Initial commit: COPILOT D6 Flutter keyboard controller

Flutter web app replacing legacy WPF CCTV surveillance keyboard controller.
Includes wall overview, section view with monitor grid, camera input,
PTZ control, alarm/lock/sequence BLoCs, and legacy-matching UI styling.

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

config/crossswitch-rules.json.template

@@ -0,0 +1,68 @@
+{
+  "$schema": "./crossswitch-rules.schema.json",
+  "version": "1.0",
+  "description": "CrossSwitch rules for logical camera/monitor mapping",
+
+  "rules": [
+    {
+      "id": "rule-001",
+      "name": "Direct Camera to Monitor",
+      "description": "Default rule - map camera directly to monitor on same server",
+      "enabled": true,
+      "priority": 100,
+      "conditions": {
+        "cameraRange": [1, 200],
+        "monitorRange": [1, 32]
+      },
+      "action": {
+        "type": "viewerConnectLive",
+        "routing": "auto"
+      }
+    },
+    {
+      "id": "rule-002",
+      "name": "Alarm Monitor Override",
+      "description": "Prevent switching on monitors with active alarms",
+      "enabled": true,
+      "priority": 10,
+      "conditions": {
+        "monitorHasAlarm": true,
+        "alarmStates": ["vasNewAlarm", "vasPresented"]
+      },
+      "action": {
+        "type": "deny",
+        "reason": "Monitor has active alarm"
+      }
+    },
+    {
+      "id": "rule-003",
+      "name": "Cross-Server Camera to Monitor",
+      "description": "Allow camera from one server to display on monitor of another",
+      "enabled": true,
+      "priority": 50,
+      "conditions": {
+        "crossServer": true
+      },
+      "action": {
+        "type": "viewerConnectLive",
+        "routing": "monitorServer",
+        "note": "Command goes to monitor's server, not camera's server"
+      }
+    }
+  ],
+
+  "defaults": {
+    "playMode": "live",
+    "switchTimeout": 5000,
+    "verifySwitch": true,
+    "verifyTimeout": 500
+  },
+
+  "alarmMonitorReservation": {
+    "enabled": true,
+    "description": "When alarm fires, reserve monitor and switch to alarm camera",
+    "reservationStates": ["vasNewAlarm", "vasPresented"],
+    "autoRelease": false,
+    "releaseOnConfirm": true
+  }
+}