Implement PDF summary generation tool: add a new tool for generating project-aware PDF summaries from conversations, enhancing the summarization capabilities of the agent. Update retrieval tools for improved metadata handling and streamline the agent's tool integration. Refactor PDF generation logic to handle link sanitization and improve error handling during PDF creation.

Enhance PDF generation and update configurations: Add PDF_LOGO_PATH to .env.example, include markdown-pdf in requirements.txt, and refactor PDF generation logic to support logo integration. Introduce tests for PDF generation from Markdown input and update summarizer agent to streamline export functionality.

Enhance conversation workflows by introducing summarization and classification agents. Implement retrieval nodes for document fetching, and update settings for Supabase integration. Add Markdown to PDF conversion utilities and improve agent service to handle document metadata. Refactor agent registry to support orchestrated workflows.