fix(agent-rows): read the live tab so late renames and titles surface

Row data patches live entries in place and keeps the tab snapshot from
row creation, so a rename or agent-set title landing after the row was
built never reached the conversation-name resolver. Select the current
tab from the store in the hook; retained rows without a live tab keep
the snapshot fallback.

src/renderer/src/components/dashboard/use-agent-row-conversation-name.test.ts

@@ -4,7 +4,10 @@ import { useAgentRowConversationName } from './use-agent-row-conversation-name'
 import type { DashboardAgentRow } from './useDashboardData'
 
 const storeState = vi.hoisted(() => ({
-  current: { settings: {} } as { current?: unknown; settings: Record<string, unknown> }
+  current: { settings: {}, tabsByWorktree: {} } as {
+    settings: Record<string, unknown>
+    tabsByWorktree: Record<string, unknown[]>
+  }
 }))
 
 // Why: the mocked selector makes the hook a pure function, so tests can call it
@@ -18,7 +21,7 @@ function makeAgent(overrides: Partial<DashboardAgentRow> = {}): DashboardAgentRo
   return {
     paneKey: 'tab-1:leaf-1',
     entry: { prompt: 'fix the sidebar' },
-    tab: { customTitle: 'Patient sync spike', title: '' },
+    tab: { id: 'tab-1', worktreeId: 'wt-1', customTitle: 'Patient sync spike', title: '' },
     agentType: 'claude',
     state: 'working',
     startedAt: 0,
@@ -27,7 +30,7 @@ function makeAgent(overrides: Partial<DashboardAgentRow> = {}): DashboardAgentRo
 }
 
 beforeEach(() => {
-  storeState.current = { settings: {} }
+  storeState.current = { settings: {}, tabsByWorktree: {} }
 })
 
 describe('useAgentRowConversationName', () => {
@@ -36,23 +39,36 @@ describe('useAgentRowConversationName', () => {
   })
 
   it('returns the conversation name when the setting is on', () => {
-    storeState.current = { settings: { agentRowsUseConversationName: true } }
+    storeState.current = { settings: { agentRowsUseConversationName: true }, tabsByWorktree: {} }
     expect(useAgentRowConversationName(makeAgent())).toBe('Patient sync spike')
   })
 
   it('never renames subagent child rows after the parent tab', () => {
-    storeState.current = { settings: { agentRowsUseConversationName: true } }
+    storeState.current = { settings: { agentRowsUseConversationName: true }, tabsByWorktree: {} }
     expect(useAgentRowConversationName(makeAgent({ rowSource: 'subagent' }))).toBeNull()
   })
 
+  it('prefers the live store tab over the stale row snapshot', () => {
+    storeState.current = {
+      settings: { agentRowsUseConversationName: true },
+      // Why: row data patches entries in place and keeps the creation-time tab
+      // snapshot; a rename landing after that must still surface.
+      tabsByWorktree: {
+        'wt-1': [{ id: 'tab-1', worktreeId: 'wt-1', customTitle: 'Renamed later', title: '' }]
+      }
+    }
+    expect(useAgentRowConversationName(makeAgent())).toBe('Renamed later')
+  })
+
   it('honors the generated-titles setting for generated names', () => {
     const agent = makeAgent({
       tab: { customTitle: null, title: '', generatedTitle: 'Fix intake flow' }
     } as Partial<DashboardAgentRow>)
-    storeState.current = { settings: { agentRowsUseConversationName: true } }
+    storeState.current = { settings: { agentRowsUseConversationName: true }, tabsByWorktree: {} }
     expect(useAgentRowConversationName(agent)).toBeNull()
     storeState.current = {
-      settings: { agentRowsUseConversationName: true, tabAutoGenerateTitle: true }
+      settings: { agentRowsUseConversationName: true, tabAutoGenerateTitle: true },
+      tabsByWorktree: {}
     }
     expect(useAgentRowConversationName(agent)).toBe('Fix intake flow')
   })

src/renderer/src/components/dashboard/use-agent-row-conversation-name.ts

@@ -6,6 +6,12 @@ import type { DashboardAgentRow } from './useDashboardData'
 export function useAgentRowConversationName(agent: DashboardAgentRow): string | null {
   const enabled = useAppStore((s) => s.settings?.agentRowsUseConversationName === true)
   const generatedTitlesEnabled = useAppStore((s) => s.settings?.tabAutoGenerateTitle === true)
+  // Why: row data patches live entries in place and keeps the tab snapshot from
+  // row creation, so renames/agent titles landing after that would never show.
+  // Read the current tab from the store; retained rows fall back to the snapshot.
+  const liveTab = useAppStore((s) =>
+    s.tabsByWorktree[agent.tab.worktreeId]?.find((tab) => tab.id === agent.tab.id)
+  )
   if (!enabled) {
     return null
   }
@@ -14,5 +20,5 @@ export function useAgentRowConversationName(agent: DashboardAgentRow): string |
   if (agent.rowSource === 'subagent') {
     return null
   }
-  return getAgentRowConversationName(agent.tab, agent.agentType, generatedTitlesEnabled)
+  return getAgentRowConversationName(liveTab ?? agent.tab, agent.agentType, generatedTitlesEnabled)
 }