v0.2.0 - Always-on services panel with per-service host config

Dashboard:
- New 'Always-on services' section with cards for Parakeet and Magpie
- Each card: host:port, model loaded, status pill (Healthy/Unhealthy/Starting/Not configured)
- Start, Restart, Stop buttons. Buttons disabled when not applicable for current state
- Restart counter shown when > 1 (would have surfaced the old magpie crash loop)

Backend:
- New /api/services GET: docker container state + http health for each support service
- New POST /api/services/{name}/{action} for start | stop | restart
- services.py module: docker_state, run_action via SSH
- config.py: PARAKEET_HOST/USER/CONTAINER and MAGPIE_* env vars, default to spark2_*
- health.py: use per-service hosts (no longer hard-wired to spark2_host)

Package:
- sparkConfig.yaml.ts: add 6 new optional fields
- configureSparks action: optional 'Parakeet host', 'Parakeet container', 'Magpie host', 'Magpie container' fields; descriptions explain they default to Spark 2 when blank
- Handler normalizes nulls to empty strings before merge
- main.ts: pass new env vars to container
- bump to 0.2.0:0

package/startos/main.ts

@@ -13,6 +13,12 @@ export const main = sdk.setupMain(async ({ effects }) => {
     spark1_user: '',
     spark2_host: '',
     spark2_user: '',
+    parakeet_host: '',
+    parakeet_user: '',
+    parakeet_container: '',
+    magpie_host: '',
+    magpie_user: '',
+    magpie_container: '',
   }
 
   return sdk.Daemons.of(effects).addDaemon('primary', {
@@ -34,6 +40,12 @@ export const main = sdk.setupMain(async ({ effects }) => {
         SPARK1_USER: cfg.spark1_user,
         SPARK2_HOST: cfg.spark2_host,
         SPARK2_USER: cfg.spark2_user,
+        PARAKEET_HOST: cfg.parakeet_host,
+        PARAKEET_USER: cfg.parakeet_user,
+        PARAKEET_CONTAINER: cfg.parakeet_container,
+        MAGPIE_HOST: cfg.magpie_host,
+        MAGPIE_USER: cfg.magpie_user,
+        MAGPIE_CONTAINER: cfg.magpie_container,
         BIND_PORT: String(uiPort),
       },
     },