Connect Ecaz Betrayal and Fremen worm Cunning with build revision

lib/build-revision.ts

@@ -0,0 +1,9 @@
+declare const __BUILD_REVISION__: string;
+
+/** The Git commit baked into this build, or 'unavailable' without a checkout/SHA. */
+export const buildRevision = typeof __BUILD_REVISION__ === 'string'
+  ? __BUILD_REVISION__
+  : 'unavailable';
+export const buildRevisionLabel = buildRevision === 'unavailable'
+  ? 'unavailable'
+  : buildRevision.slice(0, 7);