## What changed
- Fork the selected conversation and open the new session with `f`, configurable through `agents.fork` in the TUI keymap.
- Move the default search shortcuts to `F3` and `/`, preserving unshadowed defaults when custom bindings conflict.
- Keep queued input on the source conversation while attaching and forking, and require closing an open side conversation before forking another task.
- Expose the fork action in command-center help and the keymap picker.
## Testing
Add regression coverage for queued-input preservation, side-conversation protection, configurable fork shortcuts, metadata editing, disconnected actions, and search fallback bindings. Update help and keymap snapshots.
GitOrigin-RevId: b11ae21ef6a2053609b31ce97c646104f18806a3