feat: show PDB structures, GO terms, and expanded features in UniProt panel

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

Add Reactome diagrams, KEGG search, pathway enrichment (pipeline + standalone)

Security, crash fixes, demo prep, dead code removal

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

Core pipeline testability: progress callback, rate limiter 429, history table

Initial commit: Bio Nexus pipeline engine — BLAST + UniProt + AlphaFold + AI interpretation (Phase 1)