Refactor ChatGPT entity architecture for improved maintainability

[konard]

🎯 Issue Reference

Fixes #149

📝 Summary

This PR implements a comprehensive refactoring of the ChatGPT entity architecture to improve maintainability, reduce code duplication, and enhance separation of concerns.

🔧 Changes Made

✨ New Services Created

• DialogRestoreService: Handles complex dialog restoration logic extracted from ChatGptTemplate
• DialogRouterService: Manages routing of dialog restoration based on dialog type
• ChatStateManager: Centralizes chat state initialization and management

🏗️ Refactored Components

• ChatGptTemplate.ts: Removed complex restoreDialogFromHistory method (TODO at line 358), now delegates to DialogRestoreService
• ChatGpt.ts: Simplified all chat movement methods by using service classes instead of duplicated logic
• index.ts: Added exports for new services

🚀 Key Improvements

• ✅ Reduced complexity: Eliminated complex conditional chains in dialog routing
• ✅ Better separation of concerns: Each service has a single responsibility
• ✅ Reduced duplication: Common initialization patterns centralized in ChatStateManager
• ✅ Improved maintainability: Easier to modify, test, and extend individual components
• ✅ Resolved TODO: Addressed the refactoring TODO comment in ChatGptTemplate.ts

📊 Impact

• 6 files changed: 237 additions, 87 deletions
• 3 new service files created for better architecture
• Maintained API compatibility: No breaking changes to public interfaces
• Enhanced extensibility: Easy to add new chat types or modify existing behavior

🧪 Testing

• All existing functionality preserved through service delegation
• Refactored code maintains the same public API
• Services designed with testability in mind for future unit testing

🔮 Future Benefits

• Easier to add new chat types (just extend DialogRouterService)
• Individual services can be unit tested in isolation
• Simplified debugging and maintenance
• Better code organization for team collaboration

🤖 Generated with Claude Code