v0.15.10 — forced-switch retry + longer settles

Two fixes for the forced-switch handler that was failing silently:

1. Retry up to 3 times. The previous forced_switch_attempted flag was one-shot — if the first attempt failed (menu transient timing), we never retried and the advance loop fell through to normal handlers, looping on phase 5 pressing A on Lotad.
2. Longer settles. Live-walked the exact sequence manually with the wider settles (80/30/20/120/300 frames) and it worked. Bumped the auto handler to match.