Refactor StoreKit 2 subscription system and add interactive vote widget

## StoreKit 2 Refactor
- Rewrote IAPManager with clean enum-based state model (SubscriptionState)
- Added native SubscriptionStoreView for iOS 17+ purchase UI
- Subscription status now checked on every app launch
- Synced subscription status to UserDefaults for widget access
- Simplified PurchaseButtonView and IAPWarningView
- Removed unused StatusInfoView

## Interactive Vote Widget
- New FeelsVoteWidget with App Intents for mood voting
- Subscribers can vote directly from widget, shows stats after voting
- Non-subscribers see "Tap to subscribe" which opens subscription store
- Added feels:// URL scheme for deep linking

## Firebase Removal
- Commented out Firebase imports and initialization
- EventLogger now prints to console in DEBUG mode only

## Other Changes
- Added fallback for Core Data when App Group unavailable
- Added new localization strings for subscription UI
- Updated entitlements and Info.plist

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

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

Shared/views/SettingsView/SettingsView.swift

@@ -147,30 +147,7 @@ struct SettingsView: View {
     }
     
     private var subscriptionInfoView: some View {
-        ZStack {
-            theme.currentTheme.secondaryBGColor
-            VStack {
-                PurchaseButtonView(iapManager: iapManager, showManageSubClosure: {
-                    Task {
-                        await
-                        self.showManageSubscription()
-                    }
-                }, showCountdownTimer: true)
-                
-                if iapManager.showIAPWarning {
-                    Button(action: {
-                        Task {
-                            await iapManager.restore()
-                        }
-                    }, label: {
-                        Text(String(localized: "purchase_view_restore"))
-                            .font(.title3)
-                            .padding([.top, .bottom])
-                    })
-                }
-            }
-        }
-        .cornerRadius(Constants.viewsCornerRaidus, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
+        PurchaseButtonView(iapManager: iapManager)
     }
     
     private var closeButtonView: some View {
@@ -245,7 +222,9 @@ struct SettingsView: View {
                 tmpDate =  Calendar.current.date(byAdding: .minute, value: -59, to: tmpDate)!
                 tmpDate =  Calendar.current.date(byAdding: .second, value: -45, to: tmpDate)!
                 firstLaunchDate = tmpDate
-                iapManager.updateEverything()
+                Task {
+                    await iapManager.checkSubscriptionStatus()
+                }
             }, label: {
                 Text("Set first launch date back 29 days, 23 hrs, 45 seconds")
                     .foregroundColor(textColor)
@@ -255,13 +234,15 @@ struct SettingsView: View {
         .fixedSize(horizontal: false, vertical: true)
         .cornerRadius(Constants.viewsCornerRaidus, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
     }
-    
+
     private var resetLaunchDate: some View {
         ZStack {
             theme.currentTheme.secondaryBGColor
             Button(action: {
                 firstLaunchDate =  Date()
-                iapManager.updateEverything()
+                Task {
+                    await iapManager.checkSubscriptionStatus()
+                }
             }, label: {
                 Text("Reset luanch date to current date")
                     .foregroundColor(textColor)
@@ -590,16 +571,6 @@ struct SettingsView: View {
         .cornerRadius(Constants.viewsCornerRaidus, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
     }
     
-    func showManageSubscription() async {
-        if let windowScene = UIApplication.shared.connectedScenes.first as? UIWindowScene{
-            do {
-                try await StoreKit.AppStore.showManageSubscriptions(in: windowScene)
-                iapManager.updateEverything()
-            } catch {
-                print("Sheet can not be opened")
-            }
-        }
-    }
 }
 
 struct TextFile: FileDocument {