new: added some server

server/README.md

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+# mice Download Server
+
+Simple Node.js server to host mice 3DS homebrew files for easy download via QR code.
+
+## Quick Start
+
+1. **Install dependencies:**
+   ```bash
+   cd server
+   npm install
+   ```
+
+2. **Build mice first:****
+   ```bash
+   cd ..
+   make
+   ```
+
+3. **Start the server:**
+   ```bash
+   cd server
+   npm start
+   ```
+
+4. **Access the download page:**
+   - Open browser to `http://localhost:3000`
+   - Use QR codes to download on 3DS browser
+   - Or find your local IP and access from any device on the network
+
+## Features
+
+- 📱 QR codes for easy 3DS browser access
+- 📦 Automatic detection of build files (.3dsx, .cia, .3ds, .elf)
+- 🎮 Installation instructions included
+- 📊 File size information
+- 🌐 Network accessible from any device
+
+## Usage on 3DS
+
+1. Connect your 3DS to the same WiFi network as your computer
+2. Open the Internet Browser on your 3DS
+3. Scan the QR code or manually enter the URL
+4. Download the .3dsx or .cia file
+5. Install according to the instructions on the page
+
+## Development
+
+```bash
+npm run dev  # Uses nodemon for auto-restart
+```
+
+## File Types
+
+- **.3dsx** - Homebrew Launcher format (copy to `/3ds/` folder)
+- **.cia** - Installable format (use FBI or similar installer)
+- **.3ds** - 3DS ROM format
+- **.elf** - Debug/development format