- Keep terminal working titles static with a colon separator on Windows instead of scheduling animated spinner updates.
- Update terminal title builder and state machine to check the platform and bypass timer intervals on win32.
- Deduplicate terminal title writes globally across all platforms.
- Adopt `SetConsoleTitleW` via `bun:ffi` for Windows terminal updates instead of OSC writes.
Kept the bare 'π' brand per owner direction: the separator between the
brand and the session label now carries the state — '>' when it's the
user's turn (idle), animated spinner frames while working, '!' when the
agent is blocked on the user. Disabled ('tui.titleState' off) renders the
pre-state 'π: label' layout. Updated the state/runtime tests to the new
contract.
The run-state `working` spinner arms a periodic setInterval that re-emits
the terminal title as an OSC-0 write each tick. shutdown() restored the
shell title via popTerminalTitle() but never stopped the interval, so a
pending tick could fire after the restore and leave the parent shell tab
reading a stale spinner title post-exit. Wire the existing
disposeTerminalTitleState() into shutdown() before popTerminalTitle().
Co-Authored-By: seal <noreply@sealedsecurity.com>
The terminal title (OSC 0) now carries a run-state prefix: an animated spinner while the agent is working and a steady dot when idle, so a backgrounded tab/pane shows which session is busy vs done. `setTerminalTitleState` also exposes an `attention` ([!]) state for callers; rendering is gated by `tui.titleState` (default on), dedups writes, and is TTY-guarded.
Refs can1357/oh-my-pi#3587
can1357