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.controller.d.ts

@@ -0,0 +1,13 @@
+import { Response } from 'express';
+import { GoalsService } from './goals.service';
+export declare class GoalsController {
+    private goalsService;
+    constructor(goalsService: GoalsService);
+    getGoals(req: any): Promise<{
+        user: any;
+        goals: import("../models/user-goal.model").UserGoal;
+        bmr: any;
+        tdee: any;
+    }>;
+    updateGoals(req: any, body: any, res: Response): Promise<void>;
+}