feat: Initialize Next.js project with Prisma, Tailwind CSS, and API routes for device management and testing.

.agent/workflows/cli-tester.md

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+---
+description: HDMI Tester CLI Simulator Workflow
+---
+
+This workflow explains how to use the `simulator.py` tool to test the HDMI Head Unit logic without physical hardware.
+
+### Prerequisites
+1. Ensure the Web UI is running:
+   ```bash
+   npm run dev
+   ```
+2. (Optional) Create a virtual environment and install requirements:
+   ```bash
+   pip install requests
+   ```
+
+### 1. Register a New Device
+// turbo
+Run this command to send the initial registration request to the server:
+```bash
+python3 firmware/simulator.py register
+```
+After running this, go to the [Admin Panel](http://localhost:3000/admin) to enroll the device.
+
+### 2. Send a Mock Test Result
+// turbo
+Once the device is enrolled, you can send a mock HDMI test:
+```bash
+python3 firmware/simulator.py test
+```
+
+### 3. Switch Modes & Slots
+// turbo
+Toggle between DEV and PROD modes, or swap A/B slots:
+```bash
+python3 firmware/simulator.py mode-prod
+python3 firmware/simulator.py swap
+```
+
+### 4. Continuous Simulation Loop
+// turbo
+To keep the device alive and reporting periodically:
+```bash
+python3 firmware/simulator.py loop
+```