Switching providers or toggling proxy takeover on Windows flashed a
transient cmd window and froze the UI for up to a couple of seconds.
Three fixes:
- Spawn `codex debug models --bundled` with CREATE_NO_WINDOW so the
console child of the GUI-subsystem app (npm's codex.cmd runs via
cmd.exe) no longer opens a visible window.
- Cache the ProxyChat model catalog template in a process-wide OnceCell:
only successful loads are cached, failures stay retryable, so the
Codex CLI starts at most once per app run instead of on every switch.
- Run switch_provider via spawn_blocking: sync Tauri commands execute on
the main thread, so the blocking catalog generation (and the
block_on'd per-app switch lock) froze the UI. Concurrency is already
serialized by ProxyService::lock_switch_for_app.
Jason
3bc828aecc