feat: Add deploy-rs integration with basic configuration

- Add deploy-rs as flake input
- Configure deploy.nodes for all 4 machines (sleeper-service, grey-area, reverse-proxy, congenital-optimist)
- Include safety features: autoRollback, magicRollback, activation timeouts
- Add deploy-rs checks for validation
- Successfully tested dry-run deployment

This completes Tasks 1-3 from the deploy-rs integration roadmap.

.taskmaster/reports/task-complexity-report.json

@@ -0,0 +1,10 @@
+{
+  "meta": {
+    "generatedAt": "2025-06-14T14:52:56.566Z",
+    "tasksAnalyzed": 0,
+    "thresholdScore": 5,
+    "projectName": "Home Lab Infrastructure",
+    "usedResearch": false
+  },
+  "complexityAnalysis": []
+}