Complete visual overhaul matching Month view style:
- GitHub-style heatmap grid (12 columns for months, days as rows)
- Donut chart showing mood distribution with total days in center
- Bar chart stats alongside donut chart
- Collapsible stats section with chevron toggle
- YearCard, YearHeatmapGrid, MonthColumn, YearHeatmapCell components
- Consistent styling with Month view redesign
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Replace circles with heatmap-style grid (tight 2pt spacing, rounded squares)
- Add weekday header labels (S M T W T F S)
- Replace number stats with mini horizontal bar charts
- Add collapsible stats section with chevron toggle
- Modern card layout with 16pt rounded corners
- Months sorted newest first
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
## 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>
