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/.package-lock.json

@@ -1922,12 +1922,6 @@
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@@ -4131,12 +4125,12 @@
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       "license": "ISC",
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+        "react": "^16.5.1 || ^17.0.0 || ^18.0.0 || ^19.0.0-rc"
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     "node_modules/math-intrinsics": {
@@ -4739,47 +4733,6 @@
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-      "deprecated": "react-flow-renderer has been renamed to reactflow, please use this package from now on https://reactflow.dev/docs/guides/migrate-to-v11/",
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-        "classcat": "^5.0.3",
-        "d3-drag": "^3.0.0",
-        "d3-selection": "^3.0.0",
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-        "zustand": "^3.7.2"
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-      "engines": {
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-      "license": "MIT",
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