Iteration Log: 2026-07-27-1525 (Device Labeling Page on Localhost)

Request & Scope

Request: Implement the "Device Labeling" management tab locally first (localhost). This tab allows administrators to manage and label captured MAC addresses.
Scope: Express Backend endpoints, Sidebar navigation, Next.js page component, local MongoDB query logic, and compiler validation.
Deployment Policy: STRICTLY LOCAL ONLY (fokus localhost; no deploy to production).

Backend Route Design:
- Modified backend/routes/dashboard/devices.js to add GET /api/dashboard/devices/labeling.
- Programmed role-based security (SUPER_ADMIN / TENANT_ADMIN) and tenant data isolation filtering by site_uuid.
- Programmed aggregation grouping on DeviceStat with a automatic fallback to the raw Flow collection if device statistics are empty.
- Integrated lookup joins with CustomDeviceLabel to return custom labels.
Sidebar Registration:
- Registered Device Labeling with the Tag icon in src/components/layout/SidebarData.ts.
- Hidden the menu item for non-admin roles in src/components/layout/Sidebar.tsx.
Page Component Creation:
- Created Next.js client component page src/app/(dashboard)/device-labeling/page.tsx with a responsive DataTable, modal forms, and updates submitting to /api/dashboard/devices/update-label.
Verification:
- Verified database queries using a local scratch script: verify-local-labeling.js successfully executed and resolved 85 records from the local MongoDB database.
- Compiled Next.js locally using npm run build: built cleanly with no TypeScript compiler errors.
- Checked health status of local backend server at http://127.0.0.1:3001/api/health and verified it is active.

Local Codebase State: Completely implemented and functional on localhost.
Production State: Untouched (demoplace domain is unchanged).
Open Risks / Issues: The browser subagent encountered an environment Playwright download issue (Azure CDN returned 404 for driver installation), which prevented automated browser screenshot testing.