build: add TypeScript configuration and generate declaration files

- Add tsconfig.json for TypeScript compilation with declaration and source map generation
- Generate .d.ts declaration files for all modules, services, controllers, and models
- Update package.json with NestJS dependencies and TypeScript development tools
- Include database files in the distribution output for persistence

dist/goals/goals.service.d.ts

@@ -0,0 +1,20 @@
+import { User } from '../models/user.model';
+import { UserGoal } from '../models/user-goal.model';
+import { UtilsService } from '../utils/utils.service';
+export declare class GoalsService {
+    private userModel;
+    private userGoalModel;
+    private utilsService;
+    constructor(userModel: typeof User, userGoalModel: typeof UserGoal, utilsService: UtilsService);
+    getGoals(userId: number): Promise<{
+        goals: UserGoal;
+        bmr: any;
+        tdee: any;
+        user: User;
+    }>;
+    updateGoals(userId: number, data: any): Promise<{
+        success: boolean;
+        user: User;
+        goals: UserGoal;
+    }>;
+}