feat(design): bioluminescent green+violet palette and re-tuned landing hero

chore: frontend design polish (accent palette, remove glow/gradient utils), ignore installed skill trees, add opencode skills config

fix: StructureComparison re-fetches on every render due to audit dep

feat: implement 8 tool bridges (F1-F8) + audit child components

feat: add PNG/TSV/JSON/CSV/FASTA export to all 8 tool components

feat: domains, interactions, primers, structure analysis, wizard, phylo tree, conservation