feat: implement QuestionBank CRUD with pagination and template query

- Add pagination support to findAll (page, limit query params)
- Add findByTemplateId method to service
- Add GET /by-template/:templateId endpoint to controller
- Service already includes CRUD for QuestionBank and QuestionBankItem

web/vite.config.ts

@@ -0,0 +1,39 @@
+import path from 'path';
+import { defineConfig, loadEnv } from 'vite';
+import react from '@vitejs/plugin-react';
+import tailwindcss from '@tailwindcss/vite';
+
+export default defineConfig(({ mode }) => {
+  const env = loadEnv(mode, '.', '');
+  return {
+    server: {
+      port: Number(env.VITE_PORT) || 13001,
+      host: env.VITE_HOST || '0.0.0.0',
+      proxy: {
+        '/api': {
+          target: env.VITE_BACKEND_URL || 'http://localhost:3001',
+          changeOrigin: true,
+        },
+        '/uploads': {
+          target: env.VITE_BACKEND_URL || 'http://localhost:3001',
+          changeOrigin: true,
+        },
+      },
+    },
+    plugins: [tailwindcss() as any, react()],
+    define: {
+      'process.env.API_KEY': JSON.stringify(env.GEMINI_API_KEY),
+      'process.env.GEMINI_API_KEY': JSON.stringify(env.GEMINI_API_KEY)
+    },
+    optimizeDeps: {
+      exclude: ['tailwindcss']
+    },
+    resolve: {
+      alias: {
+        '@': path.resolve(__dirname, '.'),
+      }
+    },
+    publicDir: 'public'
+  };
+});
+// touch