feat: establish NekoNest Cloud control and relay

app/api/internal/relay/revoke-phone/route.ts

@@ -0,0 +1,24 @@
+import {
+  authenticateRelayNode,
+  revokePhoneForRelay,
+} from "@/db/relay-control-plane";
+import { apiError, readJsonMutation } from "../../../respond";
+
+export async function POST(request: Request) {
+  try {
+    const principal = await authenticateRelayNode(request);
+    const payload = await readJsonMutation<{
+      tenant_id?: string;
+      phone_id?: string;
+      reason?: string;
+    }>(request);
+    return Response.json(await revokePhoneForRelay({
+      principal,
+      tenantId: payload.tenant_id ?? "",
+      phoneId: payload.phone_id ?? "",
+      reason: payload.reason ?? "",
+    }), { headers: { "cache-control": "no-store" } });
+  } catch (error) {
+    return apiError(error);
+  }
+}