feat(frank-tts): deploy wiring for the 7772 voice endpoint, and voice naming written down

Stage 2 of the voice stack. Repo state only: nothing deployed, no host touched,
no container started.

- `frank-tts` is now registered everywhere a dankclaw service has to be:
  `SERVICE_ORDER` (after `frank-tts-engine`, before the consumers), the planner's
  dankclaw set, `deploy-remote.sh`'s allowlist + dispatch + a
  `deploy_frank_tts` handler, and `deploy.sh`'s dispatch regex — plus the
  `build_compose_image` arm naming `dankclaw/voiceservice/Containerfile`, without
  which the build silently returns 0 and the unit's `Pull=never` tag never
  exists.
- The unit joins TWO networks, in order: `dankclaw_default` first (default route,
  where consumers and open-notebook live), then the voice bridge. `TTS_UPSTREAM`
  moves from `host.containers.internal:8880` to `http://frank-tts-engine:8880` —
  the actual fix for a shape that could never work, since a bridge container
  cannot reach a host-loopback bind and the engine publishes nothing at all.
- `Wants=`/`After=` on the engine, never `Requires=`: the `llama-tts-cli` rollback
  backend needs no upstream, so a broken engine may delay this endpoint but must
  not take its unit down.
- The handler installs the engine's quadlet pair too, because a referenced
  `Network=` file the generator cannot find means no façade unit is produced at
  all, and `--only frank-tts` has no other way to get it. It creates
  `/home/dank/voices` as the deploy user (rootless podman would auto-create a
  missing bind source root-owned, which reads as "no voices"), and gates on
  podman's recorded health.
- Voice naming is now written down where it can be found: a voice is a lowercase
  directory name matching `^[a-z0-9][a-z0-9._-]*$`, at most 64 chars. That shape
  is the intersection of two rules that disagree — the shim would accept mixed
  case, the engine lowercases names — so a mixed-case pack resolves on one side
  only, and the boot warmer refuses it loudly. `narrator1/2/3` are load-bearing
  for open-notebook.
- Homepage card for the pair, `wip: down` and hidden, probing `127.0.0.1:7772`;
  the engine gets no card because it publishes nothing and could never be probed.
- **No Prometheus job, deliberately.** No `/metrics` exists on the shim, this
  Prometheus 3 refuses HTML/JSON bodies (the existing `comfyui` and `services`
  probes are documented down for exactly that), and `LlmEndpointDown` is scoped
  `up{job=~"frank-.*"}` — so a `/health` job would page on Signal for a healthy
  endpoint. Recorded in the page instead of quietly skipped.
- Vault: new [[Frank TTS]] page linked from the index; [[Frank TTS Engine]] now
  points at it for the pair's public signal; log entry for the day.
- Seam grows to 25 tests: the generator's rendering of the pair (both
  attachments, first-network order, one publish, Wants-not-Requires, bounded
  per-unit blocks), the env file's upstream checked as a network JOIN rather than
  a string, planner separation and order, the handler's steps, the card's gating,
  routing that selects both seams for either deployable.

scripts/deploy-remote.sh

@@ -92,7 +92,7 @@ service_is_allowed() {
         dankclaw:caddy|dankclaw:homepage|dankclaw:seerr|dankclaw:marreta|\
         dankclaw:open-notebook|\
         dankclaw:frank-dragoon|dankclaw:frank-zealot|\
-        dankclaw:frank-tts-engine|\
+        dankclaw:frank-tts-engine|dankclaw:frank-tts|\
         dankserver:romm-mariadb|dankserver:romm-redis|dankserver:romm|\
         dankserver:copyparty|dankserver:jellyfin|dankserver:calibre-web|dankserver:calibre-server|dankserver:plex|dankserver:tautulli|\
         dankserver:prowlarr|dankserver:qbittorrent|dankserver:radarr|\
@@ -550,6 +550,14 @@ build_compose_image() {
             image="franksdank/$service:latest"
             containerfile="dankclaw/$service/Containerfile"
             ;;
+        frank-tts)
+            # The 7772 façade: stdlib python + ffmpeg, app.py copied in. Listed
+            # explicitly because build_compose_image's `*)` arm returns 0 — an
+            # unlisted service builds nothing and the unit's Pull=never then
+            # fails on a tag that was never made.
+            image=franksdank/frank-tts:latest
+            containerfile=dankclaw/voiceservice/Containerfile
+            ;;
         frank-tts-engine)
             # The arm A TTS engine (qwentts.cpp `tts-server`). Built from
             # source at a pinned upstream commit, so the build needs network
@@ -801,6 +809,43 @@ deploy_frank_tts_engine() {
     podman exec frank-tts-engine /app/warm-voices.sh
 }
 
+deploy_frank_tts() {
+    # The 7772 façade in front of frank-tts-engine. Weights and the engine build
+    # are not this handler's business, but the BRIDGE FILE is: this unit
+    # references frank-tts-engine.network, and with a referenced Network= file
+    # absent the v1 generator refuses to produce the container unit at all. So
+    # `--only frank-tts` installs the engine's quadlet pair too — idempotent, and
+    # it is what makes the façade deployable on a host where the engine was
+    # planned separately or not at all.
+    #
+    # The voice packs are host state (the pack builder writes them), but the
+    # directory is created here as the deploy user on purpose: rootless podman
+    # would otherwise auto-create a missing bind source as root-owned, and the
+    # container runs as uid 10000.
+    mkdir -p /home/dank/voices
+
+    build_compose_image frank-tts
+    install_quadlet frank-tts-engine dankclaw/voiceservice/quadlet frank-tts-engine
+    install_quadlet frank-tts dankclaw/voiceservice/quadlet frank-tts
+    systemctl --user start frank-tts-engine-network.service
+
+    # No `systemctl --user enable` (generated Quadlet units cannot be enabled on
+    # this host); boot persistence is the [Install] section in each unit. The
+    # façade unit carries Wants=/After= on frank-tts-engine.service, so this
+    # restart pulls the engine — and its ExecStartPost warm pass — ahead of it:
+    # an engine that will not start delays this gate instead of taking the
+    # endpoint down with it.
+    systemctl --user restart frank-tts.service
+    # The gate is podman's recorded health, driven by the unit's own HealthCmd
+    # (`wget --spider -q http://127.0.0.1:7772/health`, inside the container's
+    # namespace). /health answers 200 with the backend name and the resolved
+    # voice list, so an empty /voices still reads healthy while a dead app does
+    # not — and note what this gate cannot see: the engine publishes no port on
+    # purpose, so an engine that is down shows up in the /health payload and in
+    # the first synthesis, never here.
+    wait_container_healthy frank-tts 120
+}
+
 deploy_comfyui() {
     # Build first: the unit's Image= resolves against local storage, so the
     # image has to exist before the generator starts a container from it.
@@ -1748,6 +1793,7 @@ deploy_service() {
         frank-zealot) deploy_llm_zealot ;;
         frank-archon) deploy_llm_archon ;;
         frank-tts-engine) deploy_frank_tts_engine ;;
+        frank-tts) deploy_frank_tts ;;
         hermes|hermes-dashboard|hermes-webui) deploy_hermes ;;
         romm|romm-mariadb|romm-redis|mariadb|redis) deploy_romm_stack "$service" ;;
         jellyfin) deploy_jellyfin ;;