feat(sprint-S4-batch2-4): coverage des vues HTML, adapters VLM, corpus_service, job_runner

feat: Sprint A14-S57 — Wave F clôture audit (issues #15 #16 #21 #23 #24 #25 #26 #30)

feat(adapters/vlm,planner): Sprint A14-S54 architecture cleanup (audit #6 + #14 + #22)

feat(domain): Sprint A14-S52 — hiérarchie d'erreurs unifiée (fix audit #7 + #11)

feat(adapters/vlm): Sprint A14-S45 — 4 VLM adapters natifs (Phase 6 done)