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/models/food-item.model.d.ts

@@ -0,0 +1,24 @@
+import { Model } from 'sequelize-typescript';
+import { MealFood } from './meal-food.model';
+import { PlannedFood } from './planned-food.model';
+export declare class FoodItem extends Model {
+    name: string;
+    name_tagalog: string;
+    category: string;
+    calories: number;
+    protein_g: number;
+    carbs_g: number;
+    fat_g: number;
+    fiber_g: number;
+    sugar_g: number;
+    sodium_mg: number;
+    serving_size_g: number;
+    serving_description: string;
+    source: string;
+    is_filipino: boolean;
+    is_favorite: boolean;
+    api_data: string;
+    last_updated: Date;
+    mealFoods: MealFood[];
+    plannedFoods: PlannedFood[];
+}