fix: use Gradio 5 messages format in agent chatbot

fix: render agent extracted images in Gradio via base64 data URIs

feat: enable RAG and Agent on HF Spaces via OpenAI API key

feat: Agente Documentale LangChain + OCR selector + stop + SQLite WAL

feat: replace ultralytics/YOLOv8 with Conditional DETR (Apache 2.0)

feat: extract AI logic into shared core/ package (Phase 0)

Show unavailability banner in RAG tab when Ollama is not reachable

Improve PDF report: Unicode fixes, NER table, layout, tab rename

Add PDF report generation to Forensic Pipeline

Add Step 7: LLM synthesis to Forensic Pipeline via Ollama

Fix model selector: separate generation model from embedding model

Add Ollama model selector to Consulente Forense IA tab

Speed up RAG indexing with batch embedding via Ollama /api/embed

Fix Gradio 6.x chatbot: normalize content field (str or list of parts)

Fix Chatbot for Gradio 6.x: use messages format (role/content dicts)

Fix Chatbot format: add type="tuples" for Gradio 5.x compatibility

Fix Chatbot init: remove show_copy_button (not supported in installed Gradio)

Transform Consulente Forense IA into multi-turn streaming chatbot

Add persistent RAG cache, document list UI, and improved retrieval

Add document upload to RAG tab (rag_add_docs + Accordion UI)

Add RAG knowledge base tab (Consulente Forense IA) with Ollama/Llama3.2

Show CPU warning in title only on HF Spaces (SPACE_ID env var)

Add open-set rejection to writer identification (unknown writer detection)

Fix grapho_analyse: adaptive threshold + 800px cap to eliminate dark-background artifact

Improve forensic pipeline: generator streaming, grapho contrast fix, writer pre-warm

Fix: remove unsupported description param from TabbedInterface

Add Hugging Face Spaces configuration

Fix estrazione date in tab Datazione Documenti

aggiunta datazione

Update grapholab_demo.py

Switch HTR engine from TrOCR to EasyOCR for Italian support

HTR done with trocr-large-handwritten

Improve writer identification: TTF fonts + real sample database

Add plain-language descriptions and result guides for non-expert audience

Improve signature verification tab: multi-reference + visual output

Add Writer Identification tab and presentation generator

Translate user interface text to Italian for handwritten text recognition and signature verification features

Update grapholab_demo.py

Add Named Entity Recognition feature and update HTR functionality

signet.pth

Update grapholab_demo.py

Update grapholab_demo.py

Tuning

Grapholab first commit