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README.md

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----
-title: CedroPM Bot
-emoji: 🤖
-colorFrom: blue
-colorTo: indigo
-sdk: docker
-pinned: false
-app_port: 7860
----
-
-# PM-RAG-ChatBot
-
-A powerful RAG (Retrieval Augmented Generation) chatbot for querying Software Requirements Documents (SRDs) and project documentation. Built with Chainlit, Claude AI, and advanced document processing capabilities.
-
-## 🚀 Features
-
-- **📄 SRD Document Processing**: Upload and index PDF documents with intelligent section-aware text splitting
-- **🎨 Diagram Understanding**: Process diagrams using Claude Vision and/or Qwen2-VL vision models
-- **💬 Interactive Chat Interface**: Web-based chat interface powered by Chainlit
-- **🔍 Hybrid Search**: Combines dense vector search (semantic) and sparse search (BM25) with cross-encoder reranking
-- **📚 Multi-Project Support**: Manage multiple projects with isolated knowledge bases
-- **💾 Persistent Chat History**: SQLite database stores all conversations and messages
-- **🧠 Learning from Feedback**: Optional learning mode that improves responses based on user corrections
-- **🔐 User Isolation**: Multi-user support with strict data isolation per user, project, and chat
-- **⚡ Smart Intent Detection**: Automatically detects enumeration queries vs. regular Q&A
-- **📊 Table Extraction**: Extracts and indexes tables from PDF documents
-
-## 🏗️ Architecture
-
-The system uses a hybrid RAG architecture:
-
-1. **Document Ingestion**: PDFs are processed with section-aware splitting, preserving functional/non-functional requirement context
-2. **Vector Storage**: ChromaDB stores embeddings with metadata for filtering and scoping
-3. **Hybrid Retrieval**: 
-   - Dense retrieval using sentence transformers (all-MiniLM-L6-v2)
-   - Sparse retrieval using BM25
-   - Cross-encoder reranking (ms-marco-MiniLM-L-6-v2)
-4. **Answer Generation**: Claude Sonnet 4.5 generates context-aware answers
-5. **Vision Processing**: Optional diagram interpretation using Claude Vision or OCR
-
-## 📋 Prerequisites
-
-- **Python 3.8+**
-- **System Dependencies**:
-  - **Poppler** (for PDF to image conversion)
-    - Windows: Download from [poppler-windows releases](https://github.com/oschwartz10612/poppler-windows/releases/)
-    - Add `bin` folder to PATH or set `POPPLER_PATH` environment variable
-  - **Tesseract OCR** (optional, for OCR fallback)
-    - Windows: Download from [UB-Mannheim Tesseract](https://github.com/UB-Mannheim/tesseract/wiki)
-- **Anthropic API Key**: Get one from [Anthropic Console](https://console.anthropic.com/)
-
-## 🔧 Installation
-
-### 1. Clone the Repository
-
-```bash
-git clone <repository-url>
-cd PM-RAG-ChatBot