- fix #4: Huawei device sync
- fix #5: PAI Consistency Between Devices, Problem: For example, Garmin Fenix 7 and Colmi R09 showed different PAI scores for same activities. Cause: Colmi's 5-minute sampling used averaging (overestimated), while Garmin's 1-minute sampling used interpolation (accurate). Fix: Unified zone-based calculation for all devices. Colmi scores now more accurate, both devices better comparable.
- Remove sensor permission, enable automatic screen rotation without

