Add C# bridges and coordinator service

- geviscope-bridge: GeViScope SDK REST wrapper (:7720)
- gcore-bridge: G-Core SDK REST wrapper (:7721)
- geviserver-bridge: GeViServer REST wrapper (:7710)
- copilot-coordinator: WebSocket coordination hub (:8090)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

copilot-coordinator/appsettings.json

@@ -0,0 +1,30 @@
+{
+  "Port": 8090,
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*",
+  "LockExpiration": {
+    "Timeout": "00:05:00",
+    "WarningBefore": "00:01:00"
+  },
+  "Bridges": [
+    {
+      "Name": "GeViScope",
+      "Url": "http://localhost:7720",
+      "CameraRangeStart": 500000,
+      "CameraRangeEnd": 500999
+    },
+    {
+      "Name": "GCore",
+      "Url": "http://localhost:7721",
+      "CameraRangeStart": 501000,
+      "CameraRangeEnd": 501999
+    }
+  ],
+  "Sequences": [],
+  "SequenceCategories": []
+}