Home wellness
Sugar streak tracking
Persists streak counters in SharedPreferences and Firestore and syncs values to home widgets.
Implemented Verified from source User-facing
In one sentence
StreakService owns streak persistence and widget updates.
Current behavior
Reads/writes user streak fields locally and on users/{uid}, updates
HomeWidget data, and participates in relapse resets and post-purchase init.
Current state
Implemented; widget sync partial due to app group placeholder. Verified-from-source.