chore: bump version to 1.5.0

Update version from 1.4.1 to 1.5.0 reflecting significant enhancements:

Minor version increment (1.4.1 → 1.5.0) includes:
- ✅ Comprehensive Generic Task Model documentation (100KB+ content)
- ✅ Enhanced Claude Code integration with context-specific guidance
- ✅ Critical infrastructure roadmap and feature specifications
- ✅ MaintenanceCoordinator bugfix preventing runtime crashes
- ✅ Complete diagnostic and maintenance tool suite
- ✅ Repository organization with proper archival system
- ✅ Enhanced test infrastructure and validation tools

Release classification: Minor Feature Release
- Primary focus: Documentation infrastructure and developer experience
- Secondary benefits: Critical bugfix and system reliability improvements
- Future enablement: Foundation for Generic Task Model v2.0

Migration requirements: NONE (zero breaking changes)
Upgrade path: Direct upgrade from 1.4.1 with no user action required

🏷️ Release v1.5.0 - Documentation Infrastructure & Developer Experience Enhancement

Author: EchoingVesper

setup.py

@@ -16,7 +16,7 @@
 
 setup(
     name="mcp-task-orchestrator",
-    version="1.4.1",
+    version="1.5.0",
     author="Echoing Vesper",
     author_email="example@example.com",
     description="A Model Context Protocol server for task orchestration",