🎓 Initial commit: Math2 Platform - Plataforma de Álgebra Lineal PRO

✨ Características:
- 45 ejercicios universitarios (Basic → Advanced)
- Renderizado LaTeX profesional
- IA generativa (Z.ai/DashScope)
- Docker 9 servicios
- Tests 123/123 pasando
- Seguridad enterprise (JWT, XSS, Rate limiting)

🐳 Infraestructura:
- Next.js 14 + Node.js 20
- PostgreSQL 15 + Redis 7
- Docker Compose completo
- Nginx + SSL ready

📚 Documentación:
- 5 informes técnicos completos
- README profesional
- Scripts de deployment automatizados

Estado: Producción lista ✅

backend/vitest.config.ts

@@ -0,0 +1,47 @@
+import { defineConfig } from 'vitest/config';
+import path from 'path';
+
+export default defineConfig({
+  test: {
+    globals: true,
+    environment: 'node',
+    include: ['tests/**/*.test.ts'],
+    exclude: [
+      'node_modules',
+      'dist',
+      'tests/e2e/**/*',
+    ],
+    coverage: {
+      provider: 'v8',
+      reporter: ['text', 'json', 'html', 'lcov'],
+      include: ['src/modules/**/*.ts', 'src/shared/**/*.ts'],
+      exclude: [
+        'src/modules/**/index.ts',
+        'src/modules/**/dtos/*.ts',
+        'src/modules/**/*.routes.ts',
+        'src/modules/**/*.controller.ts',
+        'src/shared/database/*.ts',
+        'src/shared/middleware/*.ts',
+        'src/shared/types/*.ts',
+        'src/config/*.ts',
+      ],
+      thresholds: {
+        lines: 80,
+        functions: 80,
+        branches: 75,
+        statements: 80,
+      },
+    },
+    setupFiles: ['tests/setup.ts'],
+    testTimeout: 10000,
+    hookTimeout: 10000,
+  },
+  resolve: {
+    alias: {
+      '@': path.resolve(__dirname, './src'),
+      '@modules': path.resolve(__dirname, './src/modules'),
+      '@shared': path.resolve(__dirname, './src/shared'),
+      '@config': path.resolve(__dirname, './src/config'),
+    },
+  },
+});