Remove Moshi dependency entirely, completing the migration to kotlinx.serialization. All JSON serialization now uses kotlinx with explicit @SerialName annotations for wire format stability.
- Migrate PodDeviceCache from Moshi to kotlinx Json injection
- Add MapIntByteArrayBase64Serializer for BleScanResult cache compat
- Strip @JsonClass/@Json annotations from all dual-annotated classes
- Delete Moshi adapters, ProGuard rules, and build config
- Convert compat tests to pure kotlinx round-trip tests
Extract pure decision functions from AutoConnect and PopUpReaction for testability, following the existing PlayPause pattern. Add FakeDataStoreValue test helper.
Fix reversed Duration.between args in PopUpReaction connection monitor that caused the false-positive age filter to never trigger.
Replace FlowPreference<T> wrapping SharedPreferences with DataStoreValue<T> wrapping AndroidX DataStore. Includes SharedPreferencesMigration for preserving existing user data, kotlinx-serialization for complex types (replacing Moshi for preferences), and comprehensive unit tests for the new infrastructure.