cli-15: Enhance Session Management

[szmania]

Summary

This PR enhances session management in Cecli by improving the saving and loading of agent configurations, MCP states, tools, skills, and hooks. The changes ensure that sessions are properly serialized and deserialized, including handling edge cases like None skill lists and WindowsPath objects.

Changes

• feat: Save and load MCP, tool, and skill states in sessions (5554c45)
• fix: Correctly retrieve and manage enabled hooks during session save/load (9213b2f)
• refactor: Save and load agent tools configuration in session (999c121)
• fix: Convert skill lists to serializable format for session saving (25294e8)
• fix: Handle None skill lists when saving sessions (a3ac3b5)
• refactor: Update session to save skills paths and lists (59789b5)
• fix: Convert WindowsPath to string for JSON serialization (a435f07)
• fix: Rename agent_config to tools in session data (6e4f9eb)
• test: Add tests for session save/load agent config (d7b6d3b)
• chore: Fixed formatting (390fb25)
• chore: Merge in changes (274d654)

Key Improvements

1. Session Serialization: Ensures all session data (MCP states, tools, skills, hooks) is properly serialized and deserialized.
2. Edge Case Handling: Addresses edge cases like None skill lists and WindowsPath objects to prevent serialization errors.
3. Testing: Adds tests to validate the session save/load functionality for agent configurations.

Impact

• Reliability: Sessions are now more reliable and can be restored without errors.
• Maintainability: Code is more maintainable with proper serialization and edge case handling.
• Test Coverage: Improved test coverage for session management.