refactor(web): consume owner remote events directly

packages/client/runtime/src/client/index.ts

@@ -157,24 +157,6 @@ declare module '@deepseek-ai/cordis' {
      * @param key - the mutated SlotMap key.
      */
     'slots/changed'(key: string): void
-    /**
-     * The host provider topology changed (host/models-changed passthrough).
-     * Subscribers refetch `llm.providers`/`llm.models`/`session.models`.
-     * @mode emit
-     */
-    'models/changed'(): void
-    /**
-     * One session's agent preset changed (host/session-preset-changed
-     * passthrough), so everything its composition decides — the command
-     * catalog, the skill catalog — is stale for that session and no other.
-     * Every connected client observes it, not only the one that issued the
-     * switch. Subscribers refetch their own session-keyed caches; the frame
-     * carries no catalog.
-     * @mode emit
-     * @param sessionId - the session whose composition changed.
-     * @param agentPreset - the preset it now runs.
-     */
-    'session/preset-changed'(sessionId: SessionId, agentPreset: string): void
     /**
      * A connection generation was (re-)established. Wire-derived caches must
      * treat their state as stale and repull (commands directory; the queue
@@ -231,10 +213,6 @@ export function apply(ctx: Context): void {
       // `ctx.remote.$on` subscribers; no consumer reads a frame.
       const frame = envelope.payload
       if (frame.type === 'host/remote-event') ctx.remote.$dispatch(frame.event, frame.args)
-      else if (frame.type === 'host/session-preset-changed') {
-        ctx.emit('session/preset-changed', frame.sessionId, frame.agentPreset)
-      }
-      else if (frame.type === 'host/models-changed') ctx.emit('models/changed')
     },
     onConnected: () => {
       sessions.handleConnected()

packages/client/runtime/src/client/sessions/manager.ts

@@ -800,14 +800,6 @@ export class SessionManager {
         }
         return
       }
-      case 'host/session-preset-changed': {
-        // Every connected client observes the switch here; only the tab that
-        // issued it also gets the RPC echo. The merge keeps the row's own
-        // updatedAt and lowers `blank` only, so re-applying the switching
-        // tab's own frame is a no-op.
-        this.noteAgentPreset(frame.sessionId, frame.agentPreset)
-        return
-      }
       case 'host/session-removed': {
         const summary = this.summaries.find(candidate => candidate.sessionId === frame.sessionId)
         const durableSubagent = summary?.origin === 'subagent' || this.addresses.has(frame.sessionId)