feat(branding): Synteny rebrand — new identity, signal-coded palette, and pipeline icons

feat(export): add downloads to ADMET, MD, pairwise, AlphaFold, docking, pathway, plus 4 new learn topics

fix(function-predict): add BP term, real AA composition, JSON export, UniProt distinction, and /learn topic

feat(frontend): roll design-system classes across all dashboard pages + fix sidebar toggle alignment

fix: remove opacity:0 flicker from all pages

feat: molecular docking (AutoDock Vina) + docs site + Sentry + cache stats + Phase 2 docs update