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/students/[id].put.ts

@@ -0,0 +1,23 @@
+import { prisma } from '~/server/utils/prisma'
+
+export default defineEventHandler(async (event) => {
+  const id = Number(event.context.params?.id)
+  const body = await readBody(event)
+  
+  const student = await prisma.student.update({
+    where: { id },
+    data: {
+      className: body.className,
+      name: body.name,
+      gender: body.gender,
+      birthday: body.birthday || null,
+      address: body.address || null,
+      fatherName: body.fatherName || null,
+      fatherPhone: body.fatherPhone || null,
+      motherName: body.motherName || null,
+      motherPhone: body.motherPhone || null
+    }
+  })
+  
+  return student
+})