Add premium features and reorganize Settings tab

Premium Features:
- Journal notes and photo attachments for mood entries
- Data export (CSV and PDF reports)
- Privacy lock with Face ID/Touch ID
- Apple Health integration for mood correlation
- 4 new personality packs (Motivational Coach, Zen Master, Best Friend, Data Analyst)

Settings Tab Reorganization:
- Combined Customize and Settings into single tab with segmented control
- Added upgrade banner with trial countdown above segment
- "Why Upgrade?" sheet showing all premium benefits
- Subscribe button opens improved StoreKit 2 subscription view

UI Improvements:
- Enhanced subscription store with feature highlights
- Entry detail view for viewing/editing notes and photos
- Removed duplicate subscription banners from tab content

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

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

Shared/Models/MoodEntryModel.swift

@@ -35,6 +35,10 @@ final class MoodEntryModel {
     var canEdit: Bool
     var canDelete: Bool
 
+    // Journal & Media (NEW)
+    var notes: String?
+    var photoID: UUID?
+
     // Computed properties
     var mood: Mood {
         Mood(rawValue: moodValue) ?? .missing
@@ -49,7 +53,9 @@ final class MoodEntryModel {
         mood: Mood,
         entryType: EntryType,
         canEdit: Bool = true,
-        canDelete: Bool = true
+        canDelete: Bool = true,
+        notes: String? = nil,
+        photoID: UUID? = nil
     ) {
         self.forDate = forDate
         self.moodValue = mood.rawValue
@@ -58,6 +64,8 @@ final class MoodEntryModel {
         self.entryType = entryType.rawValue
         self.canEdit = canEdit
         self.canDelete = canDelete
+        self.notes = notes
+        self.photoID = photoID
     }
 
     // Convenience initializer for raw values
@@ -68,7 +76,9 @@ final class MoodEntryModel {
         timestamp: Date = Date(),
         weekDay: Int? = nil,
         canEdit: Bool = true,
-        canDelete: Bool = true
+        canDelete: Bool = true,
+        notes: String? = nil,
+        photoID: UUID? = nil
     ) {
         self.forDate = forDate
         self.moodValue = moodValue
@@ -77,5 +87,7 @@ final class MoodEntryModel {
         self.entryType = entryType
         self.canEdit = canEdit
         self.canDelete = canDelete
+        self.notes = notes
+        self.photoID = photoID
     }
 }