docs(openwebui): the browser-kokoro switch is the user's settings row, not browser storage

`wilwheaton` kept failing in OpenWebUI with the 29-name Kokoro enum even
after the dropdown was set to Default. The page's 2026-10-18 conclusion —
"no user.settings row carries an audio override, so the choice lives in that
browser's own storage" — was a probe-depth bug: the personal audio settings
live in table `user`, and the 0.12.x front end nests them under `ui`
(`settings.ui.audio.tts.engine`). The row did carry `browser-kokoro`, and the
SPA re-applies the server copy on every load, so the UI fix never stuck.

Corrected facts on the owner page:
- where the override really lives, and the version-dependent nesting;
- repair BOTH engine and voice: engine "" still sends the stored voice, so a
  Kokoro-era `voice: "alloy"` returns as frank-tts's own 400;
- the one-line tells: an `/wasm/ort-wasm-simd-threaded.jsep.wasm` fetch means
  Kokoro.js is live in that browser, and uvicorn logs every request so a
  missing `/api/v1/audio/speech` line is evidence;
- deployed build is 0.12.5 (pin `0b399a8b`, bumped 2026-10-30) — the page
  still claimed 0.11.4 — and the 401 paragraph's duplicated sentence is gone.

Verified 2026-11-04: with the row repaired, `POST /api/v1/audio/speech` as a
real user over the vhost returns 200 audio/mpeg and frank-tts logs
`speech voice=wilwheaton`.

serverAppConfigs-docs/Dankclaw/Frank TTS.md

@@ -222,5 +222,5 @@ harness bundle and measured the day of the flip:
 | Endpoint answers, synthesis fails | the engine: `podman healthcheck run frank-tts-engine`, then `systemctl --user status frank-tts-engine.service` |
 | First request of the day is ~0.6 s slower than the rest — or every name returns 400 | the warm pass did not run; it carries `-`, so it cannot fail the unit. `journalctl --user -u frank-tts-engine` for the warmer's lines, then `podman exec frank-tts-engine /app/warm-voices.sh` — the registry is memory-only (law 1 of [[Frank TTS Engine]]) |
 | The unit never appears after a deploy | the generator dropped it: `frank-tts-engine.network` is missing from `~/.config/containers/systemd/` |
-| A consumer rejects `wilwheaton` by listing 29 names (`af_heart … bm_fable`) and no request ever reaches this endpoint | that consumer is synthesizing **in the browser** with Kokoro.js, whose voice pack is fixed — OpenWebUI 0.11.4 ships it as the `browser-kokoro` TTS engine; see [[OpenWebUI]] |
+| A consumer rejects `wilwheaton` by listing 29 names (`af_heart … bm_fable`) and no request ever reaches this endpoint | that consumer is synthesizing **in the browser** with Kokoro.js, whose voice pack is fixed. In OpenWebUI the `browser-kokoro` choice is that user's own `user.settings` row (`ui.audio.tts.engine`) and the SPA re-serves it on every load, so flipping the dropdown does not stick; see [[OpenWebUI]] |
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