Bubble.io + Relevance AI RAG Integration Developer

I have a fully built Bubble.io web application that needs a Relevance AI RAG (Retrieval-Augmented Generation) integration completed. The core foundation has been partially built — document upload to knowledge base and basic chat functionality were working at one point. I need an experienced developer to complete and properly implement the full integration. What's Already Built: Complete Bubble.io application with user authentication and role-based routing Multi-tenant database structure (multiple separate accounts each with their own isolated data) Document upload portal Chat interface UI (fully designed and functional — just needs AI connected) Bubble API Connector installed and partially configured Relevance AI account with agents and knowledge bases set up All necessary database fields already created What I Need Completed (4 Tasks): Task 1 — Document Upload Syncing When a user uploads a document in Bubble, it must automatically sync to their specific Relevance AI knowledge set. The Relevance AI document ID returned must be saved back to the corresponding Bubble record. Task 2 — Chat Integration When a user sends a message in the chat interface, it must be routed to their specific Relevance AI agent and return a synchronous response displayed in the chat. Each account must only receive answers from their own isolated knowledge base — cross-account data must never mix. Response must be saved to the database. Task 3 — Document Deletion Syncing When a user deletes a document in Bubble, it must simultaneously be deleted from their Relevance AI knowledge set using the document ID stored in the database. Task 4 — Citation Tracking When the AI responds, it must extract which source document was cited and save that reference back to the database for analytics purposes. Technical Stack: Bubble.io (no-code frontend and backend) Relevance AI (RAG engine) REST API integration via Bubble's API Connector Region and API credentials will be provided upon hiring Important Requirements: Must have demonstrated Bubble.io experience Must understand RAG systems and API integrations Multi-tenant account isolation is non-negotiable — each account's data must be completely separate Please provide examples of similar Bubble.io API integration projects you have completed Project Scope: This is a focused integration project — not a full app build. The application is complete. You are connecting the existing Bubble app to the existing Relevance AI setup and ensuring all four tasks above work correctly and reliably.