Add [CHANNEL+1] placeholder support for Hikvision-style channel numbering

- Added [CHANNEL+1], [channel+1], {CHANNEL+1}, {channel+1} placeholders to builder.go
- Updated 14 camera brands with universal channel patterns
- Hikvision: replaced 10 hardcoded patterns with 6 universal patterns
- Hiwatch: replaced 4 hardcoded patterns with 8 universal patterns (including ISAPI)
- Other brands: Annke, Swann, Abus, 7links, LevelOne, AlienDVR, Oswoo, AV102IP-40, Acvil, TBKVision, Deltaco, Night Owl
- Universal patterns placed first for faster discovery, hardcoded patterns kept as fallback
- Supports both 0-based (channel=0 -> 101) and 1-based (channel=1 -> 101) numbering
- Added 6 high-priority patterns to popular_stream_patterns.json

data/brands/night-owl.json

@@ -4,6 +4,24 @@
   "last_updated": "2025-10-17",
   "source": "ispyconnect.com",
   "entries": [
+    {
+      "models": [
+        "ALL"
+      ],
+      "type": "FFMPEG",
+      "protocol": "rtsp",
+      "port": 554,
+      "url": "/Streaming/Channels/[CHANNEL+1]01"
+    },
+    {
+      "models": [
+        "ALL"
+      ],
+      "type": "FFMPEG",
+      "protocol": "rtsp",
+      "port": 554,
+      "url": "/Streaming/Channels/[CHANNEL]01"
+    },
     {
       "models": [
         "0v600-365-kd",
@@ -153,24 +171,6 @@
       "port": 0,
       "url": "snapshot.jpg?account=[USERNAME]&password=[PASSWORD]"
     },
-    {
-      "models": [
-        "BTD2",
-        "CAM2",
-        "DVR-FTD4-8",
-        "DVR-THD30B",
-        "FTD4",
-        "Other",
-        "WM-CAM-WAWNP2L",
-        "wmvr-wnip2",
-        "WNIP2-CM",
-        "WNIP-2lta-bs"
-      ],
-      "type": "FFMPEG",
-      "protocol": "rtsp",
-      "port": 554,
-      "url": "/Streaming/channels/301"
-    },
     {
       "models": [
         "CAM-1",
@@ -375,6 +375,24 @@
       "protocol": "http",
       "port": 80,
       "url": "/cgi-bin/snapshot.cgi?chn=0&u=[USERNAME]&p=[PASSWORD]"
+    },
+    {
+      "models": [
+        "BTD2",
+        "CAM2",
+        "DVR-FTD4-8",
+        "DVR-THD30B",
+        "FTD4",
+        "Other",
+        "WM-CAM-WAWNP2L",
+        "wmvr-wnip2",
+        "WNIP2-CM",
+        "WNIP-2lta-bs"
+      ],
+      "type": "FFMPEG",
+      "protocol": "rtsp",
+      "port": 554,
+      "url": "/Streaming/channels/301"
     }
   ]
 }