fix(api): Next.js 16 route handler types — params is Promise in context

- Update GET signature to (req: NextRequest, ctx: { params: Promise<{id:string}> })
- Await ctx.params and pass id to Convex client
- Keeps NextResponse return type

src/app/api/admin/machines/[id]/details/route.ts

@@ -1,15 +1,16 @@
-import { NextResponse } from "next/server"
+import { NextRequest, NextResponse } from "next/server"
 import type { Id } from "@/convex/_generated/dataModel"
 import { api } from "@/convex/_generated/api"
 import { createConvexClient, ConvexConfigurationError } from "@/server/convex-client"
 
 export const dynamic = "force-dynamic"
 
-export async function GET(_req: Request, { params }: { params: { id: string } }) {
+export async function GET(_req: NextRequest, ctx: { params: Promise<{ id: string }> }) {
   try {
     const client = createConvexClient()
-    const id = params.id as Id<"machines">
-    const data = (await client.query(api.machines.getById, { id, includeMetadata: true })) as unknown
+    const { id } = await ctx.params
+    const machineId = id as Id<"machines">
+    const data = (await client.query(api.machines.getById, { id: machineId, includeMetadata: true })) as unknown
     if (!data) return NextResponse.json({ error: "Not found" }, { status: 404 })
     return NextResponse.json(data, { status: 200 })
   } catch (err) {
@@ -20,4 +21,3 @@ export async function GET(_req: Request, { params }: { params: { id: string } })
     return NextResponse.json({ error: "Internal error" }, { status: 500 })
   }
 }
-