sonarr, radarr: full nox modules — clients, tools and events (ADR 0044/0046)

The Servarr apps (TV, movies), each self-contained from hal's shared arr
client. Tools: status, library, search, queue, calendar. Events by polling the
download queue: a new item emits module.<app>.<thing>.grabbed, an item that
leaves as completed emits module.<app>.download.completed — the exact key plex
consumes to rescan. A grab that left as failed/warning is not reported as a
completion. Both typecheck; manifests parse.

modules/radarr/module.json

@@ -4,6 +4,14 @@
   "capabilities": [
     "container-runtime"
   ],
+  "emits": [
+    "module.radarr.movie.grabbed",
+    "module.radarr.download.completed"
+  ],
+  "consumes": [],
+  "own-secrets": {
+    "broker": "/var/lib/radarr/broker"
+  },
   "listens": [
     {
       "port": 7878,