Add privacy route to journal route config

Route was missing from the explicit routes.ts, so typegen didn't
generate types for it.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/journal/app/routes.ts

@@ -19,4 +19,5 @@ export default [
   route("activities/new", "routes/activities.new.tsx"),
   route("activities/:id", "routes/activities.$id.tsx"),
   route("users/:username", "routes/users.$username.tsx"),
+  route("privacy", "routes/privacy.tsx"),
 ] satisfies RouteConfig;