🔧 chore(ci): automate superpowers sync workflow

run the thirdparty superpowers snapshot updater on a daily schedule.

trigger sync-superpowers automatically when thirdparty/skill is updated and cover the new automation with workflow tests.

.gitea/workflows/sync-superpowers.yml

@@ -1,6 +1,9 @@
 name: Sync Superpowers Skills
 
 on:
+  push:
+    branches:
+      - thirdparty/skill
   workflow_dispatch:
 
 concurrency:

.gitea/workflows/update-thirdparty-superpowers.yml

@@ -5,6 +5,8 @@ on:
     branches:
       - main
   workflow_dispatch:
+  schedule:
+    - cron: "@daily"
 
 concurrency:
   group: thirdparty-superpowers-update-${{ github.repository }}