Enable CloudKit sync for Watch app and fix WCSession handling

- Watch now uses CloudKit for data persistence (syncs automatically with iPhone)
- Added iCloud/CloudKit entitlements to Watch app (debug and release)
- Fixed WCSession delegate to handle messages with reply handler
- Watch UI now shows "Already Rated" screen after voting
- Invalidate LiveActivityScheduler cache when mood is logged
- WCSession now used only for immediate UI updates, not data persistence

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Feels Watch App/Feels Watch AppDebug.entitlements

@@ -6,5 +6,13 @@
 	<array>
 		<string>group.com.tt.feelsDebug</string>
 	</array>
+	<key>com.apple.developer.icloud-services</key>
+	<array>
+		<string>CloudKit</string>
+	</array>
+	<key>com.apple.developer.icloud-container-identifiers</key>
+	<array>
+		<string>iCloud.com.tt.feelsDebug</string>
+	</array>
 </dict>
 </plist>