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
+})

server/api/settings/save.post.ts

@@ -0,0 +1,21 @@
+import { prisma } from '~/server/utils/prisma'
+
+export default defineEventHandler(async (event) => {
+  const body = await readBody(event)
+  
+  if (body.key === 'targetCommunities' && Array.isArray(body.value)) {
+    await prisma.settings.upsert({
+      where: { key: body.key },
+      create: { key: body.key, value: JSON.stringify(body.value) },
+      update: { value: JSON.stringify(body.value) }
+    })
+  } else {
+    await prisma.settings.upsert({
+      where: { key: body.key },
+      create: { key: body.key, value: body.value },
+      update: { value: body.value }
+    })
+  }
+  
+  return { success: true }
+})