Elixir Agent Kit 0.10.0

• Quality review of all 38 workflows: every numbered step now ends in an
  observable "Done when" (revision-lineage, provider-calls, responsive-layout,
  accessibility, motion-design, test-strategy, async-state and process-lifecycle
  gained theirs), check_library.py flags the obsolete mix xref callers and
  Repo.transaction in workflow bodies, and data-contracts uses Repo.transact/2.
• Trigger and separating-rule fixes: architecture-review names
  functional-refactoring and readable-code and stresses ownership over
  duplication; accessibility carves out one control's keyboard path and
  separates WCAG target size from width and reach; revision-lineage carves out
  stale asynchronous results. Mechanics that drift are pointed at the elixir/
  references instead of restated, and navigation-ux and performance stop and
  ask before a schema change.