chore(userbot): apply ruff check --fix and ruff format

- ruff check --fix: 210 auto-fixed errors (import sorting, trailing
  whitespace, unused imports, f-string fixups, deprecated annotations)
- ruff format: 104 files reformatted to consistent style
- 268 non-auto-fixable issues remain (S113 requests timeout, etc.)

.unused/app.py

@@ -3,10 +3,10 @@ from flask import Flask
 app = Flask(__name__)
 
 
-@app.route("/")
+@app.route('/')
 def hello_world():
-    return "This is Moon"
+    return 'This is Moon'
 
 
-if __name__ == "__main__":
+if __name__ == '__main__':
     app.run()