bazarr: reach sonarr and radarr through the mesh; placed dirs; the image ace runs

bazarr reached sonarr and radarr as `sonarr:8989` and `radarr:7878`,
container names on HAL's shared network, which the mesh does not have.
It now requires sonarr-api and radarr-api (provided since #156) and a
run-once step writes host, port, TLS, base path and key into bazarr
through bazarr's own POST /api/system/settings - the call its settings
screen makes - only for the fields that differ, and reads them back.
bazarr's config.yaml is not written by the mesh: bazarr holds it in
memory and rewrites it, so the two would overwrite each other. The key is
tried against the app first; a refused key (a minted pair credential
before the operator accepts the app's own) is never written, and the step
fails naming the `secret accept` that fixes it. Declared last so its
failing gates nothing else (ADR 0136); restart-on its four inputs.

The api-key own-secret is gone. bazarr makes its own key and nothing lets
the mesh set it, so a minted one could never work; the tools and the step
read auth.apikey from bazarr's own config/config.yaml (mounted read-only),
which also stays right if the key is regenerated. Nothing to accept.

The config dir is a pathless ${dir:config}; config.json and the bindings
live in a placed state dir; /var/lib/mesh/bazarr keeps only the broker.
The image is pinned to the digest ace runs (v1.6.1-ls364); the old pin was
v1.6.0-ls361, older than ace's database.

Based on feat/servarr-api-provision (#156); this branch contains it.

Verified: catalogue tests with MESH_CATALOGUE pass (not skipped); a
resolve of sonarr+radarr+bazarr on a fake ace renders both bindings and
sealed credentials into the state dir with every ${} filled, and bazarr
alone is refused naming sonarr and radarr; strict tsc passes and the
Dockerfile's non-strict compile builds; 8 node tests pass; the compiled
step against the pinned image in a throwaway container with fake
sonarr/radarr wrote sonarr (ip, port, apikey), refused radarr's minted
key and wrote nothing for it, wrote radarr once the key was right, and
changed nothing on a third run - the values landed in config.yaml.

modules/bazarr/module.json

@@ -8,8 +8,7 @@
     "subtitle.downloaded"
   ],
   "own-secrets": {
-    "broker": "/var/lib/mesh/bazarr/broker",
-    "api-key": "/var/lib/mesh/bazarr/api-key"
+    "broker": "/var/lib/mesh/bazarr/broker"
   },
   "listens": [
     {
@@ -45,10 +44,15 @@
       "path": "/var/lib/mesh/bazarr",
       "mode": "0700"
     },
+    {
+      "id": "state",
+      "type": "directory",
+      "mode": "0700",
+      "place": "."
+    },
     {
       "id": "config",
       "type": "directory",
-      "path": "/services/bazarr/config",
       "mode": "0700",
       "owner": "1000:1000"
     },
@@ -56,7 +60,7 @@
       "id": "server",
       "type": "container",
       "name": "bazarr",
-      "image": "lscr.io/linuxserver/bazarr@sha256:3a820372f19fcb2981ea19fe4b5382934d67414afaba974bce831ddda0a64a02",
+      "image": "lscr.io/linuxserver/bazarr@sha256:d24bd0048c759a468970989e9df11a6b96a7628d556d00f923e60a35ba59237b",
       "env": {
         "PUID": "1000",
         "PGID": "1000",
@@ -66,7 +70,7 @@
         "6767"
       ],
       "volumes": [
-        "/services/bazarr/config:/config",
+        "${dir:config}:/config",
         "/services/media/movies:/movies",
         "/services/media/series:/series",
         "/services/media/anime:/anime",
@@ -76,7 +80,7 @@
     {
       "id": "runtime-config",
       "type": "file",
-      "path": "/var/lib/mesh/bazarr/config.json",
+      "path": "${dir:state}/config.json",
       "mode": "0600",
       "content": "{}\n",
       "merge": "json"
@@ -88,14 +92,12 @@
       "network": "host",
       "volumes": [
         "/var/lib/mesh/bazarr/broker:/run/secrets/broker:ro",
-        "/var/lib/mesh/bazarr/api-key:/run/secrets/api-key:ro",
-        "/var/lib/mesh/bazarr/config.json:/run/config/config.json:ro",
-        "/services/bazarr/config:/var/lib/bazarr/config:ro"
+        "${dir:state}/config.json:/run/config/config.json:ro",
+        "${dir:config}:/var/lib/bazarr/config:ro"
       ],
       "env": {
         "MESH_BROKER_FILE": "/run/secrets/broker",
         "MESH_BAZARR_URL": "http://127.0.0.1:${port:6767}",
-        "MESH_BAZARR_API_KEY_FILE": "/run/secrets/api-key",
         "MESH_BAZARR_CONFIG_FILE": "/run/config/config.json",
         "MESH_BAZARR_CONFIG_DIR": "/var/lib/bazarr/config"
       },
@@ -103,10 +105,42 @@
         "runtime-config"
       ],
       "artifact": "runtime"
+    },
+    {
+      "id": "servarr",
+      "type": "container",
+      "name": "mesh-bazarr-servarr",
+      "network": "host",
+      "run-once": true,
+      "volumes": [
+        "${dir:config}:/var/lib/bazarr/config:ro",
+        "${dir:state}/sonarr-api.json:/run/servarr/sonarr-api.json:ro",
+        "${dir:state}/sonarr-api.secret:/run/servarr/sonarr-api.secret:ro",
+        "${dir:state}/radarr-api.json:/run/servarr/radarr-api.json:ro",
+        "${dir:state}/radarr-api.secret:/run/servarr/radarr-api.secret:ro"
+      ],
+      "env": {
+        "MESH_BAZARR_URL": "http://127.0.0.1:${port:6767}",
+        "MESH_BAZARR_CONFIG_DIR": "/var/lib/bazarr/config",
+        "MESH_SERVARR_DIR": "/run/servarr"
+      },
+      "args": [
+        "run",
+        "/app/modules/bazarr/dist/servarr/index.js"
+      ],
+      "restart-on": [
+        "bound-sonarr-api",
+        "secret-sonarr-api",
+        "bound-radarr-api",
+        "secret-radarr-api"
+      ],
+      "artifact": "runtime"
     }
   ],
   "requires": [
-    "route"
+    "radarr-api",
+    "route",
+    "sonarr-api"
   ],
   "contributes": {
     "route": {
@@ -115,7 +149,13 @@
     }
   },
   "binds": {
-    "route": "/var/lib/mesh/bazarr/route.json"
+    "route": "${dir:state}/route.json",
+    "sonarr-api": "${dir:state}/sonarr-api.json",
+    "radarr-api": "${dir:state}/radarr-api.json"
+  },
+  "secrets": {
+    "sonarr-api": "${dir:state}/sonarr-api.secret",
+    "radarr-api": "${dir:state}/radarr-api.secret"
   },
   "build": {
     "on": [