Add Strix camera discovery system with comprehensive database

This commit adds the complete Strix IP camera stream discovery system:
- Go-based API server with SSE support for real-time updates
- 3,600+ camera brand database with stream URL patterns
- Intelligent fuzzy search across camera models
- ONVIF discovery and stream validation
- RESTful API with health check, camera search, and stream discovery
- Makefile for building and deployment
- Comprehensive README documentation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

data/brands/empire.json

@@ -0,0 +1,55 @@
+{
+  "brand": "Empire",
+  "brand_id": "empire",
+  "last_updated": "2025-10-17",
+  "source": "ispyconnect.com",
+  "entries": [
+    {
+      "models": [
+        "1.0MP",
+        "EPC1",
+        "ESC1",
+        "esc-4",
+        "ESC-IPC",
+        "esc-ipc-1 v2",
+        "IPC-1",
+        "IPC-1 V1.0",
+        "IPC-5 2.0",
+        "IPC5-mini 2.0"
+      ],
+      "type": "FFMPEG",
+      "protocol": "rtsp",
+      "port": 0,
+      "url": "/user=[USERNAME]_password=[PASSWORD]_channel=1_stream=0.sdp"
+    },
+    {
+      "models": [
+        "ESC 4",
+        "ESC3-IP(1.3)",
+        "IPC-1"
+      ],
+      "type": "FFMPEG",
+      "protocol": "rtsp",
+      "port": 0,
+      "url": "/user=[USERNAME]&password=[PASSWORD]&channel=1&stream=1.sdp?real_stream--rtp-caching=100"
+    },
+    {
+      "models": [
+        "IPC-Color4K-T-2.8mm"
+      ],
+      "type": "FFMPEG",
+      "protocol": "rtsp",
+      "port": 554,
+      "url": "/cam/realmonitor?channel=1&subtype=2"
+    },
+    {
+      "models": [
+        "IPC-Color4K-T-2.8mm"
+      ],
+      "type": "FFMPEG",
+      "protocol": "rtsp",
+      "port": 554,
+      "url": "/cam/realmonitor?channel=1&subtype=0"
+    }
+  ]
+}