[FEATURE]: TUI should show pending permissions or questions when attaching to a session #10564

Feature hasn't been suggested before.

• I have verified this feature I'm about to request hasn't been suggested before.

Describe the enhancement you want to request

When using opencode attach to connect to a running server, the TUI does not display permissions or questions that were asked while no TUI was attached. This blocks the detach/reattach workflow.

You can reproduce by:

• Start opencode in server mode: opencode serve
• Attach in another terminal: opencode attach http://127.0.0.1:4096
• Send a prompt that triggers the AI to ask a question
• Detach from the TUI
• Reattach: opencode attach http://127.0.0.1:4096 --session

Expected: The pending question should be displayed in the TUI
Actual: The question is not shown; the session appears stuck on N questions asked

The TUI's sync context src/cli/cmd/tui/context/sync.tsx only populates store.permission and store.question from SSE events permission.asked, question.asked. When a TUI attaches after the event has already fired, it never receives the event and doesn't know about pending items.

The server already has endpoints to list pending items:

• GET /permission - Lists all pending permission requests
• GET /question - Lists all pending question requests

But the TUI doesn't call these during bootstrap.

I think we should add API calls to the bootstrap sequence in sync.tsx to fetch pending permissions and questions:

sdk.client.permission.list().then((x) => {
  const grouped: Record<string, PermissionRequest[]> = {}
  for (const p of x.data ?? []) {
    if (!grouped[p.sessionID]) grouped[p.sessionID] = []
    grouped[p.sessionID]!.push(p)
  }
  setStore("permission", reconcile(grouped))
}),
sdk.client.question.list().then((x) => {
  const grouped: Record<string, QuestionRequest[]> = {}
  for (const q of x.data ?? []) {
    if (!grouped[q.sessionID]) grouped[q.sessionID] = []
    grouped[q.sessionID]!.push(q)
  }
  setStore("question", reconcile(grouped))
}),