feat: initial commit with Nuxt 3 student management system

- Add Nuxt 3 + Prisma + SQLite full-stack setup
- Add student CRUD API with batch import/export
- Add stats dashboard with gender/class distribution
- Add target community settings feature
- Add Docker deployment support (Dockerfile + docker-compose)
- Add README with development and deployment instructions

assets/css/main.css

@@ -0,0 +1,30 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+@layer base {
+  body {
+    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
+  }
+}
+
+@layer components {
+  .btn {
+    @apply px-4 py-2 rounded-lg font-medium transition;
+  }
+  .btn-primary {
+    @apply bg-blue-600 text-white hover:bg-blue-700;
+  }
+  .btn-danger {
+    @apply bg-red-600 text-white hover:bg-red-700;
+  }
+  .btn-success {
+    @apply bg-green-600 text-white hover:bg-green-700;
+  }
+  .card {
+    @apply bg-white rounded-lg shadow p-6;
+  }
+  .input {
+    @apply px-4 py-2 border rounded-lg focus:ring-2 focus:ring-blue-500 focus:border-blue-500 outline-none;
+  }
+}