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/file-key.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.
@@ -8,10 +8,7 @@
 import createLucideIcon from '../createLucideIcon.js';
 
 const FileKey = createLucideIcon("FileKey", [
-  [
-    "path",
-    { d: "M14.5 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V7.5L14.5 2z", key: "1nnpy2" }
-  ],
+  ["path", { d: "M15 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V7Z", key: "1rqfz7" }],
   ["circle", { cx: "10", cy: "16", r: "2", key: "4ckbqe" }],
   ["path", { d: "m16 10-4.5 4.5", key: "7p3ebg" }],
   ["path", { d: "m15 11 1 1", key: "1bsyx3" }]