MAJOR UPPDATE: "First Ai"

feat: add AI categorization for products and enhance user management

- Integrated AI service for category suggestions in receipt import and product management.
- Added premium subscription feature for users with corresponding API endpoints.
- Implemented admin interface for managing pending product suggestions.
- Enhanced user management to include premium status and corresponding UI updates.
- Updated database schema to support new fields for premium status and product status.

backend/src/auth/auth.service.ts

@@ -27,7 +27,7 @@ export class AuthService {
       passwordHash,
     });
 
-    return this.issueToken(user.id, user.username, user.role);
+    return this.issueToken(user.id, user.username, user.role, user.isPremium);
   }
 
   async login(dto: LoginDto) {
@@ -37,16 +37,17 @@ export class AuthService {
     const valid = await bcrypt.compare(dto.password, user.passwordHash);
     if (!valid) throw new UnauthorizedException('Felaktigt användarnamn eller lösenord');
 
-    return this.issueToken(user.id, user.username, user.role);
+    return this.issueToken(user.id, user.username, user.role, user.isPremium);
   }
 
-  private issueToken(userId: number, username: string, role: string) {
-    const payload = { sub: userId, username, role };
+  private issueToken(userId: number, username: string, role: string, isPremium: boolean) {
+    const payload = { sub: userId, username, role, isPremium };
     return {
       accessToken: this.jwtService.sign(payload),
       userId,
       username,
       role,
+      isPremium,
     };
   }
 }

backend/src/auth/jwt.strategy.ts

@@ -12,7 +12,7 @@ export class JwtStrategy extends PassportStrategy(Strategy) {
     });
   }
 
-  async validate(payload: { sub: number; username: string; role: string }) {
-    return { userId: payload.sub, username: payload.username, role: payload.role ?? 'user' };
+  async validate(payload: { sub: number; username: string; role: string; isPremium: boolean }) {
+    return { userId: payload.sub, username: payload.username, role: payload.role ?? 'user', isPremium: payload.isPremium ?? false };
   }
 }