fix(input_setup): stop collapsing audio driver-type variants in the wizard (#627)

The onboarding audio picker de-duped the device list by display LABEL. On
Windows the engine enumerates one interface once per host API (ASIO /
Windows Audio / DirectSound) with the same name, so the variants collapsed
to a single choice — silently keeping whichever sorted first, often not the
low-latency ASIO one the player wants. It could also drop the variant that
was actually `selected`.

The audio-input capability already collapses true duplicates by
logicalSourceKey (_visibleInputSources), and these variants each have a
DISTINCT key, so the wizard's extra label-collapse was redundant for real
dupes and destructive for the variants. Removed it; the picker now lists
every selectable input.

Pairs with feedBack-desktop's change to tag each source label with its
driver type ("Focusrite (ASIO)" vs "(Windows Audio)") so the now-distinct
entries are legible.


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

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

plugins/input_setup/screen.js

@@ -51,15 +51,16 @@
             sources = sources.filter((s) => s
                 && !/midi/i.test(String(s.providerId || ''))
                 && !/^midi-input/i.test(String(s.label || '')));
-            // De-dupe by display label — the desktop engine enumerates the same
-            // device under several driver types, so the same name can repeat.
-            const seen = new Set();
-            sources = sources.filter((s) => {
-                const key = String(s.label || '').toLowerCase();
-                if (seen.has(key)) return false;
-                seen.add(key);
-                return true;
-            });
+            // No label de-dupe here. The audio-input capability already
+            // collapses exact duplicates by logicalSourceKey
+            // (_visibleInputSources), so nothing it returns shares a key. A
+            // device that enumerates under several driver types (ASIO / Windows
+            // Audio / DirectSound) has a DISTINCT key per type and is now
+            // labelled with its driver type (e.g. "Focusrite (ASIO)") — each is
+            // a real, separately-selectable input the user must be able to see.
+            // The old bare-label collapse also kept whichever variant sorted
+            // first, which could silently drop the one that was actually
+            // `selected` below.
             const selected = sources.find((s) => s && s.selected) || null;
             return { sources, selected };
         } catch (_) { return { sources: [], selected: null }; }