feat: add Europe PMC source + update STATUS.md

feat: migrate inference to Qwen2.5-72B on AMD MI300X via vLLM

feat: PRISMA filter, query suggestions, table author fix, follow-up Q&A

feat: PRISMA filter, follow-up questions, rate limit retry, staggered post-pipeline calls

feat: session history, comparison table, predictive model, signature

feat: added prediction model

feat: selective literature review with paper checkboxes

feat: evidence confidence scoring with green/yellow/red badges

feat: working pipeline, PDF export, progress bar, structured UI

feat: multi-agent ARIA pipeline with Groq

feat: Flask web UI + README

fix: switch from tinyllama to llama3.2 for tool support

feat: PubMed retrieval + LangChain ReAct agent scaffold