feat: add admin operations suite

src/app/api/admin/devops/health/route.ts

@@ -0,0 +1,59 @@
+import net from 'node:net'
+import { NextResponse } from 'next/server'
+import { env } from '@/env'
+import { withAdmin } from '@/lib/api-handler'
+import { PERMS } from '@/lib/permissions'
+import { prisma } from '@/lib/prisma'
+
+function checkRcon(): Promise<boolean> {
+  return new Promise((resolve) => {
+    const host = env.RCON_HOST
+    const port = env.RCON_PORT
+
+    const socket = new net.Socket()
+    const timeout = setTimeout(() => {
+      socket.destroy()
+      resolve(false)
+    }, 3000)
+
+    socket.connect(port, host, () => {
+      clearTimeout(timeout)
+      socket.destroy()
+      resolve(true)
+    })
+
+    socket.on('error', () => {
+      clearTimeout(timeout)
+      socket.destroy()
+      resolve(false)
+    })
+  })
+}
+
+export const GET = withAdmin({ permission: PERMS.DEVOPS_VIEW }, async () => {
+  // DB health
+  let dbOk = false
+  let dbLatency = 0
+  try {
+    const start = Date.now()
+    await prisma.$queryRaw`SELECT 1`
+    dbLatency = Date.now() - start
+    dbOk = true
+  } catch {
+    dbOk = false
+  }
+
+  // Emulator health (RCON TCP check)
+  const emulator = await checkRcon()
+
+  // Online users
+  const onlineUsers = await prisma.user.count({ where: { online: '1' } })
+
+  return NextResponse.json({
+    database: dbOk,
+    dbLatency,
+    emulator,
+    onlineUsers,
+    timestamp: new Date().toISOString(),
+  })
+})