Refactor UnifiedCoordinator to follow Single Responsibility Principle

- Create dedicated service classes for separated concerns:
  * AgentService: Agent management and health monitoring
  * WorkflowService: Workflow parsing and execution tracking
  * PerformanceService: Metrics and load balancing
  * BackgroundService: Background processes and cleanup
  * TaskService: Database persistence (already existed)

- Refactor UnifiedCoordinator into UnifiedCoordinatorRefactored
  * Clean separation of responsibilities
  * Improved maintainability and testability
  * Dependency injection pattern for services
  * Clear service boundaries and interfaces

- Maintain backward compatibility through re-exports
- Update main.py to use refactored coordinator

🚀 Generated with [Claude Code](https://claude.ai/code)

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

frontend/node_modules/lucide-react/dist/esm/icons/mailbox.js

@@ -1,5 +1,5 @@
 /**
- * @license lucide-react v0.294.0 - ISC
+ * @license lucide-react v0.453.0 - ISC
  *
  * This source code is licensed under the ISC license.
  * See the LICENSE file in the root directory of this source tree.
@@ -16,7 +16,7 @@ const Mailbox = createLucideIcon("Mailbox", [
     }
   ],
   ["polyline", { points: "15,9 18,9 18,11", key: "1pm9c0" }],
-  ["path", { d: "M6.5 5C9 5 11 7 11 9.5V17a2 2 0 0 1-2 2v0", key: "n6nfvi" }],
+  ["path", { d: "M6.5 5C9 5 11 7 11 9.5V17a2 2 0 0 1-2 2", key: "15i455" }],
   ["line", { x1: "6", x2: "7", y1: "10", y2: "10", key: "1e2scm" }]
 ]);