('header');
+        head.className = 'fb-pane-card-head';
+
+        const title = document.createElement('span');
+        title.className = 'fb-pane-card-title';
+        // textContent, not innerHTML — a pane title comes from a plugin.
+        title.textContent = spec.icon + ' ' + spec.title;
+
+        const close = document.createElement('button');
+        close.type = 'button';
+        close.className = 'fb-pane-card-btn';
+        close.setAttribute('aria-label', 'Close ' + spec.title);
+        close.title = 'Close';
+        close.textContent = '✕';
+        close.addEventListener('click', () => panes.close(spec.id));
+
+        head.appendChild(title);
+        head.appendChild(close);
+
+        const body = document.createElement('div');
+        body.className = 'fb-pane-card-body';
+
+        // Same neutralisation as the window host: the panel was a fixed overlay
+        // pinned to a corner of the app, and inside a card that positioning is
+        // nonsense. .fb-paned unpins it and nothing else.
+        el.classList.add('fb-paned');
+        body.appendChild(el);
+
+        card.appendChild(head);
+        card.appendChild(body);
+        dock().appendChild(card);
+        cards.set(spec.id, card);
+        _syncEmpty();
+    }
+
+    function unplace(id, el) {
+        // Hand the element back unmarked. The manager returns it to its home right
+        // after this, and it must arrive as the plugin left it — a panel that
+        // stayed .fb-paned would come back with its own positioning stripped.
+        if (el) el.classList.remove('fb-paned');
+        const card = cards.get(id);
+        if (card) card.remove();
+        cards.delete(id);
+        _syncEmpty();
+    }
+
+    function focus(id) {
+        const card = cards.get(id);
+        if (!card) return;
+        // Honour prefers-reduced-motion, as the flash animation below already does
+        // in panes.css. A smooth scroll is motion too, and a user who asked for less
+        // of it meant this as well.
+        const calm = window.matchMedia && window.matchMedia('(prefers-reduced-motion: reduce)').matches;
+        card.scrollIntoView({ block: 'nearest', behavior: calm ? 'auto' : 'smooth' });
+        // Re-trigger the flash even if the class is still there — repeat focus of
+        // the same card would otherwise be a no-op animation.
+        card.classList.remove('is-flash');
+        void card.offsetWidth;
+        card.classList.add('is-flash');
+        setTimeout(() => card.classList.remove('is-flash'), 700);
+    }
+
+    panes.registerHost({ id: 'dock', priority: 0, available: () => !!document.body, place, unplace, focus });
+})();

static/panes/pane-launcher.js

@@ -0,0 +1,71 @@
+/*
+ * fee[dB]ack — pane launcher (the "Panes" rail popover).
+ *
+ * A chip only works for a pane that already has a dialog to hide. Panes with no
+ * dialog — a readout, a plugin's optional extra — need somewhere to be opened
+ * from, so every registered pane gets one: a checkbox list in the rail.
+ *
+ * The rail popover is the right home for this precisely because it IS exclusive
+ * and transient. It's a menu, not a workspace; the panes it opens are the
+ * workspace, and they persist.
+ *
+ * Populated from the registry, so a plugin that calls panes.register() appears
+ * here with no further work. (The system tray will mirror this list.)
+ */
+(function () {
+    'use strict';
+
+    const panes = window.feedBack && window.feedBack.panes;
+    const bus = window.feedBack;
+    if (!panes || !bus || typeof bus.on !== 'function') return;
+
+    let listEl = null;
+
+    function render() {
+        if (!listEl || !listEl.isConnected) listEl = document.getElementById('v3-rail-panes-list');
+        if (!listEl) return;
+        const all = panes.list();
+
+        // Toggling a pane from this list fires panes:opened/closed, which re-renders
+        // the list — destroying the very button the user just pressed and dropping
+        // focus to <body>. Remember which one had it and give it back, so keyboard
+        // and screen-reader users can toggle several panes without losing their place.
+        const focusedId = (listEl.contains(document.activeElement) && document.activeElement.dataset)
+            ? document.activeElement.dataset.paneId : null;
+
+        listEl.replaceChildren();
+
+        if (!all.length) {
+            const empty = document.createElement('div');
+            empty.className = 'v3-pop-empty';
+            empty.textContent = 'No panes available.';
+            listEl.appendChild(empty);
+            return;
+        }
+
+        all.forEach((p) => {
+            const b = document.createElement('button');
+            b.type = 'button';
+            b.className = 'v3-pop-btn';
+            b.dataset.paneId = p.id;
+            b.setAttribute('aria-pressed', p.open ? 'true' : 'false');
+            b.textContent = (p.open ? '● ' : '○ ') + p.icon + ' ' + p.title;
+            b.addEventListener('click', (e) => {
+                e.stopPropagation();
+                if (panes.isOpen(p.id)) panes.close(p.id); else panes.detach(p.id);
+            });
+            listEl.appendChild(b);
+            if (p.id === focusedId) b.focus();
+        });
+    }
+
+    // The registry changes when plugins load and when panes open/close. Render is
+    // cheap and rare (never on a playback path), so just re-run it.
+    bus.on('panes:registered', render);
+    bus.on('panes:unregistered', render);
+    bus.on('panes:opened', render);
+    bus.on('panes:closed', render);
+
+    if (document.readyState !== 'complete') document.addEventListener('DOMContentLoaded', render);
+    else render();
+})();

static/panes/pane-manager.js

@@ -0,0 +1,381 @@
+/*
+ * fee[dB]ack — pane manager.
+ *
+ * The registry and host router behind `window.feedBack.panes`.
+ *
+ * A "pane" is a piece of UI a plugin already has — a mixer panel, a camera rig,
+ * a settings board — that the user can pop out into its own OS window and leave
+ * open: while they play, across song switches, on a second monitor, minimized to
+ * the tray.
+ *
+ * The whole design is one sentence: WE MOVE THE REAL ELEMENT.
+ *
+ * Not a copy of it, not a re-implementation of it in the pop-out window — the
+ * actual DOM node. Same-origin windows can adopt each other's nodes, and an
+ * adopted node keeps its event listeners and its closures. So the panel goes on
+ * running the plugin's own code, against the plugin's own state, in the plugin's
+ * own realm. It looks and behaves exactly like the thing that was popped out,
+ * because it IS the thing that was popped out.
+ *
+ * That is what makes the plugin's side of this two lines:
+ *
+ *     feedBack.panes.register({ id: 'camera_director', title: 'Camera', element: () => panelEl });
+ *     feedBack.panes.attachChip(panelEl, 'camera_director');
+ *
+ * No state mirroring, no cross-window RPC, no second copy of the UI to keep in
+ * step with the first. Those were all workarounds for a problem we simply do not
+ * have once the node itself moves.
+ *
+ * The manager owns which pane is open and where, and — crucially — where each
+ * pane's element CAME FROM, so docking it puts it back exactly where it was.
+ */
+(function () {
+    'use strict';
+
+    const HOSTS_KEY = 'fbPaneHosts';       // { paneId: hostId } — panes open at last unload
+
+    // id -> normalized spec
+    const specs = new Map();
+    // id -> { spec, hostId, el, home: { parent, next } }
+    const open = new Map();
+    // hostId -> host provider
+    const hosts = new Map();
+
+    // ── Persistence ──────────────────────────────────────────────────────────
+    // Only which pane was open, and where. A pane's CONTENTS are the plugin's own
+    // DOM and the plugin's own state — none of our business.
+
+    // A pane id is plugin-controlled and is used as a key in the persisted
+    // host map. `__proto__` and friends are not ids, they are booby traps: writing
+    // `map['__proto__'] = 'window'` on a plain object corrupts the map (and can
+    // reach Object.prototype), and reading `map[id]` can pick a value straight off
+    // the prototype chain for a pane that was never remembered at all.
+    //
+    // Rejected at registration, so the id never reaches storage — and the reads
+    // below are own-property checks anyway, because defence in depth is cheap here.
+    const UNSAFE_KEYS = ['__proto__', 'constructor', 'prototype'];
+    function _isUnsafeId(id) { return UNSAFE_KEYS.indexOf(id) >= 0; }
+
+    function _readJSON(key, fallback) {
+        try {
+            const raw = localStorage.getItem(key);
+            if (!raw) return fallback;
+            const parsed = JSON.parse(raw);
+            if (!parsed || typeof parsed !== 'object' || Array.isArray(parsed)) return fallback;
+            // Re-key onto a null-prototype object: whatever was in storage (hand
+            // edited, corrupt, polluted) can no longer smuggle in a prototype.
+            const safe = Object.create(null);
+            Object.keys(parsed).forEach((k) => { if (!_isUnsafeId(k)) safe[k] = parsed[k]; });
+            return safe;
+        } catch (e) { return fallback; }   // private mode / corrupt value
+    }
+    function _writeJSON(key, value) {
+        try { localStorage.setItem(key, JSON.stringify(value)); } catch (e) { /* quota / private mode: non-fatal */ }
+    }
+    function _rememberHost(id, hostId) {
+        if (_isUnsafeId(id)) return;
+        const map = _readJSON(HOSTS_KEY, Object.create(null));
+        if (hostId) map[id] = hostId; else delete map[id];
+        _writeJSON(HOSTS_KEY, map);
+    }
+    function _rememberedHost(id) {
+        const map = _readJSON(HOSTS_KEY, Object.create(null));
+        return Object.prototype.hasOwnProperty.call(map, id) ? map[id] : undefined;
+    }
+
+    // ── Spec ─────────────────────────────────────────────────────────────────
+
+    // A pane window's initial size. Plugin-controlled, and the window host builds
+    // window.open()'s feature string by concatenation — so this has to come out the
+    // other side as a number, not merely as something number-ish.
+    const MIN_PANE_PX = 120;
+    const MAX_PANE_PX = 4000;   // wider than any real display; a guard, not a policy
+    function _size(v, fallback) {
+        const n = Math.round(Number(v));
+        if (!Number.isFinite(n) || n <= 0) return fallback;
+        return Math.min(MAX_PANE_PX, Math.max(MIN_PANE_PX, n));
+    }
+
+    function _normalize(spec) {
+        if (!spec || typeof spec !== 'object') throw new TypeError('panes.register: spec must be an object');
+        if (!spec.id || typeof spec.id !== 'string') throw new TypeError('panes.register: spec.id is required');
+        // See UNSAFE_KEYS: a pane id becomes a key in the persisted host map.
+        if (_isUnsafeId(spec.id)) throw new TypeError('panes.register: unsafe pane id: ' + spec.id);
+        if (typeof spec.element !== 'function' && !(spec.element instanceof Element)) {
+            throw new TypeError('panes.register(' + spec.id + '): spec.element must be an Element, or a function returning one');
+        }
+        return {
+            id: spec.id,
+            title: spec.title || spec.id,
+            icon: spec.icon || '▣',
+            // Resolved lazily: a plugin often builds its panel on first use, so the
+            // element may not exist at registration time — and it may be rebuilt
+            // later (Camera Director rebuilds its panel on every mode change).
+            // Asking for it at open time means we always move the live one.
+            element: typeof spec.element === 'function' ? spec.element : () => spec.element,
+            // Coerced to real numbers, because these are plugin-controlled and the
+            // window host concatenates them into window.open()'s feature string. A
+            // `width` of '300,menubar=1' would not merely be an invalid size — it
+            // would inject window features. Anything that isn't a finite positive
+            // number falls back to the default, and absurd sizes are clamped rather
+            // than honoured.
+            width: _size(spec.width, 380),
+            height: _size(spec.height, 560),
+            defaultHost: spec.defaultHost || 'window',
+            // Called after the element lands in (or returns from) a pane window,
+            // for a plugin that needs to re-measure or re-anchor something.
+            onHost: typeof spec.onHost === 'function' ? spec.onHost : null,
+        };
+    }
+
+    // ── Host routing ─────────────────────────────────────────────────────────
+
+    function _resolveHost(preferred) {
+        const wanted = hosts.get(preferred);
+        if (wanted && wanted.available()) return wanted;
+        // Fall back to the best available host. The dock registers at priority 0
+        // and is always available, so a pane can never fail to open.
+        let best = null;
+        hosts.forEach((h) => {
+            if (!h.available()) return;
+            if (!best || h.priority > best.priority) best = h;
+        });
+        return best;
+    }
+
+    function _emit(name, detail) {
+        const bus = window.feedBack;
+        if (bus && typeof bus.emit === 'function') bus.emit(name, detail);
+    }
+
+    // ── Open / close ─────────────────────────────────────────────────────────
+
+    function openPane(id, opts) {
+        opts = opts || {};
+        const spec = specs.get(id);
+        if (!spec) { console.warn('[panes] open: no such pane:', id); return false; }
+        if (open.has(id)) { focusPane(id); return true; }
+
+        let el;
+        try { el = spec.element(); } catch (e) { el = null; }
+        if (!(el instanceof Element)) {
+            console.warn('[panes] open: pane has no element yet:', id);
+            return false;
+        }
+
+        const host = _resolveHost(opts.host || spec.defaultHost);
+        if (!host) { console.error('[panes] open: no host available for', id); return false; }
+
+        // Where the element lives right now, so docking can put it back EXACTLY
+        // there — same parent, same position among its siblings. Anything less and
+        // a docked panel reappears at the bottom of its container, or not at all.
+        const home = { parent: el.parentNode, next: el.nextSibling };
+
+        // An element on its way OUT of this document must not carry a class whose
+        // whole job is to hide it IN this document. `.fb-pane-detached` is
+        // `display:none !important`, and it travels with the node — straight into
+        // the pane window, which then renders nothing at all.
+        el.classList.remove('fb-pane-detached');
+
+        // Make it visible, and remember exactly how it wasn't.
+        //
+        // A plugin's panel is usually hidden until its launcher is clicked, and a
+        // pane can be opened from the tray or the rail without that ever happening.
+        // So we un-hide it — but only in the two ways a panel is actually hidden
+        // (`hidden`, or an inline `display:none`), and we put both back on dock.
+        //
+        // Note what we do NOT do: force a `display`. A panel that is `display:flex`
+        // must stay flex. Neutralising placement is one thing; silently re-laying
+        // out someone's panel is another.
+        const vis = { hidden: el.hidden, display: el.style.display };
+        el.hidden = false;
+        if (el.style.display === 'none') el.style.display = '';
+
+        try {
+            host.place(spec, el);
+        } catch (e) {
+            console.error('[panes] host', host.id, 'failed to take', id, e);
+            el.hidden = vis.hidden;
+            el.style.display = vis.display;
+            return false;
+        }
+
+        open.set(id, { spec, hostId: host.id, el, home, vis });
+        if (opts.remember !== false) _rememberHost(id, host.id);
+        if (spec.onHost) { try { spec.onHost(host.id, el); } catch (e) { console.error('[panes]', id, 'onHost threw', e); } }
+        // `home` rides along because the element has LEFT this document — anything
+        // that wants to mark the hole it left (the chip's stub) needs to know where
+        // the hole is, and can no longer ask the element itself.
+        _emit('panes:opened', { id: id, host: host.id, el: el, home: home });
+        return true;
+    }
+
+    function closePane(id, opts) {
+        opts = opts || {};
+        const entry = open.get(id);
+        if (!entry) return false;
+        open.delete(id);
+
+        // ORDER IS LOAD-BEARING: bring the element home BEFORE the host lets go of
+        // it. The host's unplace() closes the pane window, and closing a window
+        // tears down its document — with the element still inside it. The node
+        // survives (we hold a reference) but comes back stripped of its event
+        // listeners, so the panel returns looking perfect and completely dead: no
+        // buttons, no sliders, nothing.
+        //
+        // Adopt first, while the pane window is still alive, and the node moves out
+        // of a living document into a living document, which is the only case the
+        // DOM actually guarantees.
+        // ADOPT UNCONDITIONALLY, INSERT CONDITIONALLY. The rescue and the
+        // re-homing are two different jobs, and only one of them is allowed to
+        // fail.
+        //
+        // Adopting is what saves the element: it transfers ownership away from the
+        // pane window's document, so that document can be destroyed without taking
+        // the listeners with it. Do that FIRST, and always — even when there is
+        // nowhere to put the element afterwards.
+        //
+        // Re-homing can legitimately be impossible: the panel may never have had a
+        // parent (a plugin that builds it lazily and hands it straight to us), or
+        // its container may have been torn down while the pane was out (a screen
+        // change). Gating the adopt on a reachable home would mean that in exactly
+        // those cases we leave the element inside a window we are about to close —
+        // which is the "comes home dead" failure this whole ordering exists to
+        // prevent. It just moves it from the common path to the rare one, where it
+        // is far harder to spot.
+        //
+        // With no home, the element ends up owned by this document but not in it:
+        // detached, intact, listeners alive, and ready for the plugin to re-insert
+        // whenever it rebuilds its UI.
+        try {
+            // adoptNode, not appendChild: the node's owner is currently the pane
+            // window's document, and adopting is what transfers ownership back.
+            const node = document.adoptNode(entry.el);
+            const home = entry.home;
+            if (home && home.parent && home.parent.isConnected) {
+                if (home.next && home.next.parentNode === home.parent) home.parent.insertBefore(node, home.next);
+                else home.parent.appendChild(node);
+            } else {
+                console.warn('[panes]', id, 'has no home to return to — the element is detached but intact');
+            }
+        } catch (e) {
+            console.error('[panes] could not bring', id, 'back out of its pane window', e);
+        }
+
+        const host = hosts.get(entry.hostId);
+        try { if (host) host.unplace(id, entry.el); } catch (e) { console.error('[panes] host', entry.hostId, 'threw releasing', id, e); }
+
+        // Put its visibility back exactly as we found it. A panel that was closed
+        // when the pane was opened from the tray goes back to being closed; one that
+        // was open stays open. We forced it visible; we un-force it.
+        if (entry.vis) {
+            entry.el.hidden = entry.vis.hidden;
+            entry.el.style.display = entry.vis.display;
+        }
+
+        if (opts.remember !== false) _rememberHost(id, null);
+        if (entry.spec.onHost) { try { entry.spec.onHost(null, entry.el); } catch (e) { /* non-fatal */ } }
+        _emit('panes:closed', { id: id, host: entry.hostId });
+
+        return true;
+    }
+
+    function focusPane(id) {
+        const entry = open.get(id);
+        if (!entry) return false;
+        const host = hosts.get(entry.hostId);
+        if (host && typeof host.focus === 'function') host.focus(id);
+        return true;
+    }
+
+    // What the pop-out chip calls: put this pane wherever a pane most wants to
+    // live. That is a window if one can be had, and the dock otherwise.
+    function detach(id) {
+        const spec = specs.get(id);
+        return openPane(id, { host: (spec && spec.defaultHost) || 'window' });
+    }
+
+    function dock(id) {
+        if (open.has(id)) closePane(id, { remember: false });
+        return openPane(id, { host: 'dock' });
+    }
+
+    // ── Registry ─────────────────────────────────────────────────────────────
+
+    function register(spec) {
+        const s = _normalize(spec);
+        if (specs.has(s.id)) {
+            // First registration wins, matching libraryCardActions.register. A
+            // silent overwrite would swap the element out from under an open pane.
+            console.warn('[panes] pane already registered, ignoring:', s.id);
+            return () => {};
+        }
+        specs.set(s.id, s);
+        _emit('panes:registered', { id: s.id, title: s.title });
+
+        // Reopen where the user left it. Deferred a tick so a plugin can call
+        // register() and attachChip() back to back — the chip must exist before
+        // the pane opens, or it has nothing to hide.
+        //
+        // A host may refuse to be auto-restored: a browser blocks window.open()
+        // without a user gesture, so restoring a popped-out pane on page load
+        // would only ever produce a "pop-up blocked" toast. Such a pane comes back
+        // in the dock, and the chip pops it out again on the user's next click.
+        let remembered = _rememberedHost(s.id);
+        if (remembered) {
+            const h = hosts.get(remembered);
+            if (h && h.autoRestore === false) remembered = 'dock';
+            setTimeout(() => { if (specs.has(s.id) && !open.has(s.id)) openPane(s.id, { host: remembered, remember: false }); }, 0);
+        }
+
+        return () => unregister(s.id);
+    }
+
+    function unregister(id) {
+        if (open.has(id)) closePane(id, { remember: false });
+        specs.delete(id);
+        _emit('panes:unregistered', { id: id });
+    }
+
+    function registerHost(host) {
+        if (!host || !host.id) throw new TypeError('panes: host needs an id');
+        hosts.set(host.id, {
+            id: host.id,
+            priority: host.priority || 0,
+            autoRestore: host.autoRestore !== false,
+            available: typeof host.available === 'function' ? host.available : () => true,
+            place: host.place,
+            unplace: host.unplace,
+            focus: host.focus,
+        });
+    }
+
+    const api = {
+        version: 2,
+        register,
+        unregister,
+        open: openPane,
+        close: closePane,
+        detach,
+        dock,
+        focus: focusPane,
+        isOpen: (id) => open.has(id),
+        hostOf: (id) => { const e = open.get(id); return e ? e.hostId : null; },
+        // Where an open pane's element came from. The chip needs this to mark the
+        // hole the element left, since it can no longer ask the element itself.
+        homeOf: (id) => { const e = open.get(id); return e ? e.home : null; },
+        // The element a host actually took. The chip needs this to tell "the pane
+        // took MY element" from "the pane took something else" — and it cannot ask
+        // the element, which may now be in a dock card or another window entirely.
+        elementOf: (id) => { const e = open.get(id); return e ? e.el : null; },
+        get: (id) => specs.get(id) || null,
+        list: () => Array.from(specs.values()).map((s) => ({
+            id: s.id, title: s.title, icon: s.icon,
+            open: open.has(s.id), host: (open.get(s.id) || {}).hostId || null,
+        })),
+        registerHost,
+    };
+
+    window.feedBack = window.feedBack || {};
+    window.feedBack.panes = Object.assign(window.feedBack.panes || {}, api);
+})();

static/panes/pane-window-host.js

@@ -0,0 +1,355 @@
+/*
+ * fee[dB]ack — the pop-out window host.
+ *
+ * Opens a real OS window and MOVES THE PANE'S ELEMENT INTO IT.
+ *
+ * The move is the whole trick, and it works because the pane window is same-origin
+ * and opener-linked: `document.adoptNode()` re-parents a live node into another
+ * window's document, and an adopted node keeps its event listeners, its closures,
+ * and every reference anything else holds to it. So the plugin's panel goes on
+ * running the plugin's own code in the plugin's own realm — it is just being
+ * *displayed* somewhere else. It looks and behaves exactly like what was popped
+ * out, because it is exactly what was popped out.
+ *
+ * That is why this file must use `window.open()` and not ask the desktop's main
+ * process to make a BrowserWindow: a window we didn't open gives us no handle to
+ * its document, and without the handle there is nothing to adopt into.
+ *
+ * Electron turns this same-origin `window.open()` into a real BrowserWindow anyway
+ * — its setWindowOpenHandler answers same-origin URLs with `action: 'allow'` — and
+ * the main process then recognises the window by its frame name and gives it
+ * remembered bounds, skip-taskbar and a system-tray entry. So we get the OS window
+ * AND the DOM link. (That code lives in the separate desktop repo,
+ * got-feedback/feedBack-desktop: src/main/main.ts and src/main/pane-hosts.ts. It is
+ * not in this repo, and nothing here depends on it — in a plain browser this is
+ * simply a pop-up.)
+ *
+ * Styles come across too — the pane document starts empty, so we copy the app's
+ * stylesheets into it. Without that the panel would land unstyled, which is the
+ * one thing a "pop out exactly this" feature cannot do.
+ */
+(function () {
+    'use strict';
+
+    const panes = window.feedBack && window.feedBack.panes;
+    if (!panes || typeof panes.registerHost !== 'function') {
+        console.error('[panes] pane-manager.js must load before pane-window-host.js');
+        return;
+    }
+
+    // The frame name every pane window is opened with. In the desktop app the main
+    // process matches on this prefix to recognise a pane window and give it its
+    // remembered bounds, skip-taskbar and tray entry — so changing it here without
+    // changing it there silently downgrades every pane to a plain pop-up.
+    //
+    // The other half lives in a DIFFERENT REPO (got-feedback/feedBack-desktop,
+    // src/main/pane-hosts.ts). There is no build-time link between them; this comment
+    // is the link.
+    const FRAME_PREFIX = 'fbpane-';
+
+    const wins = new Map();   // paneId -> Window
+    let reaper = null;
+
+    // A pane window the user closed with the OS X button gets no reliable
+    // beforeunload (a crashed renderer certainly gets none). Poll `closed` and
+    // reap — otherwise the pane stays "open" forever, its chip stays stubbed out,
+    // and the element it holds is stranded in a dead document with no way back.
+    function _startReaper() {
+        if (reaper != null) return;
+        reaper = setInterval(() => {
+            wins.forEach((w, id) => { if (w.closed) panes.close(id); });
+            if (!wins.size) { clearInterval(reaper); reaper = null; }
+        }, 400);
+    }
+
+    // Give the pane document the app's styles, so the panel looks identical.
+    // Cloned rather than shared: a <link> node can only live in one document, and
+    // we are not about to steal the app's own stylesheet out of its head.
+    function _copyStyles(doc) {
+        // pane.html already links panes.css, so don't clone a second copy of it —
+        // duplicate sheets cost a redundant fetch and an extra style recalc for no
+        // change in appearance.
+        const own = Array.from(doc.querySelectorAll('link[rel="stylesheet"]'));
+        const have = new Set(own.map((l) => l.href));
+
+        // Insert the app's sheets BEFORE pane.html's own, not after.
+        //
+        // Cascade order is the whole game here. In the app document panes.css loads
+        // LAST, after tailwind/style/v3 — so its rules win ties. Appending the app's
+        // sheets into the pane document would put them after panes.css and silently
+        // invert that, letting core styles override the pane chrome and the .fb-paned
+        // placement rules. "Looks identical" has to include the order things are
+        // said in.
+        const anchor = own[0] || null;
+        document.querySelectorAll('link[rel="stylesheet"], style').forEach((node) => {
+            if (node.tagName === 'LINK' && have.has(node.href)) return;
+            try { doc.head.insertBefore(node.cloneNode(true), anchor); } catch (e) { /* skip a node we can't clone */ }
+        });
+        _syncChrome(doc);
+    }
+
+    // The theme/scale hooks the app hangs on <html> and <body>. v3 keys off these
+    // for its colour tokens and its interface scale, and a panel that lands without
+    // them renders in the wrong palette at the wrong size.
+    //
+    // MERGE, don't assign: pane.html sets `class="fb-pane-window"` on <html>, and
+    // panes.css hangs the pane window's own chrome off it. Overwriting the class
+    // list would take that with it and the window would lose its own layout — the
+    // app's classes and the pane document's are both wanted.
+    //
+    // Re-run on every theme/scale change for as long as the pane is open (see
+    // _followChrome). A one-time snapshot would leave an already-open pane rendering
+    // at the old scale the moment the user touched Interface size — "looks identical"
+    // has to keep being true, not merely start out true.
+    function _syncChrome(doc) {
+        try {
+            document.documentElement.classList.forEach((c) => doc.documentElement.classList.add(c));
+            document.body.classList.forEach((c) => doc.body.classList.add(c));
+            // The inline style on <html> carries the interface-scale custom property
+            // (--fb-scale). Assign it wholesale: unlike the class lists, pane.html
+            // sets no inline style of its own, so there is nothing here to preserve —
+            // and merging by concatenation would grow the attribute without bound as
+            // the user dragged the scale slider.
+            doc.documentElement.style.cssText = document.documentElement.style.cssText;
+        } catch (e) { /* the window may be closing under us */ }
+    }
+
+    // paneId -> stop following the app's theme/scale
+    const chromeFollowers = new Map();
+
+    function _followChrome(paneId, doc) {
+        const bus = window.feedBack;
+        if (!bus || typeof bus.on !== 'function') return;
+        const sync = () => _syncChrome(doc);
+        bus.on('scale:changed', sync);
+        bus.on('theme:changed', sync);
+        bus.on('v3:cosmetics-applied', sync);
+        chromeFollowers.set(paneId, () => {
+            bus.off('scale:changed', sync);
+            bus.off('theme:changed', sync);
+            bus.off('v3:cosmetics-applied', sync);
+        });
+    }
+
+    function _unfollowChrome(paneId) {
+        const off = chromeFollowers.get(paneId);
+        if (off) { off(); chromeFollowers.delete(paneId); }
+    }
+
+    // How long a "we cannot even see the pop-out's document" condition has to persist
+    // before we call it fatal. A SecurityError means the window is not reachable from
+    // this realm at all, and waiting cannot fix that — but we give it a moment anyway
+    // rather than bailing on the first tick, because a throw *during* the navigation
+    // from about:blank to /pane would otherwise take down a pop-out that was about to
+    // work perfectly. A second is far more than that transition needs, and far less
+    // than the 10s a user would otherwise stare at a detached panel for.
+    const UNREACHABLE_GRACE_MS = 1000;
+
+    // Wait for the REAL pane document.
+    //
+    // window.open() returns immediately, with an `about:blank` document that is
+    // already readyState 'complete'. Adopt into that and it works for a few
+    // milliseconds — and then /pane finishes loading, replaces the document, and
+    // takes the panel with it. The window is left blank and the element is gone.
+    //
+    // So we do not trust readyState, and we do not trust 'load' (which may have
+    // fired for about:blank before we could listen). We wait for the one thing that
+    // only exists in the document we actually want: pane.html's #fb-pane-root.
+
+    function _whenReady(w, onReady, onFail) {
+        const deadline = performance.now() + 10000;
+        let reachFailure = null;      // why we could never see the pop-out's document
+        let reachFailureAt = 0;       // when we first couldn't
+        const tick = () => {
+            if (w.closed) return;
+
+            let doc = null;
+            try { doc = w.document; }
+            catch (e) {
+                // A SecurityError here is the one that matters: it means the pop-out
+                // is not reachable from this realm at all (a separate process /
+                // browsing-context group), and no amount of waiting will fix it —
+                // adoptNode can never work.
+                doc = null;
+                if (!reachFailure) reachFailureAt = performance.now();
+                reachFailure = e;
+            }
+
+            // Unreachable, and it has stayed that way. Fail now rather than leaving
+            // the panel detached and the UI mid-pop-out for the full 10s deadline,
+            // when we already know this can never succeed.
+            if (reachFailure && !doc && performance.now() - reachFailureAt > UNREACHABLE_GRACE_MS) {
+                onFail(new Error('the pane window\'s document is NOT reachable from this window ('
+                    + reachFailure.name + ': ' + reachFailure.message
+                    + ') — it is in a separate process, so the element cannot be moved into it'));
+                return;
+            }
+
+            if (doc && doc.readyState !== 'loading') {
+                // Only ever adopt into the document we actually navigated TO.
+                // about:blank reports readyState 'complete' from the moment
+                // window.open() returns, and adopting into it means the panel is
+                // destroyed when /pane replaces it a moment later.
+                const href = (doc.location && doc.location.href) || '';
+                const isPaneDoc = href.indexOf('/pane') >= 0;
+                if (isPaneDoc) {
+                    // Prefer pane.html's own root, but never fail for want of it —
+                    // a stale cached copy of the page (or a future rename) must not
+                    // leave the user with a blank window and no panel.
+                    const root = doc.getElementById('fb-pane-root') || doc.body;
+                    if (root) { onReady(root); return; }
+                }
+            }
+
+            if (performance.now() > deadline) {
+                let why;
+                if (reachFailure) {
+                    why = 'the pane window\'s document is NOT reachable from this window ('
+                        + reachFailure.name + ': ' + reachFailure.message
+                        + ') — it is in a separate process, so the element cannot be moved into it';
+                } else if (!doc) {
+                    why = 'the pane window exposed no document at all';
+                } else {
+                    why = 'the pane window never loaded /pane (it is showing '
+                        + ((doc.location && doc.location.href) || 'an unknown URL')
+                        + ', readyState ' + doc.readyState + ')';
+                }
+                onFail(new Error(why));
+                return;
+            }
+            setTimeout(tick, 25);
+        };
+        tick();
+    }
+
+    function _adopt(w, root, spec, el) {
+        const doc = w.document;
+        _copyStyles(doc);
+        // The panel was almost certainly a fixed/absolute overlay pinned to a
+        // corner of the app. In a window of its own that positioning is nonsense —
+        // it would sit 72px from the top of a 380px window, still 288px wide, still
+        // casting a drop shadow over nothing. Neutralise the *placement* while
+        // touching nothing else about how it looks.
+        el.classList.add('fb-paned');
+        root.appendChild(doc.adoptNode(el));
+        doc.title = spec.title + ' — fee[dB]ack';
+
+        // Keep the pane window's theme and interface scale in step with the app for
+        // as long as it is open. Stopped in unplace().
+        _followChrome(spec.id, doc);
+
+        // THE ELEMENT MUST LEAVE BEFORE THE DOCUMENT DIES.
+        //
+        // When the user closes a pane window, its document is torn down — and the
+        // panel is inside it. The node itself survives (we hold a reference) and
+        // comes home looking perfect: right markup, right classes, right size. But
+        // it comes home DEAD: every event listener in the subtree is gone with the
+        // document that hosted them. A panel that renders and does nothing.
+        //
+        // The `closed` poll cannot save us: by the time `w.closed` is true, the
+        // document is already gone. `beforeunload` fires while it is still alive, so
+        // this is the last moment we can get the element out — and panes.close()
+        // adopts it back into the main document synchronously.
+        //
+        // We attach it HERE, not when the window was opened: back then the window
+        // still held its throwaway about:blank document, and a listener registered
+        // on that is discarded when /pane replaces it.
+        w.addEventListener('beforeunload', () => {
+            if (panes.isOpen(spec.id)) panes.close(spec.id);
+        });
+    }
+
+    function place(spec, el) {
+        const w = window.open(
+            window.location.origin + '/pane',
+            FRAME_PREFIX + spec.id,
+            'popup,width=' + spec.width + ',height=' + spec.height,
+        );
+
+        if (!w) {
+            // Popup blocked. Throw BEFORE the manager records anything, so the
+            // caller's panel stays exactly where it is — and say so out loud rather
+            // than appearing to do nothing.
+            if (window.fbNotify) {
+                window.fbNotify.show({
+                    title: 'Pop-out blocked',
+                    message: 'Allow pop-ups for this site to detach ' + spec.title + '.',
+                    icon: '⚠️', accent: '#f59e0b',
+                });
+            }
+            throw new Error('pop-up blocked');
+        }
+
+        wins.set(spec.id, w);
+        _startReaper();
+
+        // Take the element out of the document NOW, not when the window is ready.
+        //
+        // Everything below this line is async: the window has to load /pane before
+        // there is anything to adopt into. But the manager emits `panes:opened` as
+        // soon as we return, and the chip reacts by putting its "popped out" stub
+        // where the element used to be — so for that whole gap the user would see
+        // BOTH the real panel and a stub claiming it had left. On a window that
+        // never loads, that lasts the full 10s timeout.
+        //
+        // Detaching is not destructive: the node keeps its owner document (this
+        // one), its listeners and its closures. It is simply out of the tree,
+        // waiting — and if the window never loads, closePane() puts it straight
+        // back at its home.
+        el.remove();
+
+        _whenReady(w, (root) => {
+            try { _adopt(w, root, spec, el); }
+            catch (e) {
+                console.error('[panes] failed to move', spec.id, 'into its window', e);
+                panes.close(spec.id);   // brings the element home
+            }
+        }, (err) => {
+            console.error('[panes]', spec.id, err);
+            panes.close(spec.id);       // never strand the element in a dead window
+        });
+
+        // The pane window's 'beforeunload' listener is registered in _adopt(), NOT
+        // here: a listener added now would attach to the window's throwaway
+        // about:blank document and be discarded when /pane replaces it.
+    }
+
+    function unplace(id, el) {
+        _unfollowChrome(id);
+        // Hand the element back unmarked. The manager returns it to its home right
+        // after this, and it must arrive as the plugin left it — a panel that
+        // stayed .fb-paned would come back with its own positioning stripped.
+        if (el) el.classList.remove('fb-paned');
+        const w = wins.get(id);
+        wins.delete(id);
+        // The manager adopts the element back into this document immediately after
+        // this returns, so the window is empty by the time it closes.
+        if (w && !w.closed) { try { w.close(); } catch (e) { /* already gone */ } }
+    }
+
+    function focus(id) {
+        const w = wins.get(id);
+        if (w && !w.closed) { try { w.focus(); } catch (e) { /* the OS may refuse */ } }
+    }
+
+    // A BROWSER blocks window.open() outside a user gesture, so a pane remembered
+    // here cannot be restored on page load — it would only ever produce a "blocked"
+    // toast. Such a pane comes back in the dock, and the chip pops it out again on
+    // the user's next click. The DESKTOP app has no such restriction, so there a
+    // pane left popped out comes back popped out, where you left it.
+    const isDesktop = !!(window.feedBackDesktop && window.feedBackDesktop.panes);
+
+    panes.registerHost({
+        id: 'window',
+        priority: 10,
+        autoRestore: isDesktop,
+        place, unplace, focus,
+    });
+
+    // Our windows; they must not outlive us. A pane window whose opener is gone
+    // holds an element belonging to a dead document — there is nothing left to
+    // dock it back into.
+    window.addEventListener('beforeunload', () => {
+        wins.forEach((w) => { if (!w.closed) { try { w.close(); } catch (e) { /* ignore */ } } });
+    });
+})();

static/panes/pane.html

@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html lang="en" class="fb-pane-window">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>fee[dB]ack</title>
+    <link rel="icon" href="/static/assets/favicon.png">
+    <!-- Deliberately almost empty.
+
+         This document does not build a pane; it RECEIVES one. The opener moves the
+         real element in here with document.adoptNode() and copies the app's
+         stylesheets across, so the panel arrives complete — its own markup, its own
+         CSS, its own listeners, its own closures, still running the plugin's code
+         back in the main window.
+
+         So there is nothing to load, nothing to boot, and nothing to keep in step
+         with the app. Only panes.css, for the window chrome and the layout reset the
+         adopted element needs. -->
+    <link rel="stylesheet" href="/static/panes/panes.css">
+</head>
+<body>
+    <main id="fb-pane-root"></main>
+</body>
+</html>

static/panes/panes.css

@@ -0,0 +1,193 @@
+/* fee[dB]ack — detachable panes.
+ *
+ * Hand-authored (not Tailwind-scanned) so a runtime-installed plugin gets the chip
+ * and the dock without shipping its own stylesheet — the same reason .fb-selectable
+ * is hand-authored in core CSS.
+ *
+ * Z-index: the dock is a child of <body>, so it is NOT on the ladder from
+ * docs/plugin-v3-ui.md (transport 20, rail 30, popovers 40) — those numbers live
+ * *inside* #player's stacking context, and #player itself is `position:fixed;
+ * z-index:100` covering the viewport. A dock below 100 is invisible on the one
+ * screen panes exist for. Body-level ladder: #player 100 < dock 110 < toasts 120
+ * < modals 200.
+ */
+
+/* ── The popped-out element ──────────────────────────────────────────────────
+ *
+ * The single most important rule in this file.
+ *
+ * A plugin's panel is almost always a fixed overlay pinned to a corner of the app:
+ * `position:fixed; top:72px; right:18px; width:288px; z-index:99999`, with a drop
+ * shadow and a max-height sized against the viewport. Inside a dock card, or alone
+ * in a 320px window, every one of those is wrong — it would float 72px down from
+ * the top of its own window, still 288px wide, still casting a shadow over nothing.
+ *
+ * So we neutralise PLACEMENT and nothing else. Colours, borders, radius, padding,
+ * fonts, the panel's own internal layout: all untouched, because the whole promise
+ * of this feature is that what you popped out is what you get. */
+.fb-paned {
+    position: static !important;
+    inset: auto !important;
+    margin: 0 !important;
+    width: 100% !important;
+    max-width: none !important;
+    max-height: none !important;
+    z-index: auto !important;
+    box-shadow: none !important;
+    /* Deliberately NO `display` override. Forcing `display:block` would silently
+       re-lay-out a panel that is `display:flex` or `grid` — which is the opposite
+       of "placement only", and exactly the kind of surprise this feature exists to
+       avoid. Making a hidden panel visible is the manager's job (it clears the
+       element's `hidden`/inline `display:none` on open and restores them on dock),
+       and it does it without touching the panel's own display mode. */
+}
+
+/* ── The pop-out chip ────────────────────────────────────────────────────── */
+
+.fb-pane-chip {
+    flex: 0 0 auto;
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    width: 1.5rem;
+    height: 1.5rem;
+    border: 1px solid rgba(51, 65, 85, .7);
+    border-radius: .4rem;
+    background: rgba(30, 41, 59, .8);
+    color: #94a3b8;
+    font-size: .8rem;
+    line-height: 1;
+    cursor: pointer;
+    transition: color .15s, border-color .15s, background .15s;
+}
+.fb-pane-chip:hover {
+    color: #e2e8f0;
+    border-color: #4080e0;
+    background: rgba(64, 128, 224, .18);
+}
+.fb-pane-chip:focus-visible { outline: 2px solid #4080e0; outline-offset: 1px; }
+
+/* The panel, while its pane is popped out. A dedicated class rather than
+   .hidden/[hidden]: the panels we attach to toggle those themselves, and two owners
+   of one class is a bug waiting for a bad day. */
+.fb-pane-detached { display: none !important; }
+
+/* What the user sees in the panel's place. */
+.fb-pane-stub {
+    display: inline-flex;
+    align-items: center;
+    gap: .4rem;
+    padding: .35rem .6rem;
+    border: 1px dashed rgba(64, 128, 224, .55);
+    border-radius: .5rem;
+    background: rgba(64, 128, 224, .08);
+    color: #93b4e8;
+    font-size: .72rem;
+    cursor: pointer;
+    transition: background .15s, border-color .15s;
+}
+.fb-pane-stub:hover { background: rgba(64, 128, 224, .18); border-color: #4080e0; }
+.fb-pane-stub:focus-visible { outline: 2px solid #4080e0; outline-offset: 1px; }
+.fb-pane-stub-glyph { font-size: .85rem; }
+
+/* ── The dock ────────────────────────────────────────────────────────────── */
+
+.fb-pane-dock {
+    position: fixed;
+    top: 4.5rem;
+    right: 1rem;
+    bottom: 1rem;
+    z-index: 110;                       /* above #player (100), below toasts (120) */
+    width: 22rem;
+    max-width: calc(100vw - 2rem);
+    display: flex;
+    flex-direction: column;
+    gap: .6rem;
+    overflow-y: auto;
+    overflow-x: hidden;
+    /* A frame around cards, not a surface — the empty space below them must never
+       eat a click meant for the highway. */
+    pointer-events: none;
+    scrollbar-width: thin;
+}
+.fb-pane-dock.is-empty { display: none; }
+
+.fb-pane-card {
+    pointer-events: auto;
+    flex: 0 0 auto;
+    display: flex;
+    flex-direction: column;
+    background: rgba(15, 23, 42, .96);
+    border: 1px solid rgba(51, 65, 85, .6);
+    border-radius: .9rem;
+    box-shadow: 0 12px 40px rgba(0, 0, 0, .5);
+    overflow: hidden;
+}
+
+.fb-pane-card-head {
+    display: flex;
+    align-items: center;
+    gap: .5rem;
+    padding: .5rem .7rem;
+    border-bottom: 1px solid rgba(51, 65, 85, .5);
+    background: rgba(30, 41, 59, .6);
+}
+.fb-pane-card-title {
+    flex: 1 1 auto;
+    min-width: 0;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+    font-size: .78rem;
+    font-weight: 600;
+    color: #cbd5e1;
+}
+.fb-pane-card-btn {
+    flex: 0 0 auto;
+    width: 1.4rem;
+    height: 1.4rem;
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    border: 0;
+    border-radius: .35rem;
+    background: transparent;
+    color: #94a3b8;
+    font-size: .75rem;
+    line-height: 1;
+    cursor: pointer;
+}
+.fb-pane-card-btn:hover { background: rgba(51, 65, 85, .7); color: #e2e8f0; }
+.fb-pane-card-btn:focus-visible { outline: 2px solid #4080e0; outline-offset: 1px; }
+
+.fb-pane-card-body { overflow: auto; }
+
+/* focus(id) — a brief highlight, so re-opening an already-open pane says so
+   instead of appearing to do nothing. */
+.fb-pane-card.is-flash { animation: fb-pane-flash .7s ease-out; }
+@keyframes fb-pane-flash {
+    0%   { border-color: #4080e0; box-shadow: 0 0 0 3px rgba(64, 128, 224, .35), 0 12px 40px rgba(0, 0, 0, .5); }
+    100% { border-color: rgba(51, 65, 85, .6); box-shadow: 0 12px 40px rgba(0, 0, 0, .5); }
+}
+@media (prefers-reduced-motion: reduce) {
+    .fb-pane-card.is-flash { animation: none; }
+}
+
+/* ── The pop-out window (static/panes/pane.html) ─────────────────────────────
+ *
+ * The window's own chrome — everything INSIDE it is the adopted element, styled by
+ * the app's stylesheets, which the host copies into this document. */
+
+html.fb-pane-window,
+html.fb-pane-window body {
+    margin: 0;
+    padding: 0;
+    height: 100%;
+    background: #0f172a;
+}
+html.fb-pane-window body { display: flex; flex-direction: column; overflow: hidden; }
+#fb-pane-root {
+    flex: 1 1 auto;
+    overflow: auto;
+    padding: .6rem;
+}

static/v3/dashboard.js

@@ -33,7 +33,8 @@
     // Accuracy badge ramp (design/04-badges.md §C): ≥90% good, 50–89% mid, <50% low.
     function accuracyBadge(acc) {
         if (acc == null) return '';
-        const pct = Math.round(acc * 100);
+        // Floor, never round: 100% must mean every note hit.
+        const pct = Math.floor(acc * 100);
         const color = acc >= 0.9 ? 'bg-fb-good' : (acc >= 0.5 ? 'bg-fb-mid' : 'bg-fb-low');
         const text = acc >= 0.5 && acc < 0.9 ? 'text-black' : 'text-white';
         return '<span class="absolute bottom-0 right-0 ' + color + '/90 ' + text +

static/v3/index.html

@@ -99,6 +99,10 @@
     <link rel="stylesheet" href="/static/tour-engine.css">
     <!-- v0.3.0 shell styles (radial-gradient bg, custom scrollbars). -->
     <link rel="stylesheet" href="/static/v3/v3.css">
+    <!-- Detachable panes: the pop-out chip, the dock, and the widgets built-in
+         panes render with. Hand-authored (not Tailwind-scanned) so a
+         runtime-installed plugin can use the chip without shipping its own CSS. -->
+    <link rel="stylesheet" href="/static/panes/panes.css">
     <!-- EVERY external script below is `defer`. Do not add a plain one.
          `defer` and `type="module"` scripts share a single "execute after
          parsing" list and run in DOCUMENT ORDER; a plain classic script runs
@@ -1048,6 +1052,10 @@
                     <span class="v3-rail-border"></span>
                     <svg class="v3-rail-svg" viewBox="0 0 24 24" aria-hidden="true"><path d="M12,2A3,3 0 0,1 15,5V11A3,3 0 0,1 12,14A3,3 0 0,1 9,11V5A3,3 0 0,1 12,2M19,11C19,14.53 16.39,17.44 13,17.93V21H11V17.93C7.61,17.44 5,14.53 5,11H7A5,5 0 0,0 12,16A5,5 0 0,0 17,11H19Z"/></svg>
                 </button>
+                <button class="v3-rail-icon" type="button" data-rail="panes" aria-haspopup="true" aria-expanded="false" aria-controls="v3-rail-pop-panes" title="Panes" aria-label="Panes">
+                    <span class="v3-rail-border"></span>
+                    <svg class="v3-rail-svg" viewBox="0 0 24 24" aria-hidden="true"><path d="M19,4H5A2,2 0 0,0 3,6V18A2,2 0 0,0 5,20H19A2,2 0 0,0 21,18V6A2,2 0 0,0 19,4M13,18H5V6H13V18M19,18H15V6H19V18Z"/></svg>
+                </button>
                 <button class="v3-rail-icon" type="button" data-rail="plugins" aria-haspopup="true" aria-expanded="false" aria-controls="v3-rail-pop-plugins" title="Plugin controls" aria-label="Plugin controls">
                     <span class="v3-rail-border"></span>
                     <span class="v3-rail-badge" id="v3-plugin-count" hidden></span>
@@ -1064,6 +1072,15 @@
                  injects into #player-controls (the auto-hiding transport) into
                  this stable, always-reachable popover. See player-chrome.js
                  (rehoming MutationObserver). -->
+            <!-- Panes: open/close any registered detachable pane. Populated from
+                 the pane registry by static/panes/pane-launcher.js — a plugin
+                 that calls feedBack.panes.register() shows up here for free. -->
+            <div id="v3-rail-pop-panes" class="v3-rail-pop hidden" role="group" aria-label="Panes">
+                <div class="v3-pop-label">Panes</div>
+                <div id="v3-rail-panes-list" class="flex flex-col gap-1"></div>
+                <p class="text-xs text-gray-500 px-1 pb-1 leading-snug">Panes stay open while you play, and across song switches.</p>
+            </div>
+
             <div id="v3-rail-pop-plugins" class="v3-rail-pop hidden" role="group" aria-label="Plugin controls">
                 <div class="v3-pop-label">Plugin controls</div>
                 <div id="v3-plugin-controls-slot" class="v3-plugin-slot"></div>
@@ -1300,6 +1317,15 @@
     <script defer src="/static/v3/interface-size-nudge.js"></script>
     <script defer src="/static/v3/feedbarcade.js"></script>
     <script defer src="/static/v3/player-chrome.js"></script>
+    <!-- Detachable panes. The manager first; then the hosts, which register
+         themselves with it; then the chip and the launcher, which drive it.
+         pane-desktop only does anything inside the desktop app. -->
+    <script defer src="/static/panes/pane-manager.js"></script>
+    <script defer src="/static/panes/pane-dock.js"></script>
+    <script defer src="/static/panes/pane-window-host.js"></script>
+    <script defer src="/static/panes/pane-desktop.js"></script>
+    <script defer src="/static/panes/pane-chip.js"></script>
+    <script defer src="/static/panes/pane-launcher.js"></script>
     <script>
         // Navbar scroll effect
         window.addEventListener('scroll', () => {

static/v3/lessons.js

@@ -74,7 +74,7 @@
         if (st && st.passed) return '<span class="text-fb-good text-xs font-bold flex items-center gap-1">✓ Passed</span>';
         if (st && st.best_accuracy != null && st.best_accuracy > 0) {
             const acc = st.best_accuracy;
-            const pct = Math.round(acc * 100);
+            const pct = Math.floor(acc * 100);
             const color = acc >= 0.9 ? 'text-fb-good' : (acc >= 0.5 ? 'text-fb-mid' : 'text-fb-low');
             return '<span class="' + color + ' text-xs font-bold">' + pct + '%</span>';
         }

static/v3/live-performance-hud.js

@@ -21,7 +21,8 @@
     function accuracyPct(hits, misses) {
         const judged = hits + misses;
         if (judged <= 0) return null;
-        return Math.round((hits / Math.max(1, judged)) * 100);
+        // Floor, never round: 100% must mean every judged note was hit.
+        return Math.floor((hits / Math.max(1, judged)) * 100);
     }
 
     function calculateLivePerformanceState({ hits = 0, misses = 0, streak = 0, bestStreak = 0 } = {}) {

static/v3/playlists.js

@@ -73,7 +73,7 @@
             ? ' data-play-fn="' + esc(playFn) + '"' + (arrIdx != null ? ' data-play-arr="' + arrIdx + '"' : '')
             : '';
         const acc = (isAlbum && typeof opts.acc === 'number')
-            ? '<span class="text-xs font-bold shrink-0 ' + (opts.acc >= 0.9 ? 'text-fb-good' : opts.acc >= 0.5 ? 'text-fb-mid' : 'text-fb-low') + '">' + Math.round(opts.acc * 100) + '%</span>'
+            ? '<span class="text-xs font-bold shrink-0 ' + (opts.acc >= 0.9 ? 'text-fb-good' : opts.acc >= 0.5 ? 'text-fb-mid' : 'text-fb-low') + '">' + Math.floor(opts.acc * 100) + '%</span>'
             : '';
         const pin = (isAlbum && s.arrangement)
             ? '<span class="ml-2 text-[0.625rem] bg-fb-primary/20 text-fb-primary font-bold px-1.5 py-0.5 rounded-sm" title="Pinned arrangement">' + esc(s.arrangement) + '</span>' : '';

static/v3/profile.js

@@ -232,7 +232,7 @@
         host.innerHTML =
             '<ol class="space-y-2">' + rows.map((s, i) => {
                 const acc = Number(s.best_accuracy) || 0;
-                const pct = Math.round(acc * 100);
+                const pct = Math.floor(acc * 100);
                 const score = Number(s.best_score) || 0;
                 return '<li data-fn="' + esc(s.filename) + '" class="flex items-center gap-3 cursor-pointer rounded-md px-2 py-1.5 hover:bg-fb-card transition">' +
                     '<span class="w-5 text-center text-fb-textDim font-semibold shrink-0">' + (i + 1) + '</span>' +

static/v3/progress.js

@@ -265,7 +265,7 @@
         const onboarding = st.onboarding || {};
         if (onboarding.calibration_status === 'completed') return; // raced a 100% run
         const pending = onboarding.calibration_status === 'pending';
-        const pct = Math.max(0, Math.min(100, Math.round((detail.accuracy || 0) * 100)));
+        const pct = Math.max(0, Math.min(100, Math.floor((detail.accuracy || 0) * 100)));
 
         const overlay = document.createElement('div');
         overlay.id = 'v3-calibration-retry';

static/v3/songs.js

@@ -482,7 +482,8 @@
     function accuracyBadge(filename, variant) {
         const acc = state.accuracy[filename];
         if (acc == null) return '';
-        const pct = Math.round(acc * 100);
+        // Floor, never round: 100% must mean every note hit.
+        const pct = Math.floor(acc * 100);
         if (variant === 'tree') {
             const color = acc >= MASTERY_ACCURACY ? 'text-fb-good' : acc >= 0.5 ? 'text-fb-mid' : 'text-fb-low';
             return '<span class="fb-acc-badge text-xs font-bold ' + color + '">' + pct + '%</span>';
@@ -1312,7 +1313,7 @@
             c.year ? String(c.year) : '']
             .filter(Boolean).join(' · ');
         const acc = (typeof c.best_accuracy === 'number')
-            ? '<span class="font-bold ' + (c.best_accuracy >= MASTERY_ACCURACY ? 'text-fb-good' : c.best_accuracy >= 0.5 ? 'text-fb-mid' : 'text-fb-low') + '">' + Math.round(c.best_accuracy * 100) + '%</span>'
+            ? '<span class="font-bold ' + (c.best_accuracy >= MASTERY_ACCURACY ? 'text-fb-good' : c.best_accuracy >= 0.5 ? 'text-fb-mid' : 'text-fb-low') + '">' + Math.floor(c.best_accuracy * 100) + '%</span>'
             : '<span class="text-fb-textDim/60">not played</span>';
         return '<div role="radio" aria-checked="' + (checked ? 'true' : 'false') + '" tabindex="0" data-ch="' + esc(c.filename) + '"' +
             ' title="' + (checked ? esc(prefLabel) : 'Make this the preferred chart') + '"' +

tests/js/career_plugin.test.js

@@ -33,6 +33,24 @@ test('venues.json defines the 3 ascending tiers with star thresholds', () => {
     }
 });
 
+test('bar venue pack ships with intro media in the plugin checkout', () => {
+    const packDir = path.join(PLUGIN_DIR, 'venue-packs', 'bar');
+    const manifest = JSON.parse(fs.readFileSync(path.join(packDir, 'manifest.json'), 'utf8'));
+    assert.deepEqual(Object.keys(manifest.loops).sort(),
+        ['bored', 'ecstatic', 'engaged', 'neutral']);
+    assert.equal(manifest.intro.video, 'intro.mp4');
+    assert.equal(manifest.intro.audio, 'bar-ambience.mp3');
+    for (const f of [
+        ...Object.values(manifest.loops),
+        ...Object.values(manifest.stingers),
+        manifest.intro.video,
+        manifest.intro.audio,
+    ]) {
+        const stat = fs.statSync(path.join(packDir, f));
+        assert.ok(stat.size > 0, `${f} must be present`);
+    }
+});
+
 test('shell promotes the career plugin into the sidebar', () => {
     const src = fs.readFileSync(SHELL_JS, 'utf8');
     assert.match(src, /key: 'career',\s*screen: 'plugin-career'/);

tests/js/live_performance_hud.test.js

@@ -170,7 +170,8 @@ test('DOM text updates after hit and miss events', () => {
     runtime.onHit();
     runtime.onMiss();
 
-    assert.equal(els.percent.textContent, '67%');
+    // Floored, not rounded: 100% must mean every judged note was hit.
+    assert.equal(els.percent.textContent, '66%');
     assert.equal(els.hits.textContent, 'Hits 2 / 3');
     assert.equal(els.streak.textContent, 'Streak 0');
     assert.match(els.state.textContent, /Recovering/);

tests/plugins/career/conftest.py

@@ -1,3 +1,4 @@
+import json
 import sqlite3
 import sys
 from pathlib import Path
@@ -14,25 +15,45 @@ import routes as career_routes
 
 
 class FakeMetaDb:
-    """song_stats-only stand-in for MetadataDB (the plugin reads nothing else)."""
+    """song_stats/songs stand-in for MetadataDB (the plugin reads nothing else).
+
+    The real song_stats.arrangement is an INTEGER index into the song's
+    arrangements JSON; the legacy star tests pass strings ("guitar"), which
+    the passport code treats as index-less → instrument defaults to guitar."""
 
     def __init__(self):
         self.conn = sqlite3.connect(":memory:", check_same_thread=False)
         self.conn.execute(
             """CREATE TABLE song_stats (
-                   filename TEXT, arrangement TEXT, best_accuracy REAL
+                   filename TEXT, arrangement TEXT, best_accuracy REAL,
+                   last_played_at TEXT
+               )"""
+        )
+        self.conn.execute(
+            """CREATE TABLE songs (
+                   filename TEXT, title TEXT, artist TEXT,
+                   genre TEXT DEFAULT '', arrangements TEXT
                )"""
         )
-        self.conn.execute("CREATE TABLE songs (filename TEXT, title TEXT, artist TEXT)")
 
-    def add(self, filename, arrangement, best_accuracy, in_library=True):
-        self.conn.execute("INSERT INTO song_stats VALUES (?, ?, ?)",
-                          (filename, arrangement, best_accuracy))
+    def add(self, filename, arrangement, best_accuracy, in_library=True,
+            genre="", arrangements=None, last_played_at=None):
+        self.conn.execute("INSERT INTO song_stats VALUES (?, ?, ?, ?)",
+                          (filename, arrangement, best_accuracy, last_played_at))
         if in_library:
             self.conn.execute(
-                "INSERT INTO songs SELECT ?, ?, ? WHERE NOT EXISTS "
+                "INSERT INTO songs SELECT ?, ?, ?, ?, ? WHERE NOT EXISTS "
                 "(SELECT 1 FROM songs WHERE filename = ?)",
-                (filename, filename.replace(".feedpak", "").title(), "Test Artist", filename))
+                (filename, filename.replace(".feedpak", "").title(), "Test Artist",
+                 genre,
+                 json.dumps(arrangements) if arrangements is not None else None,
+                 filename))
+        self.conn.commit()
+
+    def add_song_only(self, filename, genre=""):
+        """A library song with no plays — feeds the genre (brochure) list."""
+        self.conn.execute("INSERT INTO songs VALUES (?, ?, ?, ?, ?)",
+                          (filename, filename, "Test Artist", genre, None))
         self.conn.commit()
 
 

tests/plugins/career/test_passports.py

@@ -0,0 +1,145 @@
+"""HTTP-level tests for the passport layer: badges, stubs, genres, drill intake.
+
+Badges are computed on read (never stored): N genre songs at min_stars — with
+stars ≥2 meaning best_accuracy ≥ 0.75 under the default 0.6/0.75/0.85
+thresholds — plus any configured virtuoso drills.
+"""
+
+import routes as career_routes
+
+LEAD = [{"type": "lead", "name": "Lead"}]
+BASS = [{"type": "bass", "name": "Bass"}]
+
+
+def _open(client, instrument="guitar", genre="Blues"):
+    res = client.post("/api/plugins/career/passports/open",
+                      json={"instrument": instrument, "genre": genre})
+    assert res.status_code == 200
+    return res.json()
+
+
+def _passport(client, instrument="guitar", genre_key="blues"):
+    view = client.get("/api/plugins/career/passports").json()
+    for p in view["instruments"][instrument]["passports"]:
+        if p["genre_key"] == genre_key:
+            return p
+    return None
+
+
+def test_badge_earned_at_five_genre_songs_two_stars(client, meta_db):
+    for i in range(5):
+        meta_db.add(f"blues{i}.feedpak", 0, 0.8, genre="Blues", arrangements=LEAD)
+    _open(client)
+    p = _passport(client)
+    assert p["badge"] == "earned"
+    assert p["qualifying_count"] == 5
+    assert all(s["qualifies"] and s["stars"] == 2 for s in p["songs"])
+
+
+def test_badge_in_progress_below_the_bar(client, meta_db):
+    for i in range(4):
+        meta_db.add(f"blues{i}.feedpak", 0, 0.8, genre="Blues", arrangements=LEAD)
+    meta_db.add("weak.feedpak", 0, 0.65, genre="Blues", arrangements=LEAD)  # 1★
+    _open(client)
+    p = _passport(client)
+    assert p["badge"] == "in_progress"
+    assert p["qualifying_count"] == 4
+    # Qualifying stubs sort ahead of the near-misses.
+    assert [s["qualifies"] for s in p["songs"]] == [True] * 4 + [False]
+
+
+def test_instruments_split_and_bass_is_shown_not_judged(client, meta_db):
+    # Same 5 songs but played on the BASS arrangement: no guitar badge credit.
+    for i in range(5):
+        meta_db.add(f"blues{i}.feedpak", 0, 0.9, genre="Blues", arrangements=BASS)
+    _open(client, "guitar")
+    _open(client, "bass")
+    guitar = _passport(client, "guitar")
+    bass = _passport(client, "bass")
+    assert guitar["qualifying_count"] == 0 and guitar["badge"] == "in_progress"
+    assert bass["qualifying_count"] == 5
+    # Bass isn't a graded instrument: repertoire shows, no pass/fail bar.
+    assert bass["badge"] == "shown_not_judged" and bass["graded"] is False
+
+
+def test_best_accuracy_per_instrument_across_arrangements(client, meta_db):
+    both = [{"type": "lead", "name": "Lead"}, {"type": "lead", "name": "Alt. Lead"}]
+    meta_db.add("song.feedpak", 0, 0.7, genre="Blues", arrangements=both)
+    meta_db.add("song.feedpak", 1, 0.9, genre="Blues", arrangements=both)
+    _open(client)
+    p = _passport(client)
+    assert len(p["songs"]) == 1
+    assert p["songs"][0]["best_accuracy"] == 0.9
+    assert p["songs"][0]["stars"] == 3
+
+
+def test_orphaned_songs_do_not_feed_stubs(client, meta_db):
+    meta_db.add("gone.feedpak", 0, 0.9, genre="Blues", arrangements=LEAD,
+                in_library=False)
+    _open(client)
+    assert _passport(client)["songs"] == []
+
+
+def test_genre_rack_collapses_case_and_skips_blank(client, meta_db):
+    meta_db.add_song_only("a.feedpak", genre="Blues")
+    meta_db.add_song_only("b.feedpak", genre="blues")
+    meta_db.add_song_only("c.feedpak", genre="Funk")
+    meta_db.add_song_only("d.feedpak", genre="")
+    genres = client.get("/api/plugins/career/passports").json()["genres"]
+    assert genres == [
+        {"genre_key": "blues", "genre": "Blues", "songs_in_library": 2},
+        {"genre_key": "funk", "genre": "Funk", "songs_in_library": 1},
+    ]
+
+
+def test_commit_is_idempotent_and_open_implies_commit(client):
+    first = client.post("/api/plugins/career/passports/commit",
+                        json={"instrument": "guitar"}).json()
+    again = client.post("/api/plugins/career/passports/commit",
+                        json={"instrument": "guitar"}).json()
+    assert first["committed_at"] == again["committed_at"]
+    _open(client, "bass", "Funk")
+    view = client.get("/api/plugins/career/passports").json()
+    assert view["instruments"]["bass"]["committed_at"]
+    # Re-opening the same passport keeps the original opened_at.
+    opened = view["instruments"]["bass"]["passports"][0]["opened_at"]
+    _open(client, "bass", "  funk ")  # normalizes to the same key
+    view = client.get("/api/plugins/career/passports").json()
+    assert [p["opened_at"] for p in view["instruments"]["bass"]["passports"]] == [opened]
+
+
+def test_open_and_commit_validation(client):
+    assert client.post("/api/plugins/career/passports/commit",
+                       json={"instrument": "theremin"}).status_code == 400
+    assert client.post("/api/plugins/career/passports/open",
+                       json={"instrument": "guitar", "genre": "  "}).status_code == 400
+    assert client.post("/api/plugins/career/passports/open",
+                       json={"instrument": "guitar", "genre": "x" * 65}).status_code == 400
+
+
+def test_drill_requirement_gates_badge_until_snapshot_clears_it(client, meta_db):
+    for i in range(5):
+        meta_db.add(f"blues{i}.feedpak", 0, 0.8, genre="Blues", arrangements=LEAD)
+    career_routes._state["passports_content"]["genres"]["blues"] = {
+        "virtuoso_nodes": ["node.shuffle"]}
+    _open(client)
+    p = _passport(client)
+    assert p["badge"] == "in_progress"
+    assert p["drills"] == {"required": ["node.shuffle"], "cleared": []}
+
+    res = client.post("/api/plugins/career/drill-state", json={
+        "mode": "casual", "xp": 120,
+        "byNode": {"node.shuffle": {"masteredAt": 1720000000,
+                                    "depth": {"travel": None}}}})
+    assert res.status_code == 200
+    p = _passport(client)
+    assert p["drills"]["cleared"] == ["node.shuffle"]
+    assert p["badge"] == "earned"
+
+
+def test_drill_state_validation(client):
+    assert client.post("/api/plugins/career/drill-state",
+                       json={"mode": "casual"}).status_code == 400
+    huge = {"byNode": {"pad": "x" * (300 * 1024)}}
+    assert client.post("/api/plugins/career/drill-state",
+                       json=huge).status_code == 413

tests/plugins/career/test_routes.py

@@ -76,7 +76,8 @@ def test_download_unknown_venue_404s(client):
 
 
 def test_download_without_published_pack_404s(client):
-    # venues.json ships pack: null until packs are released.
+    # Bundled packs are already installed; download still requires a published
+    # remote pack entry.
     assert client.post("/api/plugins/career/packs/bar/download").status_code == 404
 
 
@@ -86,28 +87,46 @@ def test_download_locked_venue_403s(client, monkeypatch):
     assert client.post("/api/plugins/career/packs/club/download").status_code == 403
 
 
-def test_pack_file_serving_and_traversal_guard(client):
-    _install_fake_pack("bar")
+def test_bundled_bar_pack_is_installed_and_served(client):
+    state = client.get("/api/plugins/career/state").json()
+    bar = {v["id"]: v for v in state["venues"]}["bar"]
+    assert bar["installed"] is True
+    assert bar["bundled"] is True
+    assert bar["has_pack"] is True
+
     ok = client.get("/api/plugins/career/venues/bar/manifest.json")
     assert ok.status_code == 200
+    manifest = ok.json()
+    assert manifest["loops"]["ecstatic"] == "ecstatic.mp4"
+    assert manifest["intro"] == {"video": "intro.mp4", "audio": "bar-ambience.mp3"}
+    assert client.get("/api/plugins/career/venues/bar/intro.mp4").status_code == 200
+    audio = client.get("/api/plugins/career/venues/bar/bar-ambience.mp3")
+    assert audio.status_code == 200
+    assert audio.headers["content-type"].startswith("audio/mpeg")
+
+
+def test_pack_file_serving_and_traversal_guard(client):
+    _install_fake_pack("club")
+    ok = client.get("/api/plugins/career/venues/club/manifest.json")
+    assert ok.status_code == 200
     assert ok.json()["loops"]["ecstatic"] == "ecstatic.mp4"
-    video = client.get("/api/plugins/career/venues/bar/bored.mp4")
+    video = client.get("/api/plugins/career/venues/club/bored.mp4")
     assert video.status_code == 200
     assert video.headers["content-type"].startswith("video/mp4")
     assert video.headers["x-content-type-options"] == "nosniff"
     # Traversal / junk shapes never resolve.
     for bad in ("../manifest.json", "..%2Fmanifest.json", "x.sh", "MANIFEST.JSON"):
-        assert client.get(f"/api/plugins/career/venues/bar/{bad}").status_code == 404
-    assert client.get("/api/plugins/career/venues/../bar/manifest.json").status_code == 404
+        assert client.get(f"/api/plugins/career/venues/club/{bad}").status_code == 404
+    assert client.get("/api/plugins/career/venues/../club/manifest.json").status_code == 404
 
 
 def test_state_reports_installed_and_delete_removes(client):
-    _install_fake_pack("bar")
+    _install_fake_pack("club")
     state = client.get("/api/plugins/career/state").json()
-    assert {v["id"]: v["installed"] for v in state["venues"]}["bar"] is True
-    assert client.delete("/api/plugins/career/packs/bar").status_code == 200
+    assert {v["id"]: v["installed"] for v in state["venues"]}["club"] is True
+    assert client.delete("/api/plugins/career/packs/club").status_code == 200
     state = client.get("/api/plugins/career/state").json()
-    assert {v["id"]: v["installed"] for v in state["venues"]}["bar"] is False
+    assert {v["id"]: v["installed"] for v in state["venues"]}["club"] is False
 
 
 def test_download_worker_end_to_end(client, tmp_path):