MediaMtx mpv streaming support and QoL functions

.goosehints

@@ -129,7 +129,14 @@ before improvising a new pattern.
   centralized services."
 - `registry.host` / `registry.user` are values in the root `values.yaml` —
   reference them, don't hardcode `forge.keane.sh`/`ian` in new charts.
-
+- For any service whose image you personally build/push (e.g. `zoitestream`,
+  `mcp-auth-proxy`, `repertory-api`) — as opposed to an official upstream
+  image — set `imagePullPolicy: Always` on that container. These use
+  floating `:latest` tags with no digest pinning, and this is a single-node
+  cluster where Kubernetes will otherwise happily reuse a stale cached
+  image after you push a new one, requiring a manual `kubectl delete pod`
+  to force a repull. `imagePullPolicy: Always` makes every pod
+  restart/reschedule actually check the registry.
 ## Databases
 
 - One shared Postgres in the `data` group/namespace (`postgres`), used by