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/hangzhou.json

@@ -0,0 +1,25 @@
+{
+  "brand": "Hangzhou",
+  "brand_id": "hangzhou",
+  "last_updated": "2025-10-17",
+  "source": "ispyconnect.com",
+  "entries": [
+    {
+      "models": [
+        "1337",
+        "A8L",
+        "HNC312-MB",
+        "KuoHeng",
+        "Other",
+        "PTZIP212X20-C",
+        "RX8020-PQL",
+        "SC-303-XD",
+        "WHC17452"
+      ],
+      "type": "FFMPEG",
+      "protocol": "rtsp",
+      "port": 5544,
+      "url": "/11"
+    }
+  ]
+}