Projektarten: neue Repos erkennen und Zuordnungs-Mail senden

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

test/helpers/fakeGitea.js

@@ -137,6 +137,7 @@ export async function startFakeGitea(options = {}) {
       private: Boolean(def.private),
       description: def.description || '',
       empty: false,
+      created_at: def.created_at || new Date().toISOString(),
     }
     repos.set(keyFrom(fullName), record)
     return record