Tanuj's Request-Reviewer As Built — The Module Federation Proof

The smallest of the four sources, and architecturally the most important. Vite + React 19 + Module Federation. The only place Tanuj actually got cross-app code sharing to work — a federated `RecordCard` component imported from `@module-federation-vite/ui`. The augmentation logic, however, is duplicated from record-collector by copy-paste, which exposes the seam that the federation experiment didn't resolve.