Add main application logic for Reminder App and memory agent functionality

Remove sessions.db from tracking and update .gitignore

Enhance session management and reminder functionality

Add initial implementation of persistent session management and memory agent

Add dotenv dependency and implement example session for travel planning

Add pydantic dependency and implement weather forecast agent

Add litellm_example agent implementation

Add initial implementation of hello_world_agent and search_agent packages

Add initial implementation of search_agent with web search capabilities

Add initial implementation of hello_world_agent with date functionality and .gitignore file

Initialize project structure with Python 3.13, add main application file, and set up dependencies in pyproject.toml and uv.lock. Create README.md and .python-version files.