Update URLs from code.flowmade.one to git.flowmade.one

Migrate all action files to use the new Gitea server URL.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docker-push/action.yaml

@@ -10,7 +10,7 @@ inputs:
     default: 'latest'
   registry:
     description: Registry URL
-    default: 'code.flowmade.one'
+    default: 'git.flowmade.one'
   username:
     description: Registry username
     default: ${{ github.repository_owner }}