v7: store-and-forward architecture

BREAKING: Complete rewrite of data flow to fix network isolation issue.

Problem: When connected to Bee's WiFi AP (192.168.0.10), the phone has
NO internet access. The Bee AP is just a direct connection to the dashcam
with no upstream gateway. The old design tried to simultaneously pull from
Bee and push to ADAMaps, which fundamentally couldn't work.

Solution: Store-and-forward with two independent subsystems:

1. BeeCollectorService - Collection only
   - Binds to unvalidated WiFi (Bee AP)
   - Polls Bee for detections
   - Stores to local Room database
   - Does NOT attempt internet uploads

2. AdaMapsUploadWorker - Upload only
   - WorkManager-based background worker
   - Only runs when device has VALIDATED internet
   - Reads from local DB, batch uploads to ADAMaps
   - Marks as synced, retries with backoff

New components:
- Room database (DetectionEntity, DetectionDao, VarroaDatabase)
- NetworkStateMonitor for tracking validated vs unvalidated networks
- Improved UI with BEE/LOCAL/UPLOAD indicators
- Manual sync trigger when internet + pending data

Version: 1.7.0 (versionCode 7)

app/src/main/AndroidManifest.xml

@@ -33,6 +33,13 @@
             </intent-filter>
         </activity>
 
+        <!-- v7: New Bee Collector Service (store-and-forward) -->
+        <service
+            android:name=".service.BeeCollectorService"
+            android:exported="false"
+            android:foregroundServiceType="dataSync" />
+
+        <!-- Legacy ForwardingService (deprecated, kept for migration) -->
         <service
             android:name=".service.ForwardingService"
             android:exported="false"