[ISSUE-10] Add card collection integration to deck manager

Implemented comprehensive collection management features:

Backend:
- Created collectionService with 9 API functions
- Added useCollection React hook for state management
- Implemented batch processing for performance
- Added full authentication and authorization

Frontend:
- Enhanced DeckManager with collection status indicators
- Added "Add All Missing Cards" bulk operation button
- Added individual "Add Card" buttons for missing cards
- Implemented loading states and error handling
- Added responsive design with visual badges

Features:
- Visual indicators (yellow for missing, green for owned)
- Bulk add all missing cards functionality
- Individual card addition with quantity tracking
- Real-time collection synchronization
- Success/error notifications

Tests: Build passing (5.98s), linting passing, TypeScript passing

Resolves: #ISSUE-10

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

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

src/types/index.ts

@@ -16,6 +16,20 @@ export interface Card {
   type_line?: string;
   oracle_text?: string;
   colors?: string[];
+  prices?: {
+    usd?: string;
+    usd_foil?: string;
+    eur?: string;
+  };
+}
+
+export interface Collection {
+  id: string;
+  user_id: string;
+  card_id: string;
+  quantity: number;
+  created_at: string;
+  updated_at: string;
 }
 
 export interface Deck {
@@ -34,4 +48,4 @@ export interface CardEntity {
   card_id: string;
   quantity: number;
   is_commander: boolean;
-}
+}