fix(plugins): fan Pi session-only status out to plugin subscribers

The providerSessionOnly early-return in applyNormalizedStatus emitted to
onAgentStatus (main-window fanout) but skipped enrichedStatusListeners, so
plugins subscribed to agent.status.changed silently missed every Pi
session_start event. Route both emit sites through one helper so a future
early return cannot drop the plugin tap again.

Co-authored-by: Orca <help@stably.ai>

src/main/agent-hooks/server.test.ts

@@ -7083,6 +7083,38 @@ describe('AgentHookServer ingestRemote', () => {
     }
   })
 
+  it('fans a Pi session-only status out to plugins, not just the renderer', () => {
+    const server = new AgentHookServer()
+    const rendererListener = vi.fn()
+    const pluginListener = vi.fn()
+    server.setListener(rendererListener)
+    server.subscribeEnrichedStatus(pluginListener)
+
+    server.ingestRemote(
+      {
+        paneKey: PANE,
+        tabId: 'tab-1',
+        worktreeId: 'wt-1',
+        providerSession: {
+          key: 'session_id',
+          id: 'pi-session-1',
+          transcriptPath: '/tmp/pi-session-1.jsonl'
+        },
+        providerSessionOnly: true,
+        payload: { state: 'done', prompt: '', agentType: 'pi' }
+      },
+      'conn-1'
+    )
+
+    // The session-only path returns early, so it must not skip the plugin tap.
+    expect(rendererListener).toHaveBeenCalledWith(
+      expect.objectContaining({ paneKey: PANE, providerSessionOnly: true })
+    )
+    expect(pluginListener).toHaveBeenCalledWith(
+      expect.objectContaining({ paneKey: PANE, providerSessionOnly: true })
+    )
+  })
+
   it('rejects invalid remote metadata-only session envelopes', () => {
     const server = new AgentHookServer()
     const listener = vi.fn()

src/main/agent-hooks/server.ts

@@ -903,7 +903,7 @@ export class AgentHookServer {
       this.state.lastStatusByPaneKey.set(enriched.paneKey, enriched)
       this.scheduleStatusPersist()
       this.notifyStatusChangeListeners()
-      this.onAgentStatus?.(enriched)
+      this.emitEnrichedStatus(enriched)
       return enriched
     }
     const stateReconciledPayload =
@@ -1015,6 +1015,13 @@ export class AgentHookServer {
     this.state.lastStatusByPaneKey.set(enriched.paneKey, enriched)
     this.scheduleStatusPersist()
     this.notifyStatusChangeListeners()
+    this.emitEnrichedStatus(enriched)
+    return enriched
+  }
+
+  // Why: every status emit must reach plugins too, so a new early-return path
+  // upstream cannot silently leave the plugin tap behind the main-window fanout.
+  private emitEnrichedStatus(enriched: EnrichedAgentHookEventPayload): void {
     this.onAgentStatus?.(enriched)
     for (const listener of this.enrichedStatusListeners) {
       try {
@@ -1023,7 +1030,6 @@ export class AgentHookServer {
         console.error('[agent-hooks] enriched status listener threw', err)
       }
     }
-    return enriched
   }
 
   private clearAssistantMessageRetry(paneKey: string): void {