~x-ai/grok-latest → B (2:3)

B replaces redirect-based auth success/error with HTML fragments and extends the shared poem form handler to morph non-empty responses, a lasting flow design that unifies auth with the main layout and keeps existing empty-body forms working. A is solid garden UX (edge vote counts, HUD unpin via set_garden_pin clear, tests/CSS), but it is scoped feature polish rather than a core interaction-pattern fix.