feat: sync batch benchmark results into My Voices (v1.12.16)

After a batch benchmark completes, successful entries are saved to each
voice's meta.json via POST /api/voice/meta. window.loadVoiceLibrary() is
then called so My Voices Factor + WPM columns update instantly without
a manual reload.

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

CHANGELOG.md

@@ -9,6 +9,13 @@ Follows [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) · versioned wi
 
 ---
 
+## [1.12.16] — 2026-06-28
+
+### Added
+- **Batch benchmark → My Voices sync** — after a batch benchmark run completes, results are automatically saved to each voice's `meta.json` via `POST /api/voice/meta`, and My Voices Factor + WPM columns update immediately without a manual page refresh.
+
+---
+
 ## [1.12.15] — 2026-06-28
 
 ### Added

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=1.12.15">
+  <link rel="stylesheet" href="/static/style.css?v=1.12.16">
 
 
   <!-- ── 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=1.12.15"></script>
+<script src="/static/loader.js?v=1.12.16"></script>
 
 </body>
 </html>

static/js/benchmark.js

@@ -403,6 +403,31 @@
       (best ? `, best RTF ${best.avgRtf.toFixed(2)} (${best.voice})` : ''),
       ok.length < batchResults.length ? 'error' : 'success'
     );
+
+    // Sync results into voice meta so My Voices Factor/WPM columns update
+    const syncable = batchResults.filter(r => r.ok && r.avgRtf > 0 && r.avgAudio > 0);
+    if (syncable.length && typeof window.loadVoiceLibrary === 'function') {
+      const benchText = ($('perf-text')?.value || '').trim();
+      await Promise.allSettled(syncable.map(r =>
+        fetch('/api/voice/meta', {
+          method: 'POST',
+          headers: { 'Content-Type': 'application/json' },
+          body: JSON.stringify({
+            voice_id: r.voice,
+            benchmark: {
+              ok: true,
+              text: benchText,
+              elapsed_sec: r.avgLatency / 1000,
+              audio_sec: r.avgAudio,
+              speed: 1 / r.avgRtf,
+              rtf: r.avgRtf,
+              ttfa_ms: r.minLatency,
+            }
+          })
+        })
+      ));
+      await window.loadVoiceLibrary();
+    }
   }
 
   batchRunBtn.addEventListener('click', runBatchBenchmark);

static/js/voice-library.js

@@ -926,6 +926,8 @@ function mergeBenchmarkResults(d) {
     if (hit && hit.benchmark) v.benchmark = hit.benchmark;
   });
 }
+window.loadVoiceLibrary    = () => loadVoiceLibrary();
+window.mergeBenchmarkResults = mergeBenchmarkResults;
 
 function activeBenchmarkVoices() {
   return (_voices || []).filter(v => v.enabled !== false);