Refactor logging implementation and enhance SDLC state management

Refactor ChatbotWithToolNode to remove date awareness and streamline prompt processing

Merge branch 'main' of https://github.com/Icamtu/Agentic-AI-End-to-End

Enhance ChatbotWithToolNode with date awareness and tool integration; update GraphBuilder to improve node connections and conditional edges

Enhance blog and chatbot nodes with consistent content formatting and improved display handling

Enhance Groq model management by adding dynamic fetching and updating of models based on API key input

Update .gitignore, requirements, and improve error handling in LLM classes and search tools

Refactor chatbot nodes to improve message handling and integrate tool responses

search tool Added