Commit Graph
87 Commits
Author SHA1 Message Date
d6f2df14f7 feat(server): add appstate.py, the router seam (R3) (#833)
* feat(server): add appstate.py, the router seam (R3)

Routes moving out of server.py need `meta_db` and friends, but must not
`import server` -- that goes circular the moment server imports them back.
server.py keeps CONSTRUCTING its singletons and now injects them once via
`appstate.configure(...)`; routers read them back as module attributes at call
time (`import appstate; appstate.meta_db`). The Python analogue of the frontend
refactor's `configureX({...})` seams and of the plugin `setup(app, context)`
contract: dependencies flow one way, server -> routers -> appstate.

Two properties are load-bearing, both pinned by tests/test_appstate.py:

1. `import appstate` constructs nothing and touches no disk. This is why the
   ~49 test fixtures that `sys.modules.pop("server")` + re-import (to rebuild
   meta_db under a patched CONFIG_DIR) keep working UNTOUCHED. A singleton
   owned by appstate would survive that pop and go stale -- verified.
2. Reads must be late-bound. `from appstate import meta_db` freezes the binding
   and defeats both a later configure() and monkeypatch.setattr -- the same
   read-only-binding trap as ES imports.

configure() raises on an unknown slot instead of silently creating a global
nothing reads, and the suite asserts server ACTUALLY calls it. Negative-checked:
dropping the configure() call fails exactly the two wiring tests while the other
five stay green -- those five are the false-green a seam test must not be.

The new suite imports server through an `isolated_server` fixture that patches
CONFIG_DIR to tmp_path and closes both DB connections on teardown. An unguarded
`import server` constructs MetadataDB + AudioEffectsMappingDB under the real
`~/.local/share/feedback` (reproduced: running the file alone created
web_library.db + audio_effects.db there). The full suite now leaves the real
config dir untouched.

Packaging: `COPY appstate.py /app/` plus a .dockerignore allowlist entry. That
file opens with a blanket `*` exclusion, so root-level Python must be re-allowed
explicitly -- without it the image build fails on the COPY. Verified against the
real docker daemon (build context reaches /app/appstate.py). docker-compose.yml
gains the dev bind-mount; docker-compose.nas.yml runs the baked image, so the
COPY covers it. `routers/` will need the same two entries when it lands.

Verified: pyflakes clean; pytest 2348 passed (2341 + 7 new); eslint 0 errors;
boot smoke serves /api/version, /api/library, /api/audio-effects/mappings, and
all three migrated plugins' src/ graphs, with `appstate.meta_db is server.meta_db`
asserted against the live import.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(appstate): address CodeRabbit — restore slots on teardown, really re-import

Two real findings on #833, both fixed:

(1) `isolated_server` closed server's DB connections but left `appstate.meta_db`
    and `appstate.audio_effect_mappings` published and pointing at the closed
    handles -- a live-looking, dead singleton for any later test. Teardown now
    snapshots and restores both slots.

(2) `test_reimporting_server_republishes_the_fresh_singletons` never performed a
    second import: it only re-asserted what `test_server_wires_the_seam` already
    covers, so it could not detect the very staleness it names. (I introduced
    that regression while fixing Codex's CONFIG_DIR isolation finding.) It now
    pops `server`, re-imports under a SECOND CONFIG_DIR, and asserts the seam
    republishes -- `second_server.meta_db is not first_db` and
    `appstate.meta_db is second_server.meta_db`.

Negative-checked both directions: simulating an appstate-OWNED singleton
(configure() only-first-wins) now fails the re-import test, and dropping
server's configure() call still fails exactly the two wiring tests.

NB CodeRabbit's committable suggestion inserted the snapshot above the
fixture docstring, which would have demoted it from __doc__; written by hand
instead.

pytest 2348 passed; the full suite leaves the real ~/.local/share/feedback
untouched.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-10 15:06:22 +02:00
94a58b7a42 refactor(server): extract AudioEffectsMappingDB into lib/audio_effects_db.py (R3) (#831)
Move-only, same shape as the MetadataDB extraction. The core-owned song/tone ->
audio-effect-provider routing index leaves server.py for a flat lib/ module.
The class body is byte-identical; server.py reconstructs exactly from
origin/main minus the cut range plus the import-back and the call site.

server.py: 9,705 -> 9,433 lines.

The only non-verbatim change is the constructor seam: `__init__` takes
`config_dir` instead of reading the module-level CONFIG_DIR, so the module does
no IO at import (Principle V). The `audio_effect_mappings` singleton stays in
server.py -- no route, no test, and none of the `monkeypatch.setattr(server, ...)`
targets move. No import went dead.

Verified: pyflakes clean on the new module; no new undefined name in server.py;
pytest 2341 passed; eslint 0 errors; boot smoke drives the extracted DB
end-to-end (POST a mapping -> GET reads it back -> audio_effects.db lands in
CONFIG_DIR, proving the config_dir seam) and all three migrated plugins still
serve their src/ module graphs.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-10 14:30:05 +02:00
58120745bc refactor(server): extract MetadataDB into lib/metadata_db.py (R3) (#830)
Move-only. The library metadata cache -- the `MetadataDB` class (4,018 lines)
plus the query helpers it owns (keyset paging cursors, the tuning grouping key,
smart-arrangement naming, tag normalisation, the startup DB-restore swap) --
moves out of server.py into a flat `lib/` module. Every moved block is
byte-identical to its server.py original; server.py is exactly origin/main
minus the six cut ranges, minus the now-dead `import contextlib`, plus the
import-back block and the constructor call site.

server.py: 14,037 -> 9,705 lines.

The one non-verbatim change is the seam that lets the class leave server.py:
`MetadataDB.__init__` now takes `config_dir` explicitly instead of reading the
module-level CONFIG_DIR, so `lib/metadata_db.py` does no IO at import
(Principle V). The `meta_db` singleton stays in server.py, so `server.meta_db`
(282 refs) and `server.app` (67 refs) resolve unchanged and no route moves.
None of the 114 `monkeypatch.setattr(server, ...)` targets moved.

Logging still goes through the `feedBack.server` logger, so log filters and
caplog assertions resolve to the same logger object.

`tests/test_settings_export_library_db.py` imports `_apply_pending_db_restore`
from metadata_db (the test moves with its subject); no other test changed.

Verified: pyflakes clean on the new module (zero undefined names, zero unused
imports) and no new undefined name in server.py; pytest 2341 passed;
node --test 1030 passed; eslint 0 errors; uvicorn boot smoke serves
/api/version, /api/library, and all three migrated plugins' src/ module graphs
(stems, studio, editor -> 200).

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-10 14:18:59 +02:00
Byron GamatosandGitHub 950e348357 R0: module-migration rails (src/ serving, live-edit cache, scriptType loading, governance) (#812)
ship-ci / ci (push) Has been cancelled
Host enablement for the plugin ES-module migration: sandboxed /api/plugins/{id}/src/ serving, no-cache+weak-ETag/304 live-edit caching on src/+screen.js+assets, scriptType:module loader injection + scriptType/minHost manifest passthrough; constitution v1.2.0 + module playbook + signed size-exemptions register + maintainer/CI-only ESLint gate; rerunnable perf-baseline harness. Reviewed by Codex (local), Copilot, and CodeRabbit.
2026-07-08 10:14:40 +02:00
a18a818e8b fix(playback): throttle legacy bridge-hit recording; emit loop-set for manual A/B (#811)
ship-ci / ci (push) Waiting to run
* fix(playback): throttle legacy bridge-hit recording; emit loop-set for manual A/B

window.feedBack.getLoop() is a read surface plugins legitimately poll
(note_detect HUD ticked it at ~30 Hz), but every call recorded a
playback.loop-api bridge hit: compat-shim bookkeeping, a
playback:bridge-hit event, and a diagnostics snapshot rebuild +
stringify per call — real main-thread cost and a saturated hitCount in
the capability inspector, even with no song playing.

- _recordPlaybackBridge now throttles per bridgeId|surface (5 s window).
  Bridge hits are a 'surface still in use' signal, not a call counter.
- setLoopEnd() (manual A/B buttons) now emits the same loop-set
  transport event as setLoop(), so event-driven consumers no longer
  need to poll getLoop() to see button-armed loops.

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

* docs(changelog): note loop-api bridge throttle fix

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

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-08 00:00:58 +02:00
5cb4ea0623 feat(drums): capture velocities alongside times in unmapped-percussion reporting (#808)
* feat(drums): capture velocities alongside times in unmapped-percussion reporting

Both drum converters opt-in out_unmapped capture (convert_drum_track_from_midi,
convert_drum_track_to_drumtab) gain an index-aligned `velocities` list next to
`times`, carrying each dropped note real dynamics — MIDI velocity verbatim; GP
velocity with the same 1-127 gate as mapped hits, falling back to the 100
import default. A hand-mapping UI (the editor unmapped-notes dialog) can then
restore mapped notes at their source dynamics instead of flattening to v:100
(editor-side consumer: feedBack-plugin-editor#111).

The GP path chronological sort now reorders times and velocities in LOCKSTEP
so multi-voice measures cannot silently reassign dynamics. Additive: callers
that ignore the new key are unaffected.

Tests: extended tests/test_midi_import_drums.py + tests/test_gp2rs_drums.py
(alignment, lockstep sort, out-of-range fallback) — 26 passing.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JEoFeTPSnz4NpwwCG52hnu

* docs(gp2rs): clarify velocity-default comment, mark dead-path fallback

- The mapped-GP velocity comment conflated GP's authoring default (95,
  Velocities.default) with the drumtab render default (100,
  DEFAULT_VELOCITY in lib/drums.py) used when `v` is omitted. Clarify
  both defaults and that only the latter applies to omitted hits.
- Mark the `else: times.sort()` fallback in the unmapped-percussion
  time/velocity sort as belt-and-suspenders — times and velocities are
  always appended together under the same len<100 guard, so lengths
  can't actually diverge.

No behavior change; comment-only maintainability nits from PR review.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: ChrisBeWithYou <chris@rifflarr.local>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Co-authored-by: byrongamatos <xasiklas@gmail.com>
2026-07-07 23:58:49 +02:00
fadaa154e9 feat(library): sort and badge by personal difficulty rating (#810)
* feat(library): sort and badge by personal difficulty rating

Adds sort=difficulty/difficulty-desc to the library API (correlated
subquery over song_user_meta.user_difficulty, unrated songs pushed to
the bottom either direction, same pattern as the existing mastery
sort) and surfaces the rating as a badge on library cards in both the
v2 grid/tree views and the v3 grid. The rating itself already existed
(song_user_meta) — this just makes it sortable and visible, so it's
no longer only readable in the per-song edit drawer.

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

* fix(library): escape difficulty badge, wire tree view, add changelog+tests

- Wrap song.user_difficulty in esc() at both badge call sites
  (static/app.js ~2082 and ~2283) for XSS-consistency with the
  sibling tuning badge, which already uses esc().
- server.py: query_artists (the classic tree view's data source, used
  by /api/library/artists) never batch-attached user_difficulty the
  way query_page does for the grid, so the tree-view difficulty badge
  added in 75673c3 was unreachable dead code (song.user_difficulty was
  always undefined there). Now attaches it via the existing
  user_meta_map() helper, same pattern as query_page.
- Add an [Unreleased] CHANGELOG.md entry for the difficulty sort +
  badge feature, matching the repo's existing entry format.
- Add tests/test_library_filters.py::test_difficulty_sort_pushes_unrated_to_bottom
  asserting unrated songs sort to the bottom in both sort=difficulty
  and sort=difficulty-desc directions, and
  ::test_tree_view_songs_carry_user_difficulty covering the
  query_artists fix above.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(library): chunk user_meta_map + rebuild stale tailwind css

Address review-bot findings on the difficulty sort/badge:
- user_meta_map now chunks filenames into 400-row batches (like
  overrides_map) before the IN (...) query. query_artists (tree view)
  passes every song across up to 50 artists, which could push the
  placeholder count past SQLite's older variable limit; query_page's
  small pages are unaffected. (CodeRabbit: Stability & Availability)
- Rebuild static/tailwind.min.css: the ◆N difficulty badge introduced
  bg-blue-900/30 + text-blue-300, which were never compiled into the
  committed stylesheet, failing the tailwind-fresh CI gate.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
Co-authored-by: byrongamatos <xasiklas@gmail.com>
2026-07-07 23:57:20 +02:00
LegionaryLeaderGitHubClaude Opus 4.8coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>byrongamatos
e446b05a99 feat(keys_highway_3d): key layout modes, lane-color opacity & octave lines (#803)
* feat(keys_highway_3d): sharp-layout modes, lane-color opacity, octave lines

Add a Highway layout section to the settings with a rebuilt way to draw
sharps/flats and lanes on the 3D piano highway:

- Sharps & flats layout (keys3d_bg_sharpMode): floating (original raised
  plane), flat (one plane, zero-overlap piano-shaped tiled lanes with the
  naturals evened out), and realistic (one plane, bars sized like the
  physical keys). All geometry lives in pure laneSpanFlat()/laneSpanReal()
  helpers. Default: realistic.
- Lane color opacity (keys3d_bg_laneOpacity, 0-1): fades the pitch-class
  lane tint; at 0 it is a dark floor with guide lines only at the key-block
  boundaries (E-F and each octave), toward 1 full vivid colored lanes. The
  strips, per-lane separators and block lines crossfade with the value.
  Default: 0.
- Octave separators (keys3d_bg_octaveGaps, default on) and Octave line
  contrast (keys3d_bg_octaveContrast, 0-1): the B->C octave line is a dark
  layer scaled by lane opacity plus a bright layer scaled by its inverse,
  so it auto-shifts dark->bright as the lanes fade.

Settings re-read on init() so they apply on the next chart build. All other
behavior (MIDI scoring, palettes, camera, themes, hit feedback) is unchanged.
Unit tests cover the new defaults, the sharp-mode setting, and the lane
geometry (tiling/evening for flat, uniform/overlap for realistic).

Signed-off-by: LegionaryLeader <legionaryleader@gmail.com>
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* Update plugins/keys_highway_3d/settings.html

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* Update plugins/keys_highway_3d/screen.js

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* fix(keys_highway_3d): don't trim active-range boundary lane when neighbor sharp is out of range

laneSpanFlat() trimmed a white key's edge for its neighboring black
key's lane even when that neighbor midi fell outside
range.activeLow..range.activeHigh — the neighbor's lane is never
drawn (see the activeLow/activeHigh skip around the lane-strip loop),
so the trim left a dark, unfilled sliver at the active-range boundary
with no sharp lane to fill it. Gate the trim on the neighbor being
in-range; callers that don't pass a range (e.g. the raw-tiling unit
tests) keep the prior unconditional-trim behavior.

Also add the CHANGELOG entry for this PR's feature set, following the
existing keys_highway_3d wording convention (no plugin-local
CHANGELOG exists; plugin.json was already bumped 0.1.2 -> 0.2.0 by
the original commits).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Signed-off-by: LegionaryLeader <legionaryleader@gmail.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
Co-authored-by: byrongamatos <xasiklas@gmail.com>
2026-07-07 23:57:14 +02:00
1bccb8a9e8 feat(midi): convert_midi_tempo_map — extract tempos, time signatures, beat grid (#796)
* feat(midi): convert_midi_tempo_map — extract tempos, time signatures, beat grid

The keys/drums MIDI converters always built a tempo-aware tick->seconds
map internally (to bake note times) and then discarded it — and never
read time_signature meta at all — so every MIDI import landed with no
bars, no measures, and an implied 4/4 no matter what the file said.

New lib/midi_import.py helper convert_midi_tempo_map(midi_path,
track_index) extracts the grid a .mid actually carries:

- tempos: {time, bpm} per tempo event (deduped per tick, 120 default)
- time_signatures: {time, ts: [num, den]} — the song-timeline shape
- beats: one row per beat on the editor grid shape — numbered downbeats
  with a den hint, measure:-1 interior beats; the beat unit follows the
  active signature (6/8 = six eighth-note rows per bar)

Event scope mirrors _build_tick_to_seconds: SMF type 0/1 merge meta
from all tracks, type 2 reads ONLY the chosen track (independent
timelines — callers must never share one grid across type-2 tracks).
Mid-bar signature events (ill-formed but seen in the wild) apply at the
next bar boundary. All times compute from absolute ticks through the
cumulative tempo table and round once at emit — rounding error never
accumulates with song length. A bar-count safety valve guards malformed
files. Consumer: the editor's multitrack MIDI import (tempo-seed
dialog, feedBack-plugin-editor roadmap Phase 3).

Tests: tests/test_midi_tempo_map.py — 10 cases driving the REAL
function against real .mid files built with mido (no stubs): default
grid, tempo bends, 500-bar rounding-drift check, 4/4->3/4 and 6/8
signatures, mid-bar signature deferral, duplicate-tick last-wins,
type-2 meta isolation from a bogus sibling track, empty files, grid
coverage bounds. Full MIDI-adjacent suite green: 55 passed
(test_midi_tempo_map + test_midi_import + test_midi_import_drums +
test_gp2midi) under the project venv.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JEoFeTPSnz4NpwwCG52hnu

* fix(midi): make convert_midi_tempo_map robust — real division guard, symmetric tempo default, single-pass meta

- Push the ticks-per-beat fallback into _build_tick_to_seconds (the single
  place ticks route through), guarding on `> 0` so a division==0 (malformed)
  or negative SMPTE-division header no longer raises ZeroDivisionError or
  walks the beat grid into negative times. Mirror the guard at the
  convert_midi_tempo_map beat_ticks site. The local `or 480` was cosmetic
  before — the closure still divided by the raw division.
- Seed tempos_out with a 120 BPM row at time 0 when the first set_tempo
  lands after tick 0, symmetric with the (0, 4, 4) time-signature default,
  so the sidecar matches the grid the head of the song actually used.
- Collapse the duplicated meta_source/note_source lists into one
  source_tracks walked in a single pass (meta collection + end_tick).
- Fix a weak assert in test_mid_bar_signature_applies_at_the_next_boundary
  (operator-precedence `(A and B) or C`) to assert den == 4 outright.
- Add tests: non-positive division (0 + negative SMPTE), first tempo after
  start seeds 120@0, explicit SMF type-0 file, and the _TEMPO_MAP_MAX_BARS
  safety valve.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: ChrisBeWithYou <chris@rifflarr.local>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Co-authored-by: byrongamatos <xasiklas@gmail.com>
2026-07-07 10:27:17 +02:00
byrongamatosandClaude Opus 4.8 9fb63fd3b5 fix(tuner): anchor injectPlayerButton to a direct-child button (feedBack#800)
`injectPlayerButton()` anchored the injected Tuner button with
`controls.querySelector('button:last-child')`, which can match a NESTED
button that is not a direct child of `#player-controls`. `insertBefore(btn,
nestedButton)` then throws `NotFoundError` (the reference node must be a
direct child); since injection runs from the tuner's `screen:changed`
handler, the throw propagated out of the player-screen transition and
stalled its render. The v3 path was already safe (plugin-control slot);
only the classic anchor was bad.

Use `:scope > button:last-of-type` (direct child only) with a
`parentNode === controls` guard before insertBefore, falling back to
appendChild. Bump plugins/tuner 1.3.3 → 1.3.4.

Test: tests/plugins/tuner/js/inject_player_button.test.js — extracts the
real function and runs it over a faithful DOM model whose insertBefore
enforces the direct-child invariant; the nested-last-button case reproduces
the throw on the old anchor and passes on the new one (5 tests).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Signed-off-by: byrongamatos <xasiklas@gmail.com>
2026-07-07 09:54:06 +02:00
612b1f2e0d feat(v3): choose handedness in the instrument selector + onboarding (give lefties a break) (#793)
ship-ci / ci (push) Waiting to run
* feat(v3): add a handedness (left-handed) choice to the instrument selector + onboarding

Left-handed players could already mirror the highway, but only via a buried
Settings toggle they had to find AFTER setup -- so a lefty went through the tour,
the tuner and calibration all right-handed first (community callout).

Add a "Handedness: Right / Left" row to the v3 instrument badge popover, alongside
Instrument / Strings / Tuning (all player-orientation choices). It writes the same
lefty preference -- highway.setLefty when a live highway exists (flips it
immediately + persists), else the 'lefty' localStorage key the highway reads on
init -- and keeps the Settings "Left-handed" checkbox in sync. The first-run
tour's "Choose your instrument" step, which runs before the tuner/audio-
calibration steps, now calls it out so lefties flip it up front.

Frontend-only, additive. Full core JS suite green (938). Tests:
tests/js/badges_handedness.test.js.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UR2Cr7GEu3yMY7SrfxH6c1

* docs: split the spliced Handedness/Colorblind CHANGELOG entries

A rebase pasted the Handedness bullet over the Colorblind preset entry's bold
lead, merging two unrelated Added entries into one run-on bullet. Restore them
as two separate bullets.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-authored-by: byrongamatos <xasiklas@gmail.com>
2026-07-05 23:50:30 +02:00
1a8540935b fix(gp_autosync): slope-constrained DTW steps — stop path collapse on riff-based songs (#791)
librosa.sequence.dtw's default step sizes permit pure horizontal/vertical
moves; on songs whose chroma is self-similar for long stretches the flat
cost surface let the path collapse (minutes of score onto one audio frame),
so auto-sync produced monotonic-but-garbage sync points and the per-bar
warp imported charts badly out of sync while reporting success.

Use the standard music-sync step pattern [[1,1],[1,2],[2,1]] (local tempo
ratio bounded to 0.5x-2x), falling back to unconstrained steps if the
global length ratio makes it infeasible.

Validated on the reported song (138 BPM tab, YouTube audio): coarse points
now track 1:1, refine holds slopes 0.77-1.04, warped downbeats hit onset
peaks at 3.3x background energy.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-05 23:12:31 +02:00
b914612f9d fix(highway_3d): recover from WebGL context loss instead of crashing on alt-tab (#790)
Switching the active window / alt-tabbing away (most often on Windows) can
trigger a GPU context reset. The 3D highway's WebGL renderer had no
webglcontextlost handler, so a lost context was left to escalate into a
render-process crash -- matching the intermittent "randomly crashes when I
change windows" desktop reports.

The renderer now binds webglcontextlost/webglcontextrestored on its own WebGL
canvas (ren.domElement): the loss is preventDefault()'d so the browser keeps the
context restorable, draw() bails while the context is down so no GL work runs on
a dead context, and on restore the viewport is re-applied and rendering resumes
(Three re-uploads scene resources on the next frame). Listeners are removed in
teardown.

Root cause is a strong hypothesis -- the crash is intermittent and
unreproducible -- but the fix is low-risk and additive and closes a real gap:
there was no context-loss handling anywhere in the renderer.

plugins/highway_3d 3.31.2 -> 3.31.3. Tests:
tests/js/highway_3d_context_loss.test.js (source-contract, like the other
highway_* tests). The sibling keys_highway_3d / drum_highway_3d renderers share
the same gap -- follow-up in their repos.


Claude-Session: https://claude.ai/code/session_01UR2Cr7GEu3yMY7SrfxH6c1

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-05 22:20:32 +02:00
de002cdc24 feat(highway): add "Colorblind (deuteranope)" string-color preset (#788)
Adds a one-click preset to the shared "Highway String Colors" picker,
next to the existing Okabe-Ito "Colorblind-friendly" preset. Contributed
by a deuteranopic player who found the Okabe-Ito set still hard to
separate: it retunes the six main strings and keeps that set's 7/8-string
colors. Applies to both the 2D and 3D highways via the shared picker,
which writes the slot->hex map the renderers already consume.

Additive frontend-only change to HWC_PRESETS in static/app.js; the picker
UI and both highways pick it up automatically (the preset list is
generated from HWC_PRESETS and applied by id). All 20 highway
string-color JS tests pass; app.js syntax-checks clean.


Claude-Session: https://claude.ai/code/session_01UR2Cr7GEu3yMY7SrfxH6c1

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-05 21:13:13 +02:00
92dc321fdf feat(gp_autosync): piecewise time-warp helpers + refine_sync onset pass (#787)
* feat(gp_autosync): piecewise time-warp helpers + refine_sync onset pass

auto_sync computes per-bar sync points but consumers only ever applied the
scalar bar-1 audio_offset, so any tempo drift between the recording and the
tab's authored tempo accumulated over the song. Add the librosa-free helpers
needed to apply the full piecewise mapping:

- bar_start_times(gp_path): per-bar score times sharing auto_sync's axis
  (GPIF bar-resolution map, GP3/4/5 per-tick integration)
- build_warp_anchors(points, bar_starts): monotonic (score, audio) anchors
- warp_time(t, anchors): piecewise-linear map with edge-slope extrapolation
- warp_song_times(song, warp): retime a lib.song.Song in place (notes,
  sustains, chords, beats, sections, anchors, handshapes, phrase levels,
  tone changes, tempo overrides)
- gp_has_expandable_repeats(gp_path): detects GP3/4/5 repeat/volta/direction
  markup whose playback expansion auto_sync's as-written points cannot map

Also implement refine_sync() — the editor's refine-sync endpoint has imported
it since the snapshot but it never existed in lib, so the Refine button 500'd.
It densifies the DTW points to every Nth bar and re-times each with a local
onset phase sweep (radius clamped under half a beat to avoid one-beat locks,
short scoring grid + median residual snap against the first beats). Synthetic
click-track validation: ~13ms mean / ~40ms max error from ±180ms coarse input
across 117-123 BPM recordings of a 120 BPM tab.

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

* review: Copilot round 1 — normalize bar_start_times GP3/4/5 parse failures to ValueError, document ImportError

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

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-05 20:08:19 +02:00
bde25c0bc8 fix(gpx): clamp partial final BCFS sector so GP6 .gpx import works (#749)
Every real Guitar Pro 6 (.gpx) file failed to import with
"GPX BCFS sector pointer out of range (malformed file)".

A real .gpx's BCFZ-declared decompressed size isn't 0x1000-aligned, so
its last (small) container file lands in a partial trailing sector.
_parse_bcfs raised whenever a sector read would run past the buffer
end, rejecting the whole container before score.gpif could be extracted
-- so no GP6 file could be charted in the song editor. (GP7/GP8 .gp
files take the ZIP path, not BCFS, which is why this wasn't caught
earlier.)

Clamp the final sector read to the buffer end (the per-file size field
trims the padding anyway), matching canonical GPX readers (alphaTab /
PyGuitarPro). A sector whose start is past the end still raises, so the
malformed-file guard is preserved.

Verified against two real GP6 files -- both now unpack to valid GPIF
with all tracks. Adds the previously-missing positive BCFS round-trip
coverage: partial-final-sector, multi-file, sector-aligned baseline,
and the preserved out-of-range guard.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-authored-by: byrongamatos <xasiklas@gmail.com>
2026-07-05 00:20:31 +02:00
c7aa5a10b0 fix(v3): recycle library grid cards on scroll instead of rebuilding the window (#742)
The virtualized v3 Songs grid rebuilt its entire visible window
(grid.innerHTML = _renderCardsRange(...) + a full wireCards pass) every
time it slid by one row. Each row-boundary crossing was therefore a heavy
synchronous frame — reparse ~60 cards, re-attach hundreds of listeners,
reflow — that stalled the main thread and buffered held-arrow key-repeats,
flushing them in a burst. Testers saw the library "go super fast for a
second then slow down," skipping "every so many scrolls," up or down, at
the same spots each time. It hitched scrolling back up over already-loaded
songs too, because the cost was DOM teardown, not fetching.

renderWindow() now reconciles the window in place: it reuses the card
nodes that stay on-screen and builds only the row that enters/leaves
(~6 nodes per slide instead of ~60). Nodes are keyed by absolute index
(data-idx) with a real-vs-skeleton + select-mode signature (data-sig) so
hole-fills after a page fetch and select-mode toggles still rebuild
exactly the nodes that changed. wireCards()'s existing data-wired guard
then wires only the freshly-built nodes, so per-slide listener churn drops
with it. Everything keyed off data-fn (favorites, ⋮ menu, right-click,
selection, accuracy badges, A–Z rail) is unaffected.

Follow-up to the stage-2 virtualized grid (#636 item 3). Frontend-only.

Tests: tests/js/v3_songs_window_recycle.test.js — window stays [start,end)
contiguous and in-window node identity is reused across a down-then-up
scroll; select-mode toggle and a rail-seek jump rebuild correctly.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-authored-by: byrongamatos <xasiklas@gmail.com>
2026-07-05 00:19:46 +02:00
2c1c6f7eac fix(starter): sync _BUILTIN_STARTER_SOURCES with content/starter on disk (#775)
Two commits (delete beethoven-ode_to_joy, re-add The Adicts' Ode to Joy) never
updated _BUILTIN_STARTER_SOURCES: it still listed the deleted pack and omitted
the added one. The listed-but-missing file made the all-present gate never fire,
so NO starter content seeded on first run — and the on-disk-but-unlisted pack
would bundle as dead weight. Both starter-seed guard tests were red on main,
reddening ci/test on every core PR. Sync the manifest to disk.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-05 00:15:29 +02:00
OmikronApexandClaude Fable 5 425f72b33f feat(v3): playlist shuffle toggle
Crossing-arrows toggle next to Play all / Play album on the playlist
detail page. When on, playQueue.start Fisher-Yates-shuffles the queue
once at start — on a copy, so the stored playlist order is untouched —
swapping per-slot album arrangements in lockstep so each slot keeps its
pinned arrangement (#685 contract preserved). Prev-less queue semantics
are unchanged: auto-advance simply walks the shuffled order.

Preference is global, persisted as localStorage v3PlaylistShuffle.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-03 13:07:47 +02:00
7ef52cdd66 fix: Edit Metadata persists into .feedpak files (suffix gate predated the rename) (#725)
write_song_metadata dispatched zip-form packages on `suffix == ".sloppak"`
only, while core reads both suffixes everywhere else (sloppak.SONG_EXTS,
.feedpak being the current write extension). Editing a zip-form .feedpak's
title/artist/album/year therefore silently fell back to a DB-only update,
which looked fine until the next full library rescan re-derived metadata
from the file and reverted the edit — the exact failure this module exists
to prevent. Directory-form packages were unaffected (manifest-presence
dispatch, not suffix).

Gate on SONG_EXTS, add TestWriteSongMetadata regression coverage (both zip
suffixes, mixed-case suffix, directory form, unknown-suffix fallback), and
correct the stale scan_worker comment claiming .sloppak-suffix-only
detection (the code already accepts both via is_sloppak).


Claude-Session: https://claude.ai/code/session_01H1ZBEcZoJinde9ms5fAjwc

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-02 20:51:57 +02:00
4b6cbe8b11 Fix 3D drum/keys highways not resizing on fullscreen under splitscreen (#723)
The guitar/bass highway_3d renderer self-detects panel-canvas size changes
in its draw() loop and re-runs applySize() every frame, because the
splitscreen host overrides hw.resize and never calls renderer.resize().
The drum and keys highways lacked that fallback — they only re-framed when
the host explicitly called resize(w, h) — so their panels stayed framed for
the pre-fullscreen size while the guitar/bass panels adapted. Symptom: a
too-small, off-center highway in the drum/keys panels after maximizing a
split-screen session.

Port highway_3d's per-frame drift check into both draw() loops: re-apply on
backing-store change (canvas.width/height) AND on CSS-box drift
(clientWidth/clientHeight vs the last applied logical size, throttled to
every 10th frame). Track _lastHwW/_lastHwH + _appliedW/_appliedH per
instance and reset them in destroy() so a reused instance re-frames on the
next song.

plugins/drum_highway_3d -> 0.3.1, plugins/keys_highway_3d -> 0.1.1.
Tests: tests/js/drum_keys_highway_3d_resize_reframe.test.js.

Signed-off-by: Kris Anderson <topkoa@gmail.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-02 18:42:26 +02:00
15fabb62aa Fix v3 Songs A–Z rail: reliable taps, precise drag, hittable size (#653)
* Fix v3 Songs A–Z rail: reliable taps, precise drag, hittable size

Follow-up to #634. Three rail bugs reported on macOS + Windows (0.3.0,
2026-06-29 — =Scr4tch=, MajorMokoto):

- Taps often did nothing ("clicked O, nothing happened"). pointerdown
  calls setPointerCapture, after which the browser retargets the
  follow-up click to the rail container, so the click handler's
  closest('.v3-azrail-letter') resolved null and a plain tap (no
  pointermove) had no other path. Drive the jump from pointerdown
  itself; reduce the click handler to keyboard activation only
  (e.detail === 0, Enter/Space).

- A drag landed short of the release ("where you release isn't where
  you get sent"). Every letter crossed fired jumpToLetter with
  behavior:'smooth'; stacked smooth-scroll animations over the
  virtualized grid lagged and settled imprecisely. jumpToLetter now
  takes a smooth flag and scrolls instantly ('auto') while scrubbing,
  animating only discrete taps/keyboard jumps, so the grid tracks the
  finger and the release lands on the let-go letter.

- The rail was too small at 1440p and didn't scale. Letters were a
  fixed .62rem glued at right:2px (~13px-tall target). They now scale
  with the viewport (clamp(.72rem, 1.4vh, 1.05rem)), sit off the edge
  with taller/wider equal-width hit targets and a hover/active
  highlight so the scrub target is visible.

Keyboard arrow-nav and present-letter gating are unchanged. Tests:
tests/js/v3_az_rail.test.js gains pointerdown-seek, keyboard-only click
guard, and instant-vs-smooth assertions (809 JS tests; the 13
pre-existing unrelated failures are unchanged).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QbexxfTt8q2tAn436MqGWF

* fix(v3): ignore non-primary buttons on A–Z rail pointerdown (PR #653 review)

Right- or middle-clicking the A–Z rail (or a secondary multi-touch
pointer) no longer triggers a seek; only the primary tap/drag scrubs.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: byrongamatos <xasiklas@gmail.com>
2026-07-02 13:59:10 +02:00
0d28886d46 Fix v3 Songs List View favorite heart staying dim until re-search (#654)
Favoriting from the tree / "List View" flipped the glyph ♡→♥ but the
heart stayed grey until a re-search — reported macOS+Windows, open since
0.3.0 / 2026-06-25.

One shared wireCards() [data-fav] handler serves both the grid card and
the List-View row, but they render with different idle colours (grid
text-white, List View text-fb-textDim) and the handler only ever removed
the grid's text-white. So in List View text-fb-textDim lingered next to
the freshly-added text-fb-accent and won by CSS source order — the glyph
changed but the colour didn't, until a re-search re-rendered the row.

Each heart now declares its idle colour via a data-fav-idle attribute;
the handler swaps exactly that class (so only one colour class is ever
present) and writes the new state back onto the in-memory song model so a
re-render / virtualized-grid recycle agrees instead of reverting.

Tests: tests/js/v3_favorites_toggle.test.js. Full JS suite 810 tests; the
13 pre-existing unrelated failures are unchanged.


Claude-Session: https://claude.ai/code/session_01QbexxfTt8q2tAn436MqGWF

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-02 13:58:21 +02:00
d20b33348b feat(v3): host theme read surface — window.feedBack.theme + always-present --fbv-* tokens (#646)
First slice of the host theme contract (#644): give plugins a host-owned way to
read the active theme + its device affordances, so a feature renders correctly
under any theme instead of binding to whichever one the dev saw.

theme-core.js previously only APPLIED themes and emitted --fbv-* vars only while
a theme was equipped (nothing to read in the default state), with no read API.
Now, all additive + feature-detected:

- Always-present default `fb` palette as `--fbv-*` on :root (the un-themed look
  is unchanged — fb-* utilities still use their compiled defaults; this only
  hands plugins a stable host token to read + derive surfaces from). Adds two
  keystone ROLES the palette lacked: `on-accent` (legible fg on the accent fill)
  and `focus-ring`.
- window.feedBack.theme.get() -> {id, isThemed, tokens}; .capabilities() ->
  {glow, gradients, motion} (the device-affordance signal; recolor-only themes
  report defaults, a theme may opt out via `capabilities` in its payload, motion
  is reduced-motion-gated); .prefersReducedMotion().
- Normalized `theme:changed` event from the single apply() chokepoint.

The apply side stays on window.v3Theme; the read surface is attached defensively
so it survives the feedBack bus being (re)built by capabilities.js regardless of
load order. Verified via a headless render (apply/unequip intact, defaults
present + restored, capability opt-out honored, event payload correct) +
tests/js/v3_theme_read_api.test.js. See docs/host-theme-contract.md.


Claude-Session: https://claude.ai/code/session_01QbexxfTt8q2tAn436MqGWF

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-02 13:57:58 +02:00
5e78f2f7f7 fix(tuner): remove unused settings + fix sidebar panel position (#661)
Removes the Floating Button and Tuning Visibility settings sections and finishes retiring their still-live config: drops the disabledTunings menu filter and showFloatingButton gate from screen.js/ui.js and their persistence in routes.py (retired keys are stripped on write). Repositions the tuner panel opened from the v3 sidebar Plugins popover to anchor beside it via the host's stable plugin-control slot API (falling back to the popover id), clamped to the viewport so it can't open off-screen, and re-anchored on resize. Updates tuner config tests to the retired-key behavior; plugins/tuner 1.3.2 -> 1.3.3.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-02 09:35:18 +02:00
3e2703d8e1 feat(keys_highway_3d): audio-reactive ambience + score FX overlay (K4) (#709)
- BG_STYLES port (off/particles/lights/geometric; lights use the
  pitch-class palette) mounted behind the scene; _bgGetAnalyser/
  _bgReadBands (stems-first, one-shot #audio fallback, permanent-failure
  latch); Ambience intensity + Audio-reactive settings; remounts on
  style/intensity change
- Score-FX overlay canvas (drum_highway_3d pattern): +1 pops at the
  scored key, ring pulse every 10-combo, milestone bursts at 25/50/100,
  red wash on 3+ streak break (wrong notes AND swept misses); cleared
  when idle, removed in teardown
- Tests: style id validation + FX defaults (30 total)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-02 09:06:12 +02:00
d409d55615 feat(drum_highway_3d): audio-reactive ambience + score FX overlay (D4) (#708)
- BG_STYLES port (off/particles/lights/geometric) into a renderOrder -1
  group; _bgGetAnalyser/_bgReadBands (stems-first, one-shot #audio
  fallback, permanent-failure latch, 5ms bands cache); Ambience
  intensity slider + Audio-reactive toggle; remounts on style/intensity/
  palette change and across kit-change scene rebuilds
- Score-FX overlay canvas (guitar drawScoreFx adapted to internal
  scoring): +1 pops at the struck lane, ring pulse every 10-combo,
  milestone bursts at 25/50/100, red wash on 3+ streak break; pooled,
  cleared when idle, removed in teardown
- butterchurn/image/video deliberately out of scope
- Tests: style id validation + FX defaults (15 total)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-02 09:01:56 +02:00
4214ef365e feat(drum_highway_3d): materials & themes — studio env map, metal cymbals, BG_THEMES, cinematic, glow/vibrancy (D3) (#712)
- _makeStudioEnv: procedural PMREM environment (no RoomEnvironment addon
  vendored) -> scene.environment; rebuilt on kit-change, disposed both
  teardown paths
- Cymbals roughness 0.2 / metalness 0.85 / envMapIntensity 1.2 (metal
  finally reads); discs satin 0.45 + envInt 0.5; floor 0.7 + envInt 0.35;
  hit bar envInt 1.0
- BG_THEMES port (guitar ids/values; drum 'default' = original palette
  byte-for-byte; single pick drives clear/fog + board + lane stripes);
  drumH3dSetTheme + drum_h3d_bg_theme; live _applyTheme
- Cinematic lighting toggle (0.3/1.2 on, 0.4/1.0 off = stock)
- Glow slider (base * glow*2; 0.5 default = stock) across notes/hit
  bar/snare stripe; Lane vibrancy slider (stripe base 0.12+0.24v +
  halo/ghost opacities), stacking under the D2 approach highlight
- Fixed pre-existing floor/hit-bar geometry+material leak on kit change
- Tests: theme table parity + default preservation + fallbacks (13)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-02 08:54:17 +02:00
80fc371f11 feat(keys_highway_3d): anti-plastic materials, studio env, themes, gradient sky, cinematic + glow (K3) (#711)
- Note gems -> MeshPhysicalMaterial: clearcoat 1.0/0.18, roughness 0.32,
  envMapIntensity 0.9 — lacquered glass, not plastic (the explicit ask)
- _makeStudioEnv (PORTED drum_highway_3d): PMREM studio -> scene.environment;
  black keys 0.22 roughness / 1.3 envInt (glossy piano black), whites
  0.42/0.55 ivory, floor 0.55/0.15/0.4 stage sheen
- Vertical-gradient background (light horizon -> theme clear -> dark deck),
  sRGB-tagged for the composer path
- BG_THEMES port (guitar ids/values; keys 'default' = original palette;
  themes drive gradient/fog/floor/rails, never the pitch-class colors);
  keys3dSetTheme + keys3d_bg_theme, live _applyTheme
- Cinematic lighting toggle (0.55/1.3 on; stock 0.75/1.1 off); Glow slider
  across NOTE_EMISSIVE_BASE / consume-flash / key approach-glow
- Env RT + gradient texture disposed in teardown
- Tests: theme table parity + default preservation (28 total)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-02 08:51:48 +02:00
95b0786725 feat(keys_highway_3d): hit FX — vibrancy, timing-colored sparks, hit-line kick (K2) (#699)
- Note vibrancy: gem opacity 0.8 -> slider-driven (default 0.92),
  NOTE_EMISSIVE_BASE 0.08 -> 0.22, lane guides scale with the slider,
  _applyVibrancy retints the live scene without a chart rebuild
- Sparks (PORTED highway_3d, pool 96) at the struck key, colored by
  _timingHex/_classifyTiming (±100ms window, inner 40% = on-time; delta
  recovered from judgeHit's noteKey prefix — contract untouched);
  streak-scaled counts
- Hit-line brightness kick on scored presses (exp(-t*6) decay, hitFx
  slider), folded into the existing pulse incl. the bloom damp gate
- Settings: Hit sparks / Timing colours / Streak feedback + Hit feedback
  intensity + Note vibrancy sliders (keys3d_bg_*, live-applying)
- Tests: classifier boundaries, noteKey time round-trip, FX defaults
  (26 total)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-02 08:45:09 +02:00
749af31cc3 fix: correctly import and notate multi-staff (piano/keys) tracks from GP8 (#692)
* fix: correctly import and notate multi-staff (piano/keys) tracks from GP8

Fixes bass stave being dropped on import (bar-column enumeration bug)
and wrong hand-split heuristic in notation_lift for chords straddling
middle C.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Signed-off-by: byrongamatos <xasiklas@gmail.com>

* fix(gp-import): fold all grand-staff staves, per-stave tuning, playable hand-splits

Addresses review on #692 (topkoa):

- split_hands: only use the middle-C boundary when both resulting hands are
  within HAND_SPLIT_SPAN_SEMITONES, else fall back to the largest-gap
  heuristic — a hard middle-C split otherwise put a 19-semitone (unplayable)
  span in one hand for bass-under-treble voicings (e.g. E2+B3 under an Em7
  shape).
- Treat any multi-stave (grand-staff) track as keys end-to-end, so the
  stave-0 and folded stave-1+ notes share one encoding and note_count (which
  sums every stave column) matches what actually imports — closing the
  phantom-count case for grand-staff instruments the name/program heuristics
  miss (harp, celesta, marimba).
- Fold *every* extra stave (stave_columns[1:]), not just stave 1.
- Per-staff tuning fall-back to the track-level Tuning property so an untuned
  staff never yields an empty pitch list (silent note loss); via a shared
  _parse_tuning helper.
- Extract _collect_column_notes / _merge_lh_notes so the GPX LH/RH pair merge
  and the GP8 grand-staff fold share one implementation and can't drift in
  tie/timing/dedup handling.
- Rebuild filtered_to_raw from the already-computed stave_columns (one source
  of truth for the counting rule) and drop the dead num_raw_tracks/raw_tracks.

Tests: grand-staff fold + bar-column offset (test_gp2notation.py); both
middle-C split cases (test_notation_lift.py). CHANGELOG updated.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Signed-off-by: byrongamatos <xasiklas@gmail.com>

---------

Signed-off-by: byrongamatos <xasiklas@gmail.com>
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
Co-authored-by: byrongamatos <xasiklas@gmail.com>
2026-07-02 08:40:20 +02:00
OmikronApexandGitHub 991eadeff6 Merge pull request #694 from got-feedback/perf/highway-frame-hotspots
perf: eliminate per-frame layout thrash, shader-compile spikes, and per-frame allocations in the player
2026-07-02 01:17:17 +02:00
56419dc789 feat(drum_highway_3d): hit FX — sparks, timing colors, lane flashes, kick pulse, open hi-hat (D2) (#697)
- Pooled spark bursts (PORTED highway_3d, pool 160) at the struck lane,
  timing-colored via _timingHex/_classifyTiming (±50ms window, inner 40%
  = on-time); streak-scaled counts (streakFx)
- Lane flashes resurrected as pooled additive gauss-tex quads at the hit
  line (timing-colored; red for wrong hits); kick = full-width quad
- Kick pulse: camera dip + amber floor wash, exp decay, hitFx-scaled
- Approach highlight: lane stripes brighten toward their next note
- Open hi-hat: hh_open renders a warm ring around the gem (closes TODO);
  orthogonal to accent/ghost/flam variants
- Settings: Hit sparks / Timing colours / Streak feedback toggles +
  Hit feedback intensity slider (drum_h3d_bg_*, live-applying)
- All FX resources pooled/shared, disposed in BOTH teardown paths
- Tests: _classifyTiming boundaries + FX defaults (10 total)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-02 01:07:50 +02:00
beefd7bc09 feat(keys_highway_3d): foundation for guitar-highway visual parity (K1) (#696)
- setPixelRatio at last: DPR (cap 2; 1.25 when >1 instance) x host
  adaptive bundle.renderScale — HiDPI displays were rendering at CSS
  resolution and upscaling (soft/aliased)
- Bloom: port _bloomEnsure/_bloomDispose (UnrealBloomPass 0.65/0.5/0.82,
  MSAA HalfFloat target, ACES<->None switch); hit-line, flames and
  consume-glow benefit immediately; direct render is the degrade path
- First settings panel: settings.html (graphics category) with a live
  Glow (bloom) toggle; FX scaffold (FX_DEFAULTS/readFxSettings/
  window.keys3dSetFx, keys3d_bg_* keys, keys3d:settings event)
- Combo/accuracy/best-streak DOM HUD (drum_highway_3d pattern), gated on
  a live MIDI session
- tests/fx_settings.test.js (3 tests; vm harness)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-02 00:53:12 +02:00
a7ea719652 feat(drum_highway_3d): foundation for guitar-highway visual parity (D1) (#695)
- Consume host adaptive-quality bundle.renderScale; fold into DPR like
  highway_3d (splitscreen proxy: >1 instance caps baseDPR at 1.25)
- Bloom: port _bloomEnsure/_bloomDispose (UnrealBloomPass 0.65/0.5/0.82,
  MSAA HalfFloat target, ACES<->None tone-mapping switch); rebuilt across
  the kit-change renderer recreation; direct render is the degrade path
- FX settings scaffold: FX_DEFAULTS + readFxSettings + drumH3dSetFx
  (drum_h3d_bg_* keys), Graphics section in settings.html (bloom toggle,
  default ON, live-applies)
- _applyLaneFlashes dead-code comment updated (visual consumer lands in
  the hit-FX PR)
- __test export + tests/data_layer.test.js (vm harness, 8 tests) —
  picked up by the CI glob from the bundling PR; README refreshed

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-02 00:52:48 +02:00
OmikronApexandClaude Fable 5 95cb51b2ad perf(highway_3d): forceSinglePass on transparent DoubleSide quads
The retrace after the label-swap fix showed getParameters unchanged
(~2.5s / ~4% throttled main thread) — the real driver is Three r158+'s
transparent-DoubleSide two-pass path: renderBufferDirect renders such
objects back side then front side, setting material.needsUpdate BOTH
times, i.e. a full getParameters/program-cache lookup twice per object
per frame, plus double draw calls. (Found by reading the two-pass
branch in the vendored three.module.min.js right next to the
getParameters call site.)

All 18 transparent DoubleSide materials in this renderer are flat
unlit quads — technique markers, sustain rails, chord frames, lane
planes, halo bars — where the two-pass self-occlusion ordering buys
nothing. Declare forceSinglePass: true on all of them.

Also corrects the _setLabelMap comment's churn attribution (that fix
removes the label-swap contribution; this one removes the dominant
source). Plugin 3.31.1 -> 3.31.2.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-02 00:48:52 +02:00
OmikronApexandClaude Fable 5 59aa70ce5a perf: remove throttled-trace residuals — program churn, per-frame rect, HUD clock
A 4x-CPU-throttled retrace (the honest weak-hardware proxy) surfaced
three residual per-frame costs; stack attribution pinned each:

- getParameters/getProgramCacheKey (~4% of main thread): every pooled
  label sprite map swap set material.needsUpdate, bumping
  material.version and forcing full program re-resolution next render.
  Swapping between two non-null cached textures never changes the
  compiled program (USE_MAP define unchanged) — new _setLabelMap()
  helper only flags needsUpdate on a null<->texture transition, used at
  all 7 swap sites.
- getBoundingClientRect (~1.2%): the 3D highway's per-frame canvas-size
  self-check forced a layout read every frame. The CSS-box drift read
  now runs every 10th frame (or when the wrap isn't pinned); the
  backing-store comparison stays per-frame with cheap property reads
  and forces an immediate box read + applySize when it fires.
- set textContent: the core 60 Hz HUD clock rewrote hud-time (and
  getElementById'd it) every tick for a display that changes 1/s — now
  write-on-change with a cached element ref.

(The remaining textContent writer in the trace is notedetect's
badges.js — external repo, to be filed there.)

tests/js: resize-reframe shape test updated for the hoisted _bsChanged
gate, incl. an assertion that the throttle can never delay the
backing-store path.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-02 00:40:52 +02:00
1e2d5a6162 Bundle drum_highway_3d + keys_highway_3d as in-tree core plugins (#693)
* Initial commit — clean relaunch

* Initial commit — clean relaunch

* Remove external game/format terminology from docs and code

Reword references to the external game and its proprietary file formats
in comments, docstrings, UI text and identifiers; no behaviour change.

* Repoint dead slopsmith URLs -> got-feedback

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(midi): consume core midi-input domain + session robustness fixes (#2)

* feat(midi): consume the core midi-input domain instead of private requestMIDIAccess (#881)

Route Web-MIDI device access through window.slopsmith.midiInput
(discover/list/select/open/close) rather than a private
navigator.requestMIDIAccess(). One shared device-access boundary with
piano/drums/onboarding; retires this plugin's private Web-MIDI. The
note-detection 'midi' exact-verdict provider role and the audio-input
source export are preserved (now backed by midi-input source data). Saved
pick ({id,name}) stays compatible — domain sourceId == the old MIDIInput.id.
Live listener is the domain handle's addListener/removeListener; the async
init/resume/pause gate and device-vanish handling are kept.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(midi): stop exporting MIDI into the audio-input domain

Keys MIDI now lives in the dedicated midi-input domain (#881). Continuing to
register pseudonymized 'midi-input-N' sources into audio-input polluted audio
device pickers — notably the onboarding guitar audio-input dropdown showed MIDI
devices under cryptic names. Unregister any leftovers and register none.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(midi): guard async connect races, denied-discovery latch, key consistency

Codex preflight findings on the midi-input consumption:
- Don't latch `_midiReady` when discover() resolves denied/unavailable — only
  on a handled outcome — so reopening retries the permission prompt.
- Add a generation guard to async `_midiConnect`: a slower open() from an
  earlier selection can resolve after a device/None switch and install a stale
  handle/listener. Discard (and close) superseded opens.
- Carry the domain `logicalSourceKey` on the source/selection descriptor and use
  it for select/open/close instead of synthesizing `web-midi::<id>`.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(midi): invalidate pending opens on detach; clear phantom selection; manifest

Codex re-review (round 2):
- A detach driven by device removal (sources-changed) didn't advance
  _midiConnectSeq, so a pending _midiConnect open could resume and install a
  handle/listener for a now-gone source. Bump the generation inside _midiDetach
  and capture myGen after it, so any later detach supersedes an in-flight open.
- If mi.open() yields no handle, _midiInput stayed set — a phantom connected
  device the render loop's miss-sweeping would penalize. Clear it on the
  no-handle and catch paths.
- plugin.json: replace the stale audio-input provider role (the removed
  MIDI-into-audio-input export bridge) with the midi-input requester it now uses.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(midi): make _midiResume idempotent under multiple live instances

Codex re-review (round 3): with the domain addListener API, a second live
renderer instance (splitscreen/overlapping lifetimes) calling _midiResume() while
already active could register the same listener again and double-deliver a MIDI
note to the focused instance (hit + duplicate misses). Return early when already
active rather than relying on the provider's Set-backed de-dup.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(midi): release domain session on teardown; counter-free legacy source cleanup

Codex re-review (round 4):
- [P2] Last-instance teardown only detached the listener and never released the
  midi-input domain session, leaking the requester ref. Add _midiReleaseSession()
  (delegates to _midiDetach: close + null + generation bump) at the destroy site;
  re-mount's _midiInit auto-connects from the saved pick.
- [P3] The legacy audio-input MIDI-source cleanup looped over the module-local
  _aiRegisteredCount, which resets to 0 on an in-page upgrade so the prior build's
  'keys-midi:input-N' entries were never unregistered. Iterate a fixed bound over
  the known sourceId pattern instead (unregister of an absent source is a no-op).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(midi): gate miss-sweep on live handle; don't open without a live renderer

Codex re-review (round 5):
- Miss-sweeping was gated on _midiInput, set as soon as a device is picked, but
  the async mi.open() may still be pending (slow / permission prompt) — notes
  passing during that window banked false misses. Gate on _midiHandle, truthy
  only after a handle is opened and wired.
- A settings-only ensure-init (or a discover resolving after the last instance
  was torn down) could open a midi-input session with no renderer to release it.
  Gate mi.open() on _instances.size > 0; the pick is saved and a later mount
  re-runs auto-connect.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(midi): guard open-failure clobber + don't clobber saved device on unplug

Bringing keys-highway-3d in line with the piano/drums hardening:
- The _midiConnect catch cleared _midiInput unconditionally; a stale older open's
  rejection could wipe a newer connect's _midiInput/_midiHandle (and leak the
  handle). Only clear when myGen === _midiConnectSeq.
- The sources-changed recovery called _midiAutoConnect(), whose fallback persists
  a substitute device — overwriting the user's saved pick on a transient
  multi-device unplug. Parameterize _midiAutoConnect(allowFallback); recovery
  passes false (reconnect the saved device only, never a persisted fallback).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(midi): keep first-hotplug working; don't tear down a live session on re-init

Codex round-11:
- The unplug-recovery _midiAutoConnect(false) skipped ALL fallbacks, which broke
  first-hotplug (open visualizer with no keyboard, plug one in → never picked →
  no connect). Skip the substitute only when a saved pick exists but is absent
  (preserve it); allow the fallback when nothing was ever picked.
- _midiInit re-ran _midiAutoConnect on every ready re-init (settings/splitscreen),
  tearing down the live handle + releasing held keys. Only re-connect when there's
  no live handle.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(midi): consume core midi-input domain + session robustness fixes (#2)

* feat(midi): consume the core midi-input domain instead of private requestMIDIAccess (#881)

Route Web-MIDI device access through window.slopsmith.midiInput
(discover/list/select/open/close) rather than a private
navigator.requestMIDIAccess(). One shared device-access boundary with
piano/drums/keys/onboarding. Saved pick ({id,name}, with legacy id-only
fallback) stays compatible — domain sourceId == the old MIDIInput.id. The
async in-flight init guard, _midiActive teardown gate, device-vanish handling,
and settings device APIs are preserved; the live listener is the domain
handle's addListener/removeListener. Degrades to no-MIDI when the domain
is absent.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(midi): guard async connect races, denied-discovery latch, key consistency

Codex preflight findings on the midi-input consumption:
- Don't latch `_midiReady` when discover() resolves denied/unavailable — only
  on a handled outcome — so reopening retries the permission prompt.
- Add a generation guard to async `_midiConnect`: a slower open() from an
  earlier selection can resolve after a device/None switch and install a stale
  handle/listener. Discard (and close) superseded opens.
- Carry the domain `logicalSourceKey` on the source/selection descriptor and use
  it for select/open/close instead of synthesizing `web-midi::<id>`.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(midi): invalidate pending opens on detach; clear phantom selection; manifest

Codex re-review (round 2):
- A detach driven by device removal (sources-changed) didn't advance
  _midiConnectSeq, so a pending _midiConnect open could resume and install a
  handle/listener for a now-gone source. Bump the generation inside _midiDetach
  and capture myGen after it, so any later detach supersedes an in-flight open.
- If mi.open() yields no handle, _midiInput stayed set — a phantom connected
  device the render loop's miss-sweeping would penalize. Clear it on the
  no-handle and catch paths.
- Declare the midi-input requester capability (degrade-noop) in plugin.json.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(midi): make _midiResume idempotent under multiple live instances

Proactively mirror the keys-highway-3d round-3 fix (same multi-instance lifecycle
and identical code): a second live renderer instance calling _midiResume() while
already active could double-register the listener and double-deliver a MIDI hit.
Return early when already active.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(midi): release the domain session on final teardown

Mirror the keys-highway-3d round-4 fix: last-instance teardown only detached the
listener and never released the midi-input domain session, leaking the requester
ref. Add _midiReleaseSession() (delegates to _midiDetach: close + null +
generation bump) at the destroy site; re-mount's _midiInit auto-connects.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(midi): gate miss-sweep on live handle; don't open without a live renderer

Codex re-review (round 5):
- [P2] drumH3dEnsureMidiInit (settings-only, no renderer) auto-connected and
  opened a midi-input session that destroy()/_midiReleaseSession would never run
  to release — held until reload. Gate mi.open() on _instances.size > 0; the pick
  is saved and a later renderer mount re-runs auto-connect.
- Mirror the keys-highway-3d miss-sweep fix: gate accumulation on _midiHandle
  (live wired session), not _midiInput (set before the async open resolves), so
  notes during a pending open don't bank false misses.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(midi): guard open-failure clobber + reconnect saved device on replug

Bringing drum-highway-3d in line with the piano/drums hardening:
- The _midiConnect catch cleared _midiInput unconditionally; a stale older open's
  rejection could wipe a newer connect's _midiInput/_midiHandle. Only clear when
  myGen === _midiConnectSeq.
- The sources-changed handler only refreshed the list (never reconnected), so a
  replug of the saved device didn't reattach. Reconnect on sources-changed via
  _midiAutoConnect(false) — saved device only, no fallback, so a transient unplug
  can't switch to / persist another input.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(midi): keep first-hotplug working; don't tear down a live session on re-init

Same two round-11 fixes as keys-highway-3d (shared structure): the recovery
_midiAutoConnect(false) now allows a fallback when nothing was ever picked
(first-hotplug) while still preserving a saved-but-absent pick; and _midiInit
only re-connects when there's no live handle.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(midi): select by logicalSourceKey, not provider-local sourceId (#4)

Codex review of the midi-input migration: resolving a selection with
find(s => s.id === id) treats the provider-local sourceId as globally unique,
so when the core midi-input domain aggregates multiple providers two devices
sharing a sourceId can't be distinguished — the wrong device opens and unplug
detection can miss that the selected key vanished.

Thread the globally-unique logicalSourceKey through save/read, _midiConnect,
auto-connect reconnect, the public keysH3dSetMidiInput entry, and the
capability _aiOpen path, preferring the key and keeping the bare sourceId /
name only as a legacy fallback. Mirrors the already-merged drums/piano
migration (_midiResolveSaved). Self-reviewed against that reference.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(midi): select by logicalSourceKey, not provider-local sourceId (#3)

Codex review of the midi-input migration (same issue as keys-highway-3d):
resolving a selection with find(s => s.id === id) treats the provider-local
sourceId as globally unique, so when the core midi-input domain aggregates
multiple providers two devices sharing a sourceId can't be distinguished —
the wrong device opens and unplug detection can miss the vanished key.

Thread the globally-unique logicalSourceKey through save/read, _midiConnect,
the auto-connect reconnect, and the public drumH3dSetMidiInput entry,
preferring the key with the bare sourceId / name only as a legacy fallback.
Mirrors the already-merged drums/piano migration. Self-reviewed.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* chore: add plugin metadata (category, description, thumbnail) (#5)

* chore: add plugin metadata (category/description/thumbnail)

Refs got-feedback/feedBack#571

* chore: add placeholder thumbnail

Refs got-feedback/feedBack#571

* chore: add plugin metadata (category, description, thumbnail) (#4)

* chore: add plugin metadata (category/description/thumbnail)

Refs got-feedback/feedBack#571

* chore: add placeholder thumbnail

Refs got-feedback/feedBack#571

* fix(viz): register feedBackViz_<id> so the player viz picker lists this plugin (#5)

After the slopsmith->feedBack rename the factory was still registered as
window.slopsmithViz_<id>; the host viz picker only looks up
window.feedBackViz_<id> (no slopsmithViz alias exists) and silently skipped
this plugin. Add the feedBackViz_ global (aliased to the existing
slopsmithViz_ one for back-compat).

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(viz): register feedBackViz_<id> so the player viz picker lists this plugin (#6)

After the slopsmith->feedBack rename the factory was still registered as
window.slopsmithViz_<id>; the host viz picker only looks up
window.feedBackViz_<id> (no slopsmithViz alias exists) and silently skipped
this plugin. Add the feedBackViz_ global (aliased to the existing
slopsmithViz_ one for back-compat).

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(plugins): bundle drum_highway_3d + keys_highway_3d as in-tree core plugins

Import both 3D highway plugins from their standalone repos via git subtree
(history preserved), ahead of the visual-parity epic that ports the guitar
highway's polish to them.

- .gitignore: !plugins/drum_highway_3d/ + !plugins/keys_highway_3d/ exceptions
- keys plugin.json: "bundled": true (drum already had it)
- CI: JS test step gains 'plugins/*/tests/*.test.js' (+20 keys tests)
- static/tailwind.min.css regenerated (core build scans plugins/**)

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

* fix(drum_highway_3d): narrow Auto-mode predicate so bundling can't steal guitar arrangements

has_drum_tab is pack-level; first-match-wins Auto order sorts this plugin
before highway_3d. Claim only drum arrangements, or packs nothing more
specific can render (Codex preflight P2).

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

* docs: CHANGELOG — note the deliberate Auto-predicate narrowing

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

* fix(drum_highway_3d): MIDI lifecycle — no false misses on mid-song connect, promote survivor on destroy

- _missSweepFloor exempts notes that passed before the device wired up
  from the miss sweep (lowered on seek-back; cleared with scoring resets)
- destroy() promotes a surviving instance to _activeInstance so
  splitscreen panel teardown doesn't drop all MIDI routing
  (Codex preflight round 2, both pre-existing in the imported code)

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

---------

Co-authored-by: Sin <deathlysin@outlook.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-02 00:25:31 +02:00
OmikronApexandClaude Fable 5 77547af110 perf: allocation/scan hardening for weaker hardware
Static-analysis follow-ups to the trace-backed fixes; each is cheap
insurance on machines where the profiled headroom doesn't exist.

- highway.js: _makeBundle now mutates one persistent per-instance
  object instead of allocating a fresh ~35-field bundle every rAF
  frame (xN under splitscreen). Object identity is stable and
  meaningless; array fields still swap reference on chart changes,
  which field-identity caches rely on. Contract documented in both
  CLAUDE.mds.
- highway.js: new bsearchTime (lower-bound on .time) windows the
  default 2D renderer's beat-line scan (was O(all beats) per frame);
  bundle.lowerBoundT / bundle.lowerBoundTime expose the searches to
  custom viz so they stop reimplementing visible-window culling.
- highway_3d: localStorage 'h3d_full_sus' polled at ~1 Hz instead of
  every frame (synchronous storage read on the hot path).
- highway_3d: drawLyrics caches the measureText row layout keyed on
  (lyrics ref, line index, shown count, font size, width) — per-frame
  work is now just drawing over cached widths.
- tests/js: bundle source-shape assertions widened to accept the
  assignment form ([:=]) alongside the old object-literal form.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-02 00:02:54 +02:00
115c96a3f0 feat(tuner): gate playback until you've tuned — hold autoplay + no-trap Skip/Back/Esc (working-tuning PR 4) (#666)
* feat(tuner): gate playback until you've tuned — hold autoplay + no-trap Skip/Back/Esc (working-tuning PR 4)

When the opt-in auto-open fires because a song needs a different tuning, playback
now WAITS behind the tuner instead of starting underneath it — the "tune before
you play" model. Built on a new generic core hook window.feedBack.holdAutoplay()
(mirrors holdAutoExit): the tuner claims the hold synchronously on song:loading
(beating the song:ready autostart) and releases it — or a 12s fail-open backstop
does — so a wedged plugin can never strand a song. Generation-guarded; manual
Play always wins.

No one-way trap:
- Skip = "I've tuned" -> plays and records the song's tuning as the instrument's
  current working tuning (the explicit write-point PR 3 left as 'assumed').
- Back to library / Esc -> leave the song, record nothing (reuses requestExitSong;
  Esc is the existing player shortcut).
- The in-panel x is dropped for an auto-open — Skip/Back/Esc are the dismiss
  surface. This also keeps the write honest: Skip is the only on-player dismiss
  that records, so leaving never falsely records a tuning.

Stacked on #660 (working-tuning PR 3). Core app.js gains only the generic hook
(a test asserts it never references the tuner's internals); shell-agnostic.

Needs a desktop smoke-test that the tuner mic doesn't contend with note_detect's
scoring input under ASIO/exclusive mode (per the design charrette).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QbexxfTt8q2tAn436MqGWF

* fix(tuner): backstop can't cut off tuning + gate race/token hardening (PR #666 review)

Review fixes for the autoplay gate:

- The 12s fail-open backstop could start playback UNDER a legitimately-open tuner
  (a slow / mic-verify retune > 12s). holdAutoplay()'s release now carries a
  .settle() that cancels the backstop; the tuner calls it once the tuner is
  confirmed open (_gateClaimed), so the hold becomes deliberate and only a
  dismiss / song switch releases it. (Fail-open still covers "claimed but wedged
  before deciding".)
- The async song:ready handler could release a NEWER song's gate after its await
  (global _gateClaimed, no guard). It now snapshots _autoOpenGeneration and bails
  if a newer song took over.
- holdAutoplay guarded by song generation, not per-hold — a stale release from an
  earlier hold could clear a later one. Each hold now mints a unique token that
  release()/settle() must match.

Tests: source-level assertions for the token, settle(), the settle-on-open call,
and the song:ready gen-guard. 45 tuner+speed tests green. Codex-reviewed.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: byrongamatos <xasiklas@gmail.com>
2026-07-01 11:18:29 +02:00
6aed8510d7 Tuner: passive "different tuning" badge cue naming the retune (issue E, stage 2.5/3) (#657)
* Tuner: passive "different tuning" badge cue that names the retune

Building on the coverage check: when you enter a song your current
instrument doesn't cover, the topbar tuner badge gets an amber ring + a
tooltip naming the change (e.g. "retune B->A", or "the reference pitch"
for an A440 vs A432 mismatch). Advisory only -- it never auto-opens the
panel; recomputed on song:ready, cleared on song-load / leaving the
player.

Refactors the coverage check into a structured report
(window._tunerAutoOpen.coverageReport -> { covered, retune:[{from,to}],
reference, cantCover }); the boolean gate now wraps it. The cue is
CSS-free (inline ring + native tooltip, no Tailwind rebuild) and no-ops
when the tuner plugin is absent.

Touches static/v3/badges.js (cue) + plugins/tuner/screen.js (report).
v3-only. Stacked on #656 (issue E stage 2.5/3). The splitscreen-suppress
and no-usable-input guards move to E2 (the playback gate).

Tests: tests/js/tuner_auto_open.test.js (report names the strings,
reference mismatch, badge wiring).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QbexxfTt8q2tAn436MqGWF

* feat(tuner): read/write the live per-instrument working tuning — both-directions retune prompt (working-tuning PR 3) (#660)

The §4 coverage check compared each song against the player's fixed
instrument-profile tuning, so the tuner only ever prompted *away* from a "home"
tuning (E -> Drop C#) and stayed silent coming back (Drop C# -> E), even though
the player had physically retuned.

_playerTuning() now reads the host's live per-instrument working tuning
(window.feedBack.workingTuning, keyed by the selected instrument from
/api/settings) instead of re-deriving from the static settings tuning, so
coverage is measured against what the instrument is ACTUALLY in and prompts both
directions. On clearing an auto-opened tuner, _publishWorkingTuning() writes that
song's tuning as the instrument's live working tuning ('assumed' — PR 4's
explicit "I tuned / Skip" refines the write-point), so the next song is judged
against where the player now is.

Per-instrument (guitar vs bass tracked separately). Feature-detected: falls back
to the static /api/settings tuning when the working-tuning capability is absent,
so the 27 existing coverage tests are unchanged. Builds on PR 1 (host
workingTuning) + PR 2 (instrument->chart routing).

Tests: tests/js/tuner_auto_open.test.js — +2 (both-directions coverage via a live
Drop-D working tuning; publish-on-clear targets the right instrument slot); 29
pass total.

Claude-Session: https://claude.ai/code/session_01QbexxfTt8q2tAn436MqGWF

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

* fix(tuner): transactional open + fail-closed auto-open config (tuner-E #655 review) (#681)

Two review fixes for the auto-open opt-in+persist stage:

- enable() wasn't transactional. The panel (with the ×/Skip buttons) is shown
  before `await _tunerAudio.start()`, and `_state.enabled` was only set after it.
  A ×/Skip dismiss during that await hit disable() with wasEnabled=false, then
  enable() completed and flipped enabled on — an enabled-but-hidden zombie. Guard
  the open with an `_openGen` token bumped on every enable()/disable(); after the
  audio-start await, bail if superseded instead of enabling. Closes #675.

- Config wasn't fail-closed. routes.py normalized the opt-in with
  bool(data.get("autoOpenOnTuningChange", False)), so "false"/"0"/junk coerced to
  True. Accept only a real JSON boolean. Closes #676.

Tests: tuner_auto_open.test.js (dismiss-mid-open stays disabled — fails without
the token guard), test_config.py (auto-open default-false + fail-closed on
non-bool). 34 JS + 24 config tests green.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(tuner): coverage stays conservative when the instrument is unknown (tuner-E #656 review) (#682)

_playerTuning() is documented as conservative ("missing data → not covered → still
prompt"), but when /api/settings carried no instrument identity (a fresh profile:
_default_settings() omits instrument/string_count/tuning) it invented guitar/6/440/
standard, so an unconfigured player was treated as 6-string E-standard and coverage
suppressed the auto-open (and badge cue) for matching songs. The post-#660 rewrite
only returned null when the whole fetch failed (!s), not when settings existed but
lacked an instrument.

Now return null unless there's a confident identity — any of instrument/string_count/
tuning in settings, or live working-tuning offsets. A configured standard guitar still
covers a standard song (no regression). Closes #677.

Tests: tuner_auto_open.test.js — empty-settings → not covered (fails without the fix);
configured standard guitar → still covered.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(tuner): badge coverage cue staleness + unknown-as-warning + dedupe (tuner-E #657 review) (#683)

Three review fixes for the passive "different tuning" badge cue stage:

- Stale async cue (#678): _refreshCoverageCue awaited coverageReport then wrote the
  DOM unconditionally, so a slow /api/settings fetch could restore the previous
  song's amber ring after song:loading / leaving the player. Add a monotonic token
  bumped on every refresh and both clear paths; apply the awaited report only if the
  token still matches.

- "Unknown" rendered as "needs retune" (#679): the plugin returns a conservative
  all-false report on a fetch hiccup; the cue painted that as an amber "retune the
  reference pitch" ring. Collapse a no-signal report (not covered, no reference /
  retune / cantCover) to null (no cue) via _meaningfulReport(). A genuine not-covered
  report always carries reference / retune / cantCover, so real cues are preserved.

- Duplicate /api/settings fetch (#680): the auto-open gate and the badge cue both
  call coverageReport() per song:ready. Cache the coverage promise per song (keyed by
  session + tuning + centOffset) so they share one fetch; invalidate on song:loading,
  instrument:changed, and working-tuning-changed so it can't go stale within a song.

Tests: tuner_auto_open.test.js — concurrent reports share one fetch, a new song
refetches (fails without the cache). 34 JS tests green. Codex-reviewed.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: Byron Gamatos <xasiklas@gmail.com>
2026-07-01 10:28:04 +02:00
6b0e37aa35 Tuner auto-open: instrument-coverage check (issue E, stage 2/3) (#656)
With the opt-in auto-open on, only prompt when the player's current
physical tuning doesn't already cover the song. FeedBack is tune-to-song
(the highway draws tab in the song's tuning), so the check aligns the
song's open-string tuning string-for-string against the player's
instrument:

- An 8-string F# player gets no prompt for a 6-/7-string standard song
  (its top strings already match those tunings).
- A song needing an open string the player lacks (e.g. a Drop-A
  7-string's low A on an F# 8-string) still prompts.
- A whole-instrument reference difference (A440 vs A432, or an
  octave-down centOffset, previously ignored) also prompts.

Reads the player's instrument from core /api/settings (the v3 instrument
selector, a stable physical reference); conservative fallback (prompt)
when undeclared or unavailable, so a real retune is never silently
skipped. v3-only. All in plugins/tuner/screen.js; no core changes.

Stacked on #655. Follow-up E1.6: a passive badge cue that names the
strings to retune, plus splitscreen / no-usable-input guards.

Tests: tests/js/tuner_auto_open.test.js (covered/uncovered, the Drop-A
case, reference mismatch, direct contiguous alignment).


Claude-Session: https://claude.ai/code/session_01QbexxfTt8q2tAn436MqGWF

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-01 10:25:57 +02:00
6bfd92aa06 Fix tuner auto-open flash: opt-in + persist (issue E, stage 1/3) (#655)
The tuner self-closes on song:play; autoplay fires it right after a song
switch, so an auto-opened tuner flashed shut ~1s later. An arrangement
switch (which never arms autoplay) instead persisted — the opposite
tester reports, and not the mic.

- New opt-in setting autoOpenOnTuningChange (tuner Settings, default OFF)
- An auto-opened tuner persists: it ignores the autoplay song:play, stray
  outside-clicks, and same-screen re-emits, closing only via the new
  in-panel x / Skip buttons or leaving the song. A manual open keeps the
  classic click-away / play-to-close behaviour.
- Adds the panel's first in-box close (x + contextual Skip).
- All in the tuner plugin; no core app.js changes.

Default (opt-in vs opt-out) is teed up for Byron to flip one boolean.
Staged follow-ups: E1.5 = instrument-coverage smart prompting + badge
cue; E2 = holdAutoplay gate.

Tests: tests/js/tuner_auto_open.test.js (opt-in gate, persist mode,
play/click-proofing).


Claude-Session: https://claude.ai/code/session_01QbexxfTt8q2tAn436MqGWF

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-01 10:24:39 +02:00
topkoa 7713ca92f4 Merge remote-tracking branch 'origin/main' into feat/feedpak-jsonc
Signed-off-by: topkoa <topkoa@gmail.com>

# Conflicts:
#	CHANGELOG.md
2026-07-01 03:27:38 -04:00
c4bb58233d feat(core): route the highway chart to the selected instrument's part (working-tuning PR 2) (#659)
When a song loads without an explicit arrangement, highway_ws now reads the
player's selected `instrument` from config.json (the same file it already reads
for the default-arrangement preference) and picks the arrangement that matches:
bass -> the Bass part. Guitar — and any unknown/future instrument (drums, keys)
— falls through to the existing preference/most-notes default, which already
lands on a guitar part.

Previously the instrument selector only fed the tuner, so a bass player was
handed the default Lead/guitar chart, and the working-tuning coverage check then
compared a 4-string bass against a 6-string part (always "can't cover"). This is
the instrument->chart routing the working-tuning series leans on.

Server-only (every launch path flows through the WS, so no client change). An
explicit arrangement request always wins, so only the default part chosen on
load changes. Tests: tests/test_highway_ws_instrument_routing.py (bass->Bass,
guitar->default, explicit-wins) — 3 new, existing highway WS tests still green.


Claude-Session: https://claude.ai/code/session_01QbexxfTt8q2tAn436MqGWF

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-01 08:58:50 +02:00
491039a12d feat(core): host per-instrument workingTuning capability + read-API/event (working-tuning PR 1) (#658)
* feat(core): host per-instrument workingTuning capability + read-API/event (working-tuning PR 1)

Introduce window.feedBack.workingTuning — the live, host-authoritative current
instrument tuning (offsets + string-count + reference pitch + assumed/verified
provenance), distinct from any one song's tuning and from a soft opt-in default.
It's the single source of truth the highway, library, and plugins (tuner,
Virtuoso, minigames) will read so a retune or instrument swap is reflected
app-wide instead of being re-derived per surface.

PER-INSTRUMENT: state is a map keyed by `${instrument}-${stringCount}` (e.g.
guitar-6 / bass-4, the selector's key) — your guitar's tuning and your bass's are
kept separately; get() returns the selected instrument's, and switching the
selector surfaces that instrument's own remembered tuning. You only ever deal
with the one you've picked.

Modeled on the shipped `tuning` capability + the `feedBack.theme` read-API:
synchronous get(instrument?), set(state,{provenance,instrument}) mutator,
setCurrentInstrument(), resetToDefault(), and a `working-tuning-changed` event
that fires on change and once on hydration (carrying which instrument changed).
In-memory, seeded from /api/settings, reset-on-restart. Registered as a separate
`working-tuning` exclusive-owner capability (tuner = sole writer, others read).

Foundation only — pure plumbing, nothing writes to it yet and no behavior
changes. The tuner becomes the writer (and the gate's E->C# asymmetry is fixed)
in a later PR.

Frontend-only: new static/capabilities/working-tuning.js, loaded from
static/index.html + static/v3/index.html. Per-instrument state machine verified
by a stubbed node harness (separate guitar/bass slots, selector switch, isolated
writes, verified stamp, reset, defensive copies, capability registration).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QbexxfTt8q2tAn436MqGWF

* fix(working-tuning): resolve review P1/P2s + add behavioral test harness

Addresses the manual + Codex review of PR 1 (working-tuning foundation).

P1 — named tunings were dropped by the boot seed: /api/settings.tuning may be a
name ("Drop D") OR an offsets list, but the seed only handled the list and stored
offsets:null for names. The seed now resolves a name to per-string semitone offsets
via /api/tunings (ratio vs Standard; reference pitch cancels).

P1 — async seed could clobber state a consumer had already written: _seedFromSettings
resolves after boot and used to overwrite _currentKey/_byInstrument unconditionally.
It now bails when state was already _touched (and re-checks after the /api/tunings
leg), so an explicit set()/setCurrentInstrument()/resetToDefault() before hydration
wins. Hydration still fires.

P1/P2 — shallow copy leaked live nested arrays: get() and set() now clone offsets and
verifiedStrings on both ingress and egress, honouring the "readers can't mutate live
state" contract.

P2 — provenance/verification state machine made coherent by construction:
verified <=> verifiedStrings is an array AND verifiedAt is a finite number. A tuning
change invalidates prior verification unless a fresh bundle is supplied; a "verified"
claim with no strings or a null/absent timestamp is repaired (assumed / stamped now).

P2 — bare-instrument writes targeted a hard-coded default string count: _keyOfResolved()
resolves an omitted string count against the current selection (same instrument), so
set({instrument:'bass'}) / set({stringCount:5}) hit the selected bass-5, not bass-4.

Test — adds tests/js/working_tuning.test.js (the harness the PR described but did not
commit): 11 behavioral cases over a stubbed window — registration, per-instrument
isolation + selector switch, defensive copies, the verification invariant, bare-key
routing, named + offsets-list seeding, and the boot-race guard. Full tests/js suite:
no new failures (the 12 pre-existing branch failures are unrelated).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: byrongamatos <xasiklas@gmail.com>
2026-07-01 08:05:56 +02:00
3120ae3e71 fix(highway_3d): dolly back so the fret-number row can't clip off the bottom (#633)
The heat-coloured fret-number row is drawn as a band BELOW the board
(sY(lowest) - S_GAP*1.4), but camUpdate's self-correcting framing only
anchors the board CENTRE to the lower third of the screen and reserves no
headroom for that row. So a tight zoom on a centred active span (worst
mid-neck; fine at either end of the neck) pushes the numbers past the
bottom edge -- which is why testers saw it "only when centered" and "not
every song." Tilt can't fix it (it would only trade a bottom clip for a
top clip); the vertical-extent problem at tight zoom needs camera distance.

Add a fret-row fit guard: project the row band with the final camera and,
when it falls below FRET_ROW_FIT_NDC_MIN, raise a capped, hysteretic
_fretRowFitBoost applied to the curDist lerp target (the span-driven
tgtDist still owns zooming IN). The boost rises promptly (proportional to
the deficit), relaxes lazily past a deadband, and is capped at
FRET_ROW_FIT_BOOST_MAX (+60%) so the zoom can't pop or hunt. It cooperates
with the tilt loop (pull-back shrinks the scene, tilt keeps the centre
anchored) and yields entirely to the Camera Director free-cam. Surgical:
passages where the row is already visible never trigger it, so framing is
unchanged everywhere it already worked.

plugin.json 3.30.0 -> 3.30.2 (screen.js cache-buster; 3.30.1 is taken by the
FPS-counter PR). Tests: tests/js/highway_3d_camera_framing.test.js
(guard constants, the boosted curDist lerp, the projected-row hysteresis,
free-cam yield).

Fixes #632


Claude-Session: https://claude.ai/code/session_01QbexxfTt8q2tAn436MqGWF

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-29 15:31:24 +02:00
199550e5fb fix(v3): dismiss Section Practice popover when another player popover opens (#638)
* fix(v3): dismiss Section Practice popover when another player popover opens

The Section Practice popover (Songs > Song > Practice pill) stayed open
when the user then clicked a v3 player-rail icon (Plugins, Audio, …),
leaving two popovers stacked on top of each other. Reported on 0.3.0
(macOS) and still reproducing in the 2026-06-28 build.

Root cause: the popover's outside-click dismiss was bound in the
bubbling phase, but the v3 rail's icon buttons call e.stopPropagation()
in their click handler (player-chrome.js wireRail), which kills bubbling
before the click reaches document. So the dismiss listener never fired
for a rail-icon click and the popover was orphaned open.

Fix: bind the outside-click dismiss in the capture phase, which runs
before the target's handler so stopPropagation() can't swallow it. This
mirrors the audio mixer popover (audio-mixer.js), which already
dismisses outside-clicks via capture-phase listeners for exactly this
reason. Esc handling stays in the bubble phase (no rail handler stops
keydown propagation, and capturing it would reorder it ahead of the
player's Escape-to-exit handling).

Shared app.js code, so v2 is covered too; v2 has no stopPropagation rail,
so its outside-click dismiss behaviour is unchanged.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QbexxfTt8q2tAn436MqGWF

* chore(#638): add CHANGELOG entry + capture-phase regression test

Review follow-ups for the Section Practice popover dismiss fix:
- CHANGELOG [Unreleased] → Fixed entry (repo workflow requires one).
- tests/js/section_practice_dismiss.test.js pins the fix: the outside-click
  dismiss binds in the CAPTURE phase (so a rail icon's stopPropagation can't
  swallow it), exactly one capture binding (Escape keydown stays bubble-phase),
  and the #section-practice-control containment guard (no self-close). A revert
  to bubble-phase fails the test.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: byrongamatos <xasiklas@gmail.com>
2026-06-29 15:00:28 +02:00
8fbbc761fc fix(v3): reject accidental text-selection of UI chrome (user-select policy) (#637)
* fix(v3): reject accidental text-selection of UI chrome (user-select policy)

Dragging/double-clicking across the v3 UI marquee-highlighted buttons, labels,
the sidebar, transport, and the note-highway HUD — looks broken (reported Mac +
Windows). Default the v3 shell to user-select:none on html, then opt CONTENT
back in. Decided by a 4-lens panel (UX / a11y / dev-ops / plugin-ecosystem);
their guardrails are baked in:

- Form fields ALWAYS re-enabled (input/textarea/select/[contenteditable]) so the
  caret + IME composition never break. No `* { user-select:none }` (WebKit input
  bug 82692).
- Plugin screens (.screen[id^="plugin-"]) stay selectable BY INHERITANCE (no `*`,
  so a plugin's own non-select chrome still wins) — a plugin's copyable text
  (lyrics, chords, results), including community/out-of-tree plugins that never
  adopt the class, isn't silently locked.
- Core read-only content opts back in by CONTAINER via a hand-authored
  `.fb-selectable` (not a Tailwind utility — so runtime-installed plugins get it
  too): the whole Settings panel (paths, device names, version, diagnostics,
  About) and the now-playing song metadata. Answers the open "keep settings
  copyable?" question: yes, at the container.

Cosmetic only — never used to lock copy-worthy text (errors/IDs/paths/versions/
metadata stay selectable; WCAG 2.2 allows copy-paste as a mechanism). v3-only
(v2 unchanged; v3.css loads only on /v3); plain CSS, no Tailwind rebuild; no
desktop/Electron changes (standard OS-framed window). `.fb-selectable` is
documented in CLAUDE.md for plugin authors.

Tests: tests/js/v3_user_select_policy.test.js (html default, form-field
re-enable, plugin-screen carve without `*`, .fb-selectable, container opt-ins,
and the no-`*`-rule guardrail).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QbexxfTt8q2tAn436MqGWF

* fix(v3): address review of the user-select policy (#637)

Review (manual + Codex) of the v3 text-selection policy:

- P1 (real bug): the now-playing HUD metadata opted into `.fb-selectable` but
  its `#player-hud` parent is `pointer-events: none`, so the mouse could never
  reach the text to select it — the opt-in was inert. Add `pointer-events-auto`
  to the metadata block (verified in-browser: user-select:text + pointer-
  events:auto, while the HUD parent stays pointer-events:none).
- Coverage: the PR's a11y guardrail promised copyable text stays selectable
  "incl. in modals/toasts", but only Settings + the HUD were opted in. Blanket-
  opt the focused copyable surfaces back in by selector — `.feedBack-modal`,
  `[role="dialog"]`, `#fb-notify-stack`, `#v3-fb-toast`, `#scan-banner` — so
  errors / IDs / paths / file names in dialogs, toasts, and the scan banner stay
  copyable. These are focused panels, not dense card lists, so re-enabling
  selection there can't recreate the across-cards marquee mess.
  (Deliberately NOT opting in the library grid / dashboard / profile card lists:
  making dense card text selectable would reintroduce exactly that marquee mess
  on a drag — copy song metadata from the now-playing HUD / Settings instead.)
- Test (P3): assert the selectable rule's selectors order-independently, cover
  the new modal/toast/banner surfaces, and check the HUD block carries BOTH
  fb-selectable and pointer-events-auto (class-order independent).

Verified in a real browser (chromium): html=none, sidebar chrome=none, input=
text, Settings=text, HUD meta=text+pointer-events:auto, dialog/modal=text.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: byrongamatos <xasiklas@gmail.com>
2026-06-29 14:44:56 +02:00
a791a0d8fe feat(v3): DOM-virtualize the Songs grid (#636 item 3 stage 2) (#643)
The v3 Songs grid appended every scrolled page and never released nodes,
so card-node count grew unbounded with scroll depth (24 → 624 → 2001 for a
2000-song library). Replace it with a windowed/recycled render: only the
visible window (± overscan) is in the DOM while a #v3-songs-gridsizer
element sized to ceil(total/cols)*rowH gives the scrollbar full-library
geometry; #v3-songs-grid is absolutely positioned to the first visible row.

- state.songs is a sparse, absolutely-indexed store filled a page at a time
  by ensureWindow(): the stage-1 keyset cursor for contiguous forward scroll
  (O(page)), OFFSET page= for jumps/restore/non-keyset providers. _loadPage
  shares an in-flight promise per page and an epoch guard discards a stale
  fetch that lands after a reset.
- A–Z rail seeks directly via sort_letters cumulative counts (O(1), no
  page-through); bounded scan fallback for legacy providers without it.
- Snapshot/restore is now scrollTop-based (geometry is stable). Select mode,
  accuracy badges, ⋮ menu, plugin card actions, and tree/folder coexistence
  survive cards recycling; renderWindow re-renders when select mode toggles.
- Plugins get window.v3Songs.visibleCards() + a v3:library-window-rendered
  event instead of assuming all cards are present (highway-stutter lesson).

Verified in a browser against a seeded 2001-song library: DOM bounded to
~60 nodes while the count reads "2001 songs", rail jump lands on the target
row, selection survives recycling, scroll-restore exact. Codex-reviewed
(3 findings fixed: stale-fetch epoch guard, await-in-flight page promise,
select-mode resync on cached re-entry).

Frontend-only. Tests: tests/browser/v3-grid-virtualization.spec.ts pins the
bounded-DOM invariant + direct rail jump; tests/js/v3_az_rail.test.js and
v3_songs_scroll.test.js updated to the new wiring.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-29 12:26:29 +02:00