Backend Complete: Interface Refactoring & Service Container Enhancements

Repository Interface Optimization:
- Created IBaseRepository.ts and IPaginatedRepository.ts
- Refactored all 7 repository interfaces to extend base interfaces
- Eliminated ~200 lines of redundant code (70% reduction)
- Improved type safety and maintainability

 Dependency Injection Improvements:
- Added EmailService and GameTokenService to DIContainer
- Updated CreateUserCommandHandler constructor for DI
- Updated RequestPasswordResetCommandHandler constructor for DI
- Enhanced testability and service consistency

 Environment Configuration:
- Created comprehensive .env.example with 40+ variables
- Organized into 12 logical sections (Database, Security, Email, etc.)
- Added security guidelines and best practices
- Documented all backend environment requirements

 Documentation:
- Added comprehensive codebase review
- Created refactoring summary report
- Added frontend implementation guide

Impact: Improved code quality, reduced maintenance overhead, enhanced developer experience

SerpentRace_Backend/src/Domain/Game/GameAggregate.ts

@@ -0,0 +1,103 @@
+import { Entity, PrimaryGeneratedColumn, Column, CreateDateColumn, UpdateDateColumn } from 'typeorm';
+import { Consequence, CardType } from '../Deck/DeckAggregate';
+
+export enum GameState {
+    WAITING = 0,
+    ACTIVE = 1,
+    FINISHED = 2,
+    CANCELLED = 3
+}
+
+export enum LoginType {
+    PUBLIC = 0,
+    PRIVATE = 1,
+    ORGANIZATION = 2
+}
+
+export enum DeckType {
+    JOCKER = 0,
+    LUCK = 1,
+    QUEST = 2
+}
+
+export interface GameCard {
+    cardid: string;
+    question?: string;
+    answer?: any; // Support complex answer structures (string, object, array)
+    type?: CardType; // Card type for validation logic
+    consequence?: Consequence | null;
+    played?: boolean;
+    playerid?: string;
+}
+
+export interface GameDeck {
+    deckid: string;
+    decktype: DeckType;
+    cards: GameCard[];
+}
+
+@Entity('Games')
+export class GameAggregate {
+    @PrimaryGeneratedColumn('uuid')
+    id!: string;
+
+    @Column({ type: 'varchar', length: 10, unique: true })
+    gamecode!: string;
+
+    @Column({ type: 'int' })
+    maxplayers!: number;
+
+    @Column({ type: 'int', default: LoginType.PUBLIC })
+    logintype!: LoginType;
+
+    @Column({ type: 'varchar', length: 255, nullable: true })
+    createdby!: string | null;
+
+    @Column({ type: 'varchar', length: 255, nullable: true })
+    orgid!: string | null;
+
+    @Column({ type: 'json' })
+    gamedecks!: GameDeck[];
+
+    @Column({ type: 'json', default: () => "'[]'" })
+    players!: string[];
+
+    @Column({ type: 'boolean', default: false })
+    started!: boolean;
+
+    @Column({ type: 'boolean', default: false })
+    finished!: boolean;
+
+    @Column({ type: 'varchar', length: 255, nullable: true })
+    winner!: string | null;
+
+    @Column({ type: 'int', default: GameState.WAITING })
+    state!: GameState;
+
+    @CreateDateColumn({ name: 'create_date' })
+    createdate!: Date;
+
+    @Column({ type: 'timestamp', nullable: true, name: 'start_date' })
+    startdate!: Date | null;
+
+    @Column({ type: 'timestamp', nullable: true, name: 'end_date' })
+    enddate!: Date | null;
+
+    @UpdateDateColumn({ name: 'update_date' })
+    updatedate!: Date;
+}
+
+// Board Generation Types
+export interface GameField {
+    position: number;
+    type: 'regular' | 'positive' | 'negative' | 'luck';
+    stepValue?: number;
+}
+
+export interface BoardData {
+    gameId?: string;
+    fields: GameField[];
+    generationComplete?: boolean;
+    generatedAt?: Date;
+    error?: string;
+}