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

server/api/settings/index.get.ts

@@ -0,0 +1,10 @@
+import { prisma } from '~/server/utils/prisma'
+
+export default defineEventHandler(async () => {
+  const settings = await prisma.settings.findMany()
+  const result: Record<string, string> = {}
+  settings.forEach(s => {
+    result[s.key] = s.value
+  })
+  return result
+})