REFACTOR(repo): simplify project structure

- Move services/nextjs to nextjs/
- Move deploy/docker/Dockerfile.prod to Dockerfile
- Add GitHub Actions workflows (ci.yml, build.yml)
- Remove deploy/, services/, scripts/ folders

nextjs/app/api/auth/me/route.ts

@@ -0,0 +1,54 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { verifyToken } from '@/shared/lib/auth'
+import { db } from '@/shared/lib/db'
+
+export async function GET(req: NextRequest) {
+  try {
+    // Get token from cookie
+    const token = req.cookies.get('auth-token')?.value
+
+    if (!token) {
+      return NextResponse.json(
+        { error: 'Unauthorized' },
+        { status: 401 }
+      )
+    }
+
+    // Verify token
+    const payload = verifyToken(token)
+    
+    if (!payload) {
+      return NextResponse.json(
+        { error: 'Invalid token' },
+        { status: 401 }
+      )
+    }
+
+    // Get user from database
+    const user = await db.user.findUnique({
+      where: { id: payload.userId },
+      select: {
+        id: true,
+        email: true,
+        name: true,
+        image: true,
+      },
+    })
+
+    if (!user) {
+      return NextResponse.json(
+        { error: 'User not found' },
+        { status: 404 }
+      )
+    }
+
+    return NextResponse.json(user)
+  } catch (error) {
+    console.error('Get user error:', error)
+    return NextResponse.json(
+      { error: 'Internal server error' },
+      { status: 500 }
+    )
+  }
+}
+