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

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

fix: stabilize ENFSI compliance tool streaming and PDF rendering

fix: render NER table correctly in agent chat

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

feat: inject project context into agent system prompt

feat: agent projects with persistent chats and reusable documents

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

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

feat: compliance PDF export + UI structured report

feat: ENFSI compliance checker + sidebar model selector

fix: RAG chat fully functional in FastAPI backend

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

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: immutable audit log for forensic chain-of-custody

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

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

fix: local dev storage fallback and analysis URL normalization

fix: resolve local dev issues found during first test run

docs: add backend/README.md with local testing guide

feat: add FastAPI backend (Phase 1 — feature/backend)