fix: resolve CI linting failures

- Fix corrupted docstrings (curly braces to quotes)
- Sort imports according to ruff standards
- Split long line in javascript.py for readability
- Add module-level docstrings to test files
- Add docstring to BaseGenerator.__init__ method
- Fix regex pattern in RustDetector

tests/unit/test_detectors.py

@@ -1,3 +1,6 @@
+#!/usr/bin/env python3
+"""Tests for endpoint detectors."""
+
 import os
 import tempfile
 from pathlib import Path