Plan

Context

Improvements to the new agent screen in the app.

Iteration 1: Remember the last used config in the new agent screen.
- Restore the previous behavior where the config was persisted.
- When user creates an agent, save the selected config (provider, model, mode, working directory, host).
- On next visit to new agent screen, pre-populate with last used config.
- Done (2025-12-28 23:35): WHAT: packages/app/src/app/agent/new.tsx:77-592 now builds initial values only from provided params and persists form preferences on create; packages/app/src/hooks/use-agent-form-state.ts:309-356 adds explicit persistence helper. RESULT: new agent screen rehydrates last-used config and saves selections on create. EVIDENCE: Not run (not requested).
Iteration 2: Show the selected permissions mode in the agent selector trigger.
- The agent selector dropdown trigger currently shows provider and model (e.g., "Claude · auto").
- It should also display the selected permissions mode (e.g., "Claude · auto · Plan").
- Update the trigger label to include the mode.