One-shot prettier pass so the new format:check gate starts from a clean
baseline. Formatting only — no behaviour change. Generator-owned and
vendored artifacts stay untouched via .prettierignore.
The 400 ms `.animate-insight-in` entrance keyframe is applied across five
insight surfaces and is collapsed to `animation: none` once, centrally, in
a `@media (prefers-reduced-motion: reduce)` block in globals.css. Extend
the motion-reduce coverage test to assert that central guard so a future
edit cannot silently drop it and replay the entrance motion for
motion-sensitive users.
Marc-André Bombeck