Phase 0a: SSRF protection + auth on docking/sequencing, worker design doc

Fix structure viewer: correct PDB API URL (+/entry/), fix RCSB UniProt search attribute + payload format

Fix Phase 1 endpoints: resolve UniProt→PDB in structure viewer, use proper Reactome search, surface real backend errors in frontend

Sprint 3-7: Alignment, Structure Viewer, Pathway Analysis, Utility Tools, analyze page fully live