fix: use subprocess.run(timeout=...) instead of asyncio subprocess for reliable Vina timeout

feat: add query coverage, organism, and query accession to BLAST results

Security, crash fixes, demo prep, dead code removal

Add RefSeq->UniProt mapping step in pipeline + demo uniprot_accession

fix: E-value underflow, AlphaFold step, steps_completed append, UniProt always runs

Deploy prep: Render config + Dockerfile, refactored backend auth flow, dashboard, landing page, error states, guest flow