fix: use Gradio 5 messages format in agent chatbot

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

fix: shorten HF Spaces short_description to <=60 chars

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

feat: add in-app Guide page with 8 sections (IT/EN)

feat: move language toggle into Settings dialog

feat: ChatGPT-style sidebar footer with Settings dialog

feat: per-user OpenAI key + model preferences persisted in DB

feat: add OpenAI API support (gpt-5.4 family) alongside Ollama

fix: reduce compliance variability with temperature=0 and larger context

fix: bypass LLM tool-call for compliance requests to ensure reliability

fix: stabilize ENFSI compliance tool streaming and PDF rendering

feat: add Conformità ENFSI as agent tool with inline report and PDF download

fix: render NER table correctly in agent chat

fix: agent session isolation, audit rollback, persistent images, legacy endpoint

fix: isolate agent temp files per session + fix PaddlePaddle PIR on Windows

fix: sidebar UX — move Projects under Agent, remove duplicate + in New chat

feat: inject project context into agent system prompt

feat: agent projects with persistent chats and reusable documents

fix: dropdown menu opaque background and auto-positioning

feat: add ChatGPT-style '+' actions menu with multi-prompt selection

fix: replace hardcoded strings with i18n keys

feat: show extracted signature image inline in agent chat

feat: delete single analysis artefact in Perizie page

feat: separate LLM and VLM model slots + fix agent OCR model routing

docs: document Agente Documentale and OCR model selector in README

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

feat: compliance PDF export + UI structured report

feat: ENFSI compliance checker + sidebar model selector

docs: add Compliance Checker ENFSI and Grafometrics to roadmap

docs: update ROADMAP with current completion status

fix: RAG chat fully functional in FastAPI backend

fix: rag_doc_list() call signature and frontend Docker npm install

feat: persist language preference in localStorage

docs: add password reset and DB reset procedures to backend README

feat: password reset via admin (no SMTP required)

docs: update all YOLOv8 references to Conditional DETR

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

feat: immutable audit log for forensic chain-of-custody

feat: PDF report with images, formatted tables and clean layout

feat: include Step 7 LLM synthesis in final pipeline report

fix: keep first document selected after subsequent uploads

feat: optional reference signature for full forensic pipeline

feat: pipeline images, markdown rendering and running spinner

feat: show annotated images in analysis cards with markdown rendering

feat: add Clear analyses button to project detail page

Merge feature/frontend into main — Phase 1 MVP complete

chore: gitignore local dev artifacts and add utils.ts

feat: signature verification UI and analysis route fixes

fix: local dev storage fallback and analysis URL normalization