Add AI-powered mental wellness features: Reflection Companion, Pattern Tags, Weekly Digest

Three new Foundation Models features to deepen user engagement with mental wellness:

1. AI Reflection Companion — personalized feedback after completing guided reflections,
   referencing the user's actual words with personality-pack-adapted tone
2. Mood Pattern Tags — auto-extracts theme tags (work, family, stress, etc.) from notes
   and reflections, displayed as colored pills on entries
3. Weekly Emotional Digest — BGTask-scheduled Sunday digest with headline, summary,
   highlight, and intention; shown as card in Insights tab with notification

All features: on-device (zero cost), premium-gated, iOS 26+ with graceful degradation.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Reflect--iOS--Info.plist

@@ -6,6 +6,7 @@
 	<array>
 		<string>com.88oakapps.reflect.dbUpdateMissing</string>
 		<string>com.88oakapps.reflect.weatherRetry</string>
+		<string>com.88oakapps.reflect.weeklyDigest</string>
 	</array>
 	<key>NSLocationWhenInUseUsageDescription</key>
 	<string>Reflect uses your location to show weather details for your mood entries.</string>