📝 Check off dist-output v1.0 tasks

The emit work (rewriteRelativeImportExtensions, inlineSources, prebuild
clean) resolved the v1.0 dist/ output block, and attw is covered by the
CI publish tier rather than a standalone checklist item.

backlog.tasks

@@ -85,10 +85,9 @@ v1.0:
     ☐ Achieve 100% branch coverage on `src/pattern.ts`
     ☐ Achieve 100% branch coverage on `src/match.ts`
     ☐ Achieve 100% branch coverage on `src/index.ts`
-☐ `dist/` output is clean
-    ☐ Verify `.d.ts` declarations match public exports
-    ☐ Ensure `.js` files use `.js` extensions (not `.ts`)
-    ☐ Test `attw --profile esm-only` passes
+✔ `dist/` output is clean @done
+    ✔ Verify `.d.ts` declarations match public exports @done
+    ✔ Ensure `.js` files use `.js` extensions (not `.ts`) @done
 
 Bugs: