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-stack.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.
@@ -8,12 +8,12 @@
 import createLucideIcon from '../createLucideIcon.js';
 
 const FileStack = createLucideIcon("FileStack", [
-  ["path", { d: "M16 2v5h5", key: "kt2in0" }],
+  ["path", { d: "M21 7h-3a2 2 0 0 1-2-2V2", key: "9rb54x" }],
   [
     "path",
     {
-      d: "M21 6v6.5c0 .8-.7 1.5-1.5 1.5h-7c-.8 0-1.5-.7-1.5-1.5v-9c0-.8.7-1.5 1.5-1.5H17l4 4z",
-      key: "1km23n"
+      d: "M21 6v6.5c0 .8-.7 1.5-1.5 1.5h-7c-.8 0-1.5-.7-1.5-1.5v-9c0-.8.7-1.5 1.5-1.5H17Z",
+      key: "1059l0"
     }
   ],
   ["path", { d: "M7 8v8.8c0 .3.2.6.4.8.2.2.5.4.8.4H15", key: "16874u" }],