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: follow-up question feature + fix duplicate export button

fix: SSL patch for PubMed, install deps, extract-table working

feat: update UI with ARIA cyan theme and animated hex logo

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

feat: session history, predictive model, signature, rate limit fixes