Initial commit: Sentry-Emote system monitor

- Aggregator: Flask-based event broker with priority queue
- Frontend: OLED-optimized UI with animations
- Detectors: disk, cpu, memory, service, network
- Unified entry point (sentry.py) with process management
- Heartbeat TTL system for auto-clearing stale events

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

config.json

@@ -0,0 +1,57 @@
+{
+	"aggregator_url": "http://localhost:5000",
+	"aggregator": {
+		"script": "aggregator.py"
+	},
+	"detectors": [
+		{
+			"name": "disk_space",
+			"enabled": true,
+			"script": "detectors/disk_space.py",
+			"env": {
+				"CHECK_INTERVAL": "300",
+				"THRESHOLD_WARNING": "85",
+				"THRESHOLD_CRITICAL": "95"
+			}
+		},
+		{
+			"name": "cpu",
+			"enabled": true,
+			"script": "detectors/cpu.py",
+			"env": {
+				"CHECK_INTERVAL": "30",
+				"THRESHOLD_WARNING": "85",
+				"THRESHOLD_CRITICAL": "95"
+			}
+		},
+		{
+			"name": "memory",
+			"enabled": true,
+			"script": "detectors/memory.py",
+			"env": {
+				"CHECK_INTERVAL": "30",
+				"THRESHOLD_WARNING": "85",
+				"THRESHOLD_CRITICAL": "95"
+			}
+		},
+		{
+			"name": "service",
+			"enabled": false,
+			"script": "detectors/service.py",
+			"env": {
+				"CHECK_INTERVAL": "30",
+				"SERVICES": "nginx,postgres"
+			}
+		},
+		{
+			"name": "network",
+			"enabled": false,
+			"script": "detectors/network.py",
+			"env": {
+				"CHECK_INTERVAL": "60",
+				"HOSTS": "8.8.8.8,google.com",
+				"TIMEOUT": "5"
+			}
+		}
+	]
+}