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

src/dashboard/progress.controller.ts

@@ -0,0 +1,63 @@
+import { Controller, Get, Render, UseGuards, Req, Query } from '@nestjs/common';
+import { AuthenticatedGuard } from '../auth/guards/authenticated.guard';
+import { UtilsService } from '../utils/utils.service';
+
+@Controller('progress')
+@UseGuards(AuthenticatedGuard)
+export class ProgressController {
+  constructor(private utilsService: UtilsService) {}
+
+  @Get()
+  @Render('progress')
+  async getProgress(@Req() req, @Query('days') daysQuery: string) {
+    try {
+      const days = parseInt(daysQuery) || 30;
+
+      const weightTrend = await this.utilsService.getWeightTrend(req.user.id, days);
+      const calorieTrend = await this.utilsService.getCalorieTrend(req.user.id, days);
+
+      let avgCalories = 0,
+        avgProtein = 0,
+        avgCarbs = 0,
+        avgFat = 0;
+
+      if (calorieTrend.length > 0) {
+        avgCalories = calorieTrend.reduce((sum, d) => sum + d.calories, 0) / calorieTrend.length;
+        avgProtein = calorieTrend.reduce((sum, d) => sum + d.protein, 0) / calorieTrend.length;
+        avgCarbs = calorieTrend.reduce((sum, d) => sum + d.carbs, 0) / calorieTrend.length;
+        avgFat = calorieTrend.reduce((sum, d) => sum + d.fat, 0) / calorieTrend.length;
+      }
+
+      let weightChange = null;
+      if (weightTrend.length >= 2) {
+        weightChange = weightTrend[weightTrend.length - 1].weight_kg - weightTrend[0].weight_kg;
+      }
+
+      return {
+        user: req.user,
+        weight_trend: weightTrend,
+        calorie_trend: calorieTrend,
+        avg_calories: Math.round(avgCalories),
+        avg_protein: Math.round(avgProtein),
+        avg_carbs: Math.round(avgCarbs),
+        avg_fat: Math.round(avgFat),
+        weight_change: weightChange,
+        days,
+      };
+    } catch (err) {
+      console.error(err);
+      req.flash('error_msg', 'Error loading progress');
+      return {
+        user: req.user,
+        weight_trend: [],
+        calorie_trend: [],
+        avg_calories: 0,
+        avg_protein: 0,
+        avg_carbs: 0,
+        avg_fat: 0,
+        weight_change: null,
+        days: 30,
+      };
+    }
+  }
+}