fix(runtime): retire stale pane agent identity

src/main/runtime/orca-runtime-provider-reattach-launch-identity.test.ts

@@ -73,4 +73,28 @@ describe('provider reattach launch identity', () => {
       launchIncarnationId: null
     })
   })
+
+  it('retires daemon launch identity when the agent command finishes', () => {
+    const runtime = new OrcaRuntimeService(null)
+
+    runtime.registerPty('pty-finished-reattach', WORKTREE_ID, null, {
+      tabId: TAB_ID,
+      leafId: LEAF_ID,
+      incarnationId: INCARNATION_ID,
+      providerReattachLaunchIdentity: {
+        incarnationId: INCARNATION_ID,
+        launchAgent: 'codex'
+      }
+    })
+    runtime.emitDaemonPtyTransientFact('pty-finished-reattach', {
+      kind: 'command-finished',
+      exitCode: 0
+    })
+
+    expect(getPty(runtime, 'pty-finished-reattach')).toMatchObject({
+      launchAgent: null,
+      launchToken: null,
+      launchIncarnationId: null
+    })
+  })
 })

src/main/runtime/orca-runtime.test.ts

@@ -13330,6 +13330,7 @@ describe('OrcaRuntimeService', () => {
 
     const terminal = await runtime.createTerminal(`path:${TEST_WORKTREE_PATH}`, {
       command: 'codex',
+      launchAgent: 'codex',
       launchConfig: { agentCommand: 'codex', agentArgs: '', agentEnv: {} }
     })
     const spawnEnv =
@@ -13346,6 +13347,9 @@ describe('OrcaRuntimeService', () => {
         launchToken: spawnEnv.ORCA_AGENT_LAUNCH_TOKEN
       })
     ).toBeDefined()
+    expect((await runtime.listTerminals()).terminals).toEqual([
+      expect.objectContaining({ handle: terminal.handle, agentIdentity: 'codex' })
+    ])
 
     runtime.onPtyData('pty-authority', '\x1b]133;D;0\x07', 100)
 
@@ -13356,6 +13360,9 @@ describe('OrcaRuntimeService', () => {
         launchToken: spawnEnv.ORCA_AGENT_LAUNCH_TOKEN
       })
     ).toBeUndefined()
+    expect((await runtime.listTerminals()).terminals).toEqual([
+      expect.not.objectContaining({ agentIdentity: expect.anything() })
+    ])
   })
 
   it('retires only receipted restored PTY authority on command completion and exit', () => {

src/main/runtime/orca-runtime.ts

@@ -14063,13 +14063,14 @@ export class OrcaRuntimeService {
       return
     }
     const receipt = this.restoredOrchestrationAuthorityByPtyId.get(ptyId)
-    if (!pty.launchToken && !receipt) {
+    if (!pty.launchToken && !receipt && !pty.launchAgent) {
       return
     }
     const paneKeys = this.collectPaneKeysForPty(ptyId)
     this.restoredOrchestrationAuthorityByPtyId.delete(ptyId)
     pty.launchToken = null
     pty.launchIncarnationId = null
+    pty.launchAgent = null
     for (const paneKey of paneKeys) {
       this.retireAgentHookCompatibilityAuthorityFn?.(paneKey)
     }