6-phase vertical-slice plan for full 1:1 replication of the Zibll
widget system into AKSRT. Covers pagination fatal fix, card-stacking
CSS fix, unified renderer, shared common-form layer adoption, and
per-category widget alignment (posts/users/slider/marketing/forum/shop)
plus resource migration and registration/block-editor parity.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
