Add Pool Status action, rename from Stratum Smoke Test

Adds a comprehensive status action showing pool health, connected
miners, block history with chain tags, and debug memory-vs-DB
comparison. Removes the clear-network-orphans action (now handled
automatically by the reconcile loop). Updates manifest description
to accurately reflect capabilities.

scripts/embassy.ts

@@ -4,3 +4,4 @@ export { dependencies } from "./procedures/dependencies.ts";
 export { health } from "./procedures/healthChecks.ts";
 export { migration } from "./procedures/migrations.ts";
 export { properties } from "./procedures/properties.ts";
+export { action } from "./procedures/actions.ts";