Add Windmill workflows and Git auto-sync

- Add wmill.yaml configuration with includes for f/**, u/**, g/**
- Add sync_to_git.sh script for automatic Git synchronization
- Add initial workflows synced from Windmill:
  - Test script: u/antigravity/test_git_sync
  - Admin scripts: u/admin/hub_sync
  - Setup app: g/all/setup_app
  - Folders: f/app_custom, f/app_groups, f/app_themes

workflows/wmill.yaml

@@ -0,0 +1,26 @@
+defaultTs: bun
+includes:
+  - f/**
+  - u/**
+  - g/**
+excludes: []
+codebases: []
+skipVariables: false
+skipResources: false
+skipResourceTypes: false
+skipSecrets: true
+skipScripts: false
+skipFlows: false
+skipApps: false
+skipFolders: false
+includeSchedules: false
+includeTriggers: false
+includeUsers: false
+includeGroups: false
+includeSettings: false
+includeKey: false
+skipWorkspaceDependencies: false
+nonDottedPaths: true
+gitBranches:
+  main:
+    overrides: {}