chore: add documentation comment in i18n extractor

.github/workflows/self-host-images.yml

@@ -4,7 +4,7 @@
 # `cargo x workflows`: it is not part of Macro's own deploy pipeline and does
 # not touch AWS or Pulumi.
 #
-# The service image builds the focused Email production aggregate used by the
+# The service image builds the focused Email production aggregate consumed by the
 # VPS deployment. It intentionally avoids the full local development stack.
 name: Self-host images
 

packages/i18n/extract.ts

@@ -1,3 +1,4 @@
+// i18n translation extractor and AST quality gate analysis
 import fs from "node:fs";
 import path from "node:path";
 import { parse } from "@babel/parser";