fix(terminal): retain renames before renderer pane hydration

src/main/runtime/orca-runtime-resolve-worktree-removal-target.ts

@@ -134,7 +134,13 @@ export class OrcaRuntimeWithResolveWorktreeRemovalTarget extends OrcaRuntimeWith
           return { handle, tabId: leaf.tabId, title }
         }
       }
-      return { handle, tabId: pty.pty.tabId ?? pty.record.tabId, title }
+      const tabId = pty.pty.tabId ?? pty.record.tabId
+      // A notifier can exist before its pane graph; retain the rename on the known tab.
+      if (this.notifier?.renameTerminal && tabId) {
+        this.persistHeadlessTerminalTitle(pty.pty.worktreeId, tabId, title)
+        this.notifier.renameTerminal(tabId, title)
+      }
+      return { handle, tabId, title }
     }
     this.assertGraphReady()
     const { leaf } = this.getLiveLeafForHandle(handle)

src/main/runtime/orca-runtime-terminal-rename-retention.test.ts

@@ -0,0 +1,66 @@
+import './orca-runtime-test-lifecycle.spec'
+import type { RuntimeStore } from './runtime-store-contract'
+import { describe, expect, it, vi } from 'vitest'
+import { OrcaRuntimeService } from './orca-runtime-test-mocks.spec'
+import {
+  HEADLESS_LEAF_ID,
+  TEST_WORKTREE_ID,
+  makeRuntimeStoreWithWorkspaceSession,
+  makeWorkspaceSessionWithHeadlessTerminal
+} from './orca-runtime-test-fixtures.spec'
+
+describe('terminal rename before renderer graph hydration', () => {
+  it.each(['Media Engine Orch', null])(
+    'persists and forwards title %s across PTY replacement',
+    async (title) => {
+      const session = makeWorkspaceSessionWithHeadlessTerminal()
+      session.tabsByWorktree[TEST_WORKTREE_ID][0].customTitle = 'Previous name'
+      const { runtimeStore, getSession } = makeRuntimeStoreWithWorkspaceSession(session)
+      // oxlint-disable-next-line typescript/consistent-type-assertions -- SAFETY: The shared fixture supplies RuntimeStore methods; its legacy Mock return type loses callable signatures.
+      const checkedStore = runtimeStore as RuntimeStore
+      const runtime = new OrcaRuntimeService(checkedStore)
+      const renameTerminal = vi.fn()
+      runtime.setPtyController({
+        spawn: vi.fn(async () => ({ id: 'omp-initial-pty' })),
+        write: () => true,
+        kill: () => true,
+        getForegroundProcess: async () => null
+      })
+      runtime.setNotifier({
+        worktreesChanged: vi.fn(),
+        reposChanged: vi.fn(),
+        activateWorktree: vi.fn(),
+        createTerminal: vi.fn(),
+        splitTerminal: vi.fn(),
+        renameTerminal,
+        focusTerminal: vi.fn(),
+        closeTerminal: vi.fn(),
+        sleepWorktree: vi.fn(),
+        terminalFitOverrideChanged: vi.fn(),
+        terminalDriverChanged: vi.fn()
+      })
+      const created = await runtime.createTerminal(`id:${TEST_WORKTREE_ID}`, {
+        tabId: 'host-tab',
+        leafId: HEADLESS_LEAF_ID
+      })
+
+      await runtime.renameTerminal(created.handle, title)
+
+      expect(getSession().tabsByWorktree[TEST_WORKTREE_ID][0].customTitle).toBe(title)
+      expect(renameTerminal).toHaveBeenCalledWith('host-tab', title)
+      runtime.onPtyExit('omp-initial-pty', 0)
+      const restored = new OrcaRuntimeService(checkedStore)
+      restored.setPtyController({
+        spawn: vi.fn(async () => ({ id: 'omp-replacement-pty' })),
+        write: () => true,
+        kill: () => true,
+        getForegroundProcess: async () => null
+      })
+      await restored.createTerminal(`id:${TEST_WORKTREE_ID}`, {
+        tabId: 'host-tab',
+        leafId: HEADLESS_LEAF_ID
+      })
+      expect(getSession().tabsByWorktree[TEST_WORKTREE_ID][0].customTitle).toBe(title)
+    }
+  )
+})