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/main.ts

@@ -0,0 +1,60 @@
+import { NestFactory } from '@nestjs/core';
+import { NestExpressApplication } from '@nestjs/platform-express';
+import { AppModule } from './app.module';
+import * as session from 'express-session';
+import * as passport from 'passport';
+import * as flash from 'express-flash';
+import * as expressLayouts from 'express-ejs-layouts';
+import * as methodOverride from 'method-override';
+import * as path from 'path';
+
+// eslint-disable-next-line @typescript-eslint/no-var-requires
+const SQLiteStore = require('connect-sqlite3')(session);
+
+async function bootstrap() {
+  const app = await NestFactory.create<NestExpressApplication>(AppModule);
+
+  // Static assets
+  app.useStaticAssets(path.join(__dirname, '..', 'public'));
+  
+  // Views
+  app.setBaseViewsDir(path.join(__dirname, '..', 'views'));
+  app.setViewEngine('ejs');
+  
+  // Layouts
+  app.use(expressLayouts);
+  app.set('layout', 'layout');
+  
+  // Method override
+  app.use(methodOverride('_method'));
+  
+  // Body parsing (built-in in NestJS, but ensuring extended urlencoded)
+  app.useBodyParser('urlencoded', { extended: true });
+
+  // Session
+  app.use(
+    session({
+      store: new SQLiteStore({ db: 'sessions.db', dir: './data' }),
+      secret: process.env.SECRET_KEY || 'secret',
+      resave: false,
+      saveUninitialized: false,
+      cookie: { maxAge: 30 * 24 * 60 * 60 * 1000 }, // 30 days
+    }),
+  );
+
+  // Passport
+  app.use(passport.initialize());
+  app.use(passport.session());
+
+  // Flash
+  app.use(flash());
+
+  // Global variables (helper functions)
+  const expressApp = app.getHttpAdapter().getInstance();
+  expressApp.locals.round = Math.round;
+
+  const PORT = process.env.PORT || 3000;
+  await app.listen(PORT);
+  console.log(`Application is running on: ${await app.getUrl()}`);
+}
+bootstrap();