chore(frank-tts): repoint narrator slots to the live voice packs

Frank replaced the narrator1/2/3 packs with cloned character voices
(wilwheaton, vaati, dr.kern, garrickhagon, jeffhays). The three narrator
slots are now carried by real packs: narrator1=wilwheaton, narrator2=vaati,
narrator3=dr.kern.

- frank-tts.env DEFAULT_VOICE narrator1 -> wilwheaton (a voice-less request
  400'd on the dead name; wilwheaton is narrator1's successor).
- Docs: correct the /health census and the podcast-speaker references in
  Frank TTS.md and Open Notebook.md to the live packs. Dated 2026-10-18/19
  measurement logs are left as history.

Open Notebook's live dank-duo speaker profile was repointed over REST
(Frank->wilwheaton, Comrade->vaati) - app-side, not in this commit.
Bats fixtures keep narrator1 as a self-contained sample pack; untouched.

serverAppConfigs-docs/Dankclaw/Open Notebook.md

@@ -70,7 +70,7 @@ Credentials live in the database, encrypted with `OPEN_NOTEBOOK_ENCRYPTION_KEY`,
 | Model row `voxcpm2` | type `text_to_speech` on the frank-tts credential. The name is decorative: frank-tts ignores the request's `model` field and synthesizes whatever `voice` names ([[Frank TTS]]) |
 | Model row `frank-archon` | type `language`; `PUT /api/models/defaults` points chat, transformation and large-context at it |
 | Model row `qwen3-embedding-0.6b` | type `embedding` on the NPU-lane credential; `default_embedding_model` points at it, so every note save embeds through the XDNA2 lane ([[frank-dragoon]]) |
-| Speaker profile `dank-duo` | two speakers, Frank → `voice_id: narrator1`, Comrade → `narrator2`, `voice_model` = the TTS row |
+| Speaker profile `dank-duo` | two speakers, Frank → `voice_id: wilwheaton`, Comrade → `vaati`, `voice_model` = the TTS row |
 | Episode profile `dank-daily` | `num_segments: 4`, `speaker_config` = `dank-duo`, outline and transcript LLM = the archon row, briefing that ends "Never invent numbers." |
 
 Order that works over REST: credentials → model rows (`POST /api/models` with `credential: <credential id>`) → `PUT /api/models/defaults` → speaker profile (`voice_model: <model id>`) → episode profile (`speaker_config` / `outline_llm` / `transcript_llm`). `POST /api/models/{id}/test` proves each row: the language row answered with a real completion from frank-archon; the TTS row reached frank-tts and came back `unknown voice 'alloy'; available voices: narrator1, narrator2, narrator3` — the app's own test path hard-codes an OpenAI voice, so that message *is* the proof the leg works.
@@ -108,13 +108,13 @@ A **speaker profile** carries one to four speakers (`docs/3-USER-GUIDE/creating-
 
 | Speaker | Voice ID to type |
 |---------|------------------|
-| Speaker 1 | `narrator1` |
-| Speaker 2 | `narrator2` |
-| Speaker 3 | `narrator3` |
+| Speaker 1 | `wilwheaton` |
+| Speaker 2 | `vaati` |
+| Speaker 3 | `dr.kern` |
 
 Those are the pack names frank-tts resolves from `/home/dank/voices` (`scripts/frank-tts.env` header: a voice is real exactly when `/voices/<name>/reference.wav` exists). Two traps, both from upstream's shipped defaults:
 
-- The three seeded speaker profiles carry **OpenAI voice names** (`nova`, `alloy`, …) and **no voice model at all** — they show a "Setup required" badge, and generation fails with a voice error until they are edited (`creating-podcasts.md:13`, `:33`; `local-tts.md:89`). Add a `narrator1`/`narrator2` pair (or a third/fourth) rather than editing the seeded ones in place.
+- The three seeded speaker profiles carry **OpenAI voice names** (`nova`, `alloy`, …) and **no voice model at all** — they show a "Setup required" badge, and generation fails with a voice error until they are edited (`creating-podcasts.md:13`, `:33`; `local-tts.md:89`). Add a `wilwheaton`/`vaati` pair (or a third/fourth) rather than editing the seeded ones in place.
 - Two speakers with the same voice are hard to follow (`creating-podcasts.md:89`). Distinct packs per speaker is the point of the 1–4 shape.
 
 ## Two buttons that fail against frank-tts, and why that is cosmetic