fix(ai-vault): tolerate unavailable Cursor CLI in session rows

src/renderer/src/lib/ai-vault-cursor-command.test.ts

@@ -1,6 +1,9 @@
 import { describe, expect, it } from 'vitest'
 import type { AppState } from '@/store/types'
-import { resolveAiVaultCursorCommand } from './ai-vault-cursor-command'
+import {
+  resolveAiVaultCursorCommand,
+  resolveAiVaultResumeCommandOverride
+} from './ai-vault-cursor-command'
 
 function state(
   overrides: Partial<
@@ -100,3 +103,23 @@ describe('resolveAiVaultCursorCommand', () => {
     ).toBe('cursor-dev')
   })
 })
+
+describe('resolveAiVaultResumeCommandOverride', () => {
+  it('leaves incomplete Cursor sessions inert while their resume controls are disabled', () => {
+    const source = state()
+
+    expect(
+      resolveAiVaultResumeCommandOverride({
+        state: source,
+        session: { agent: 'cursor', cwd: '/work/demo-project' }
+      })
+    ).toBeUndefined()
+    expect(
+      resolveAiVaultResumeCommandOverride({
+        state: source,
+        session: { agent: 'cursor', cwd: null },
+        commandOverride: 'cursor-agent'
+      })
+    ).toBeUndefined()
+  })
+})

src/renderer/src/lib/ai-vault-cursor-command.ts

@@ -125,11 +125,8 @@ export function resolveAiVaultResumeCommandOverride(args: {
   }
   const command = resolveAiVaultCursorCommand(args)
   if (!args.session.cwd || !command?.trim()) {
-    throw new Error(
-      args.session.cwd
-        ? 'Cursor CLI not detected on this host.'
-        : 'Cursor did not record a resumable workspace for this session.'
-    )
+    // Resume controls gate these incomplete sessions; row rendering still builds an inert startup.
+    return undefined
   }
   return command
 }

src/renderer/src/lib/ai-vault-resume-command.test.ts

@@ -151,6 +151,26 @@ describe('ai vault resume command runtime', () => {
     )
   })
 
+  it('builds disabled Cursor row startup data when the CLI is unavailable', () => {
+    const state = makeState({ worktreePath: '/work/demo-project' })
+    state.repos = [{ id: 'repo-1', path: '/work/demo-project', connectionId: 'ssh-1' }] as never
+
+    expect(
+      buildAiVaultResumeStartupForWorktree({
+        state,
+        worktreeId: 'repo-1::worktree-1',
+        session: {
+          agent: 'cursor',
+          sessionId: 'session one',
+          cwd: '/work/demo-project',
+          codexHome: null,
+          executionHostId: 'ssh:ssh-1',
+          executionHostPlatform: 'linux'
+        }
+      })
+    ).toEqual({ command: "cd '/work/demo-project' && cursor-agent --resume 'session one'" })
+  })
+
   it('queues a PowerShell-valid local OMP resume by absolute transcript path', () => {
     // Regression: local rebuilds must forward session.filePath so OMP resumes by
     // path, and queued Windows commands must match the live tab shell.