Rename iFeels to Feels across entire codebase

- Bundle IDs: com.tt.ifeel* → com.tt.feels*
- App Groups: group.com.tt.ifeel* → group.com.tt.feels*
- iCloud containers: iCloud.com.tt.ifeel* → iCloud.com.tt.feels*
- IAP product IDs: com.tt.ifeel.IAP.* → com.tt.feels.IAP.*
- URLs: ifeels.app → feels.app
- Logger subsystems and dispatch queues
- Product names and display names

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

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

Shared/Services/WatchConnectivityManager.swift

@@ -17,7 +17,7 @@ final class WatchConnectivityManager: NSObject, ObservableObject {
 
     static let shared = WatchConnectivityManager()
 
-    private static let logger = Logger(subsystem: "com.tt.ifeel", category: "WatchConnectivity")
+    private static let logger = Logger(subsystem: "com.tt.feels", category: "WatchConnectivity")
 
     private var session: WCSession?