- Add core:window:allow-set-title to capabilities/default.json. Tauri 2
rejects setTitle() from the frontend unless the capability is
explicitly granted; without this the window-title feature silently
fell back to "QBZ" in every case.
- Login logo: 175px -> 140px (-20%) per feedback.
- Drop the debug console logging on the title effect now that the
wiring is confirmed working; keep the warn-on-failure.
cc
vicrodh
fa7758f5bb