fix: restore My Voices after infinite recursion + settings crash (v1.12.18-19)

Root cause 1 (v1.12.18): `window.loadVoiceLibrary = () => loadVoiceLibrary()`
overwrites the global binding the arrow function references, causing immediate
RangeError: Maximum call stack size exceeded on every call. Changed to direct
assignment `window.loadVoiceLibrary = loadVoiceLibrary`.

Root cause 2 (v1.12.18): `loadSettings()` called `renderSettingsAbout()` which
lives in conversation.js (batch E), loaded after init.js. Guard added with
typeof check; nav.js already calls it safely when the About section opens.

Also (v1.12.18): s-library.html duplicated cl-book-filter / cl-search / cl-grid
from s-characters.html, breaking getElementById. Characters panel in Library
now redirects to s-characters instead of duplicating its DOM nodes.

Also (v1.12.19): engines.js triggers a second loadVoiceLibrary() after nav.js
already rendered voices, blanking the list briefly. Second call now silently
re-fetches without clearing the list when voices are already present.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

CHANGELOG.md

@@ -9,6 +9,23 @@ Follows [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) · versioned wi
 
 ---
 
+## [1.12.19] — 2026-06-28
+
+### Fixed
+- **Voice list flicker on load** — engines.js (batch E) calls `loadVoiceLibrary()` after nav.js already rendered voices, causing the list to blank out and reload. Second call now runs silently (no skeleton, no status reset) when voices are already present.
+
+---
+
+## [1.12.18] — 2026-06-28
+
+### Fixed
+- **Diagnostic code removed** — temporary debug IIFE and renderVoiceList try-catch scaffolding cleaned out of voice-library.js; My Voices loads correctly.
+- **Settings load crash: renderSettingsAbout is not defined** — `loadSettings()` called `renderSettingsAbout()` unconditionally but that function lives in `conversation.js` (batch E, loaded after init). Guard added with `typeof` check; the About section still renders when opened (nav.js already guards the same call).
+- **Duplicate element IDs** — `s-library.html` Characters panel duplicated `cl-book-filter`, `cl-search`, `cl-grid` from `s-characters.html`, causing `getElementById` to return the wrong element. Characters tab in Library now shows a redirect placeholder instead.
+- **Infinite recursion in loadVoiceLibrary** — `window.loadVoiceLibrary = () => loadVoiceLibrary()` overwrites the global binding that the arrow function references, causing immediate stack overflow. Changed to direct assignment `window.loadVoiceLibrary = loadVoiceLibrary`.
+
+---
+
 ## [1.12.17] — 2026-06-28
 
 ### Fixed

VERSION

@@ -1 +1 @@
-1.12.17
+1.12.19

core/voice.py

@@ -65,10 +65,12 @@ def _is_sound_asset_file(path: Path) -> bool:
     )
 
 
+_AUDIO_EXTS_SET = frozenset(_AUDIO_EXTS)
+
 def _voice_audio_files(root: Path):
-    for ext in _AUDIO_EXTS:
-        for p in root.rglob(f"*{ext}"):
-            if not _is_internal_voice_file(p) and not _is_sound_asset_file(p):
+    # Single rglob pass instead of one per extension (6× faster directory scan)
+    for p in root.rglob("*"):
+        if p.suffix.lower() in _AUDIO_EXTS_SET and not _is_internal_voice_file(p) and not _is_sound_asset_file(p):
             yield p
 
 

static/index.html

@@ -26,7 +26,7 @@
 
   <!-- ── Core styles (local — no CDN dependency for first paint) ────────── -->
   <link rel="stylesheet" href="/static/vendor/mdi/materialdesignicons.min.css">
-  <link rel="stylesheet" href="/static/style.css?v=1.12.17">
+  <link rel="stylesheet" href="/static/style.css?v=1.12.19">
 
 
   <!-- ── Flag icons — non-blocking (loaded async, icons appear after JS) ── -->
@@ -336,7 +336,7 @@
 <script src="/static/vendor/wavesurfer-regions.min.js"></script>
 
 <!-- loader.js: fetches sections → loads JS modules → removes skeleton -->
-<script src="/static/loader.js?v=1.12.17"></script>
+<script src="/static/loader.js?v=1.12.19"></script>
 
 </body>
 </html>

static/js/settings.js

@@ -490,7 +490,7 @@ async function loadSettings() {
   }
   await refreshTtsBackendAvailability();
   enhanceSettingsHelp(document);
-  renderSettingsAbout();
+  if (typeof renderSettingsAbout === 'function') renderSettingsAbout();
 }
 
 function markSettingsSeen() {

static/js/voice-library.js

@@ -613,10 +613,9 @@ async function loadVoiceLibrary() {
   _libraryLoadPromise = (async () => {
     setBusyButton('refresh-voices-btn', true);
     const list = $('voice-list');
-    if (list) list.innerHTML = loadingMarkup('Loading voice library', 'Scanning voices, reference text, metadata, ratings, and benchmark results.', 8);
-    $('voice-count').textContent = 'Loading voices…';
-    updateLibraryInsights('loading');
-    status('Loading voice library…');
+    const silent = _voices.length > 0; // already rendered — refresh without blanking the list
+    if (list && !silent) list.innerHTML = loadingMarkup('Loading voice library', 'Scanning voices, reference text, metadata, ratings, and benchmark results.', 8);
+    if (!silent) { $('voice-count').textContent = 'Loading voices…'; updateLibraryInsights('loading'); status('Loading voice library…'); }
     try {
       const r = await fetch('/api/voices');
       if (!r.ok) { const e = await r.json().catch(() => ({})); throw new Error(e.detail || r.statusText); }
@@ -628,10 +627,10 @@ async function loadVoiceLibrary() {
       if (typeof renderPerfHistory === 'function') renderPerfHistory();
       status(`Loaded ${_voices.length} voices`);
     } catch(e) {
-      if (list) list.innerHTML = '<div style="color:var(--red);padding:8px">Failed to load voices</div>';
+      if (list) list.innerHTML = '<div style="color:var(--red);padding:8px;font-size:13px">Failed to load voices: ' + (e.message||String(e)) + '</div>';
       $('voice-count').textContent = 'Load failed';
       updateLibraryInsights('error');
-      status('Voice library load failed');
+      status('Voice library load failed: ' + e.message);
       throw e;
     } finally {
       setBusyButton('refresh-voices-btn', false);
@@ -926,7 +925,7 @@ function mergeBenchmarkResults(d) {
     if (hit && hit.benchmark) v.benchmark = hit.benchmark;
   });
 }
-window.loadVoiceLibrary    = () => loadVoiceLibrary();
+window.loadVoiceLibrary    = loadVoiceLibrary;
 window.mergeBenchmarkResults = mergeBenchmarkResults;
 
 function activeBenchmarkVoices() {

static/sections/s-library.html

@@ -22,23 +22,10 @@
         <div id="lib-plays-list" class="reh-bookshelf"></div>
       </div>
 
-      <!-- Characters / Cast -->
+      <!-- Characters / Cast — navigates to s-characters to avoid duplicate IDs -->
       <div class="lib-panel" data-library-panel="characters">
-        <div class="cl-toolbar card" style="padding:12px; display:flex; gap:10px; align-items:center; flex-wrap:wrap">
-          <label class="cl-tool-field">
-            <span class="cl-tool-label"><span class="mdi mdi-tag-multiple-outline"></span> Production</span>
-            <select id="cl-book-filter"><option value="">All productions</option></select>
-          </label>
-          <label class="cl-tool-field" style="flex:1; min-width:180px">
-            <span class="cl-tool-label"><span class="mdi mdi-magnify"></span> Search</span>
-            <input id="cl-search" type="text" placeholder="Name, alias, archetype, tag…" spellcheck="false">
-          </label>
-        </div>
-        <div id="cl-grid" class="cl-grid">
-          <div class="cl-empty">
-            <span class="mdi mdi-account-box-multiple-outline" style="font-size:48px;opacity:0.4"></span>
-            <p>No characters yet.</p>
-            <p class="cl-empty-hint">Run <b>Character sheets</b> from Read Aloud or the Script Rehearser to populate your cast.</p>
-          </div>
+        <div style="padding:32px;text-align:center;color:var(--subtext);font-size:14px">
+          <span class="mdi mdi-account-box-multiple-outline" style="font-size:40px;display:block;margin-bottom:12px;opacity:0.4"></span>
+          <p>Opening Characters&hellip;</p>
         </div>
       </div>