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/kguard.json

@@ -0,0 +1,116 @@
+{
+  "brand": "Kguard",
+  "brand_id": "kguard",
+  "last_updated": "2025-10-17",
+  "source": "ispyconnect.com",
+  "entries": [
+    {
+      "models": [
+        "601",
+        "KG-SHA108 w/ Web Port",
+        "Other",
+        "QRC-601",
+        "QRT-10",
+        "QRT-501",
+        "QRT-502"
+      ],
+      "type": "FFMPEG",
+      "protocol": "rtsp",
+      "port": 0,
+      "url": "/11"
+    },
+    {
+      "models": [
+        "BR421"
+      ],
+      "type": "FFMPEG",
+      "protocol": "mms",
+      "port": 555,
+      "url": "/img/video.asf"
+    },
+    {
+      "models": [
+        "ICB-200"
+      ],
+      "type": "FFMPEG",
+      "protocol": "rtsp",
+      "port": 0,
+      "url": "/0"
+    },
+    {
+      "models": [
+        "KG-SHA108 w/ Web Port",
+        "Other"
+      ],
+      "type": "JPEG",
+      "protocol": "http",
+      "port": 0,
+      "url": "stillimg[CHANNEL].jpg"
+    },
+    {
+      "models": [
+        "KG-SHA108 W/ WEB PORT",
+        "Other"
+      ],
+      "type": "JPEG",
+      "protocol": "http",
+      "port": 0,
+      "url": "cgi-bin/video_snapshot.cgi?user=[USERNAME]&pwd=[PASSWORD]"
+    },
+    {
+      "models": [
+        "KG-SHA108 W/ WEB PORT",
+        "Other"
+      ],
+      "type": "MJPEG",
+      "protocol": "http",
+      "port": 0,
+      "url": "cgi-bin/videostream.cgi?user=[USERNAME]&pwd=[PASSWORD]"
+    },
+    {
+      "models": [
+        "Other"
+      ],
+      "type": "JPEG",
+      "protocol": "http",
+      "port": 0,
+      "url": "cgi-bin/net_jpeg.cgi?ch=[CHANNEL]"
+    },
+    {
+      "models": [
+        "Other"
+      ],
+      "type": "JPEG",
+      "protocol": "http",
+      "port": 0,
+      "url": "cgi-bin/wappaint?camera_no=[CHANNEL]&animation=0&name=[USERNAME]&password=[PASSWORD]&pic_size=2"
+    },
+    {
+      "models": [
+        "Other"
+      ],
+      "type": "JPEG",
+      "protocol": "http",
+      "port": 0,
+      "url": "capture[CHANNEL].jpg"
+    },
+    {
+      "models": [
+        "Other"
+      ],
+      "type": "VLC",
+      "protocol": "rtsp",
+      "port": 0,
+      "url": "hiQ.sdp"
+    },
+    {
+      "models": [
+        "Other"
+      ],
+      "type": "VLC",
+      "protocol": "http",
+      "port": 0,
+      "url": "/control/faststream.jpg?stream=MxPEG&needlength&fps=6"
+    }
+  ]
+}