fix: NGS fallback to Python aligner when native tools missing; add missing re import in sequence_utils

fix(blast): honor program/db/max_hits params, accept DNA queries, poll cap 65 min

fix: PDB IDs like 1TIM rejected as NCBI accessions causing 400 error

fix: UniProt mapping resilience - skip gracefully instead of failing pipeline

fix: rewrite map_refseq_to_uniprot to use two-step ID mapping API

fix: BLAST pipeline crash — accession misclassification + missing error handling

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

fix: Analyze button on retrieve page + sessionStorage handoff to blast wizard

fix: FASTA header text bleeding into sequence validation, add IUPAC codes U O B Z X J

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