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

src/docgen/detectors/go.py

@@ -1,10 +1,12 @@
+#!/usr/bin/env python3
 """Go endpoint detector for Gin and chi."""
 
 import re
 from pathlib import Path
 from typing import Optional
-from docgen.models import Endpoint, HTTPMethod
+
 from docgen.detectors.base import BaseDetector
+from docgen.models import Endpoint, HTTPMethod
 
 
 class GoDetector(BaseDetector):
@@ -19,7 +21,7 @@ class GoDetector(BaseDetector):
     )
 
     GIN_HANDLE_PATTERN = re.compile(
-        r'(?:routers?|router)\s*\.\s*Handle\s*\("(GET|POST|PUT|PATCH|DELETE|OPTIONS|HEAD)"\s*,\s*"([^"]+)"',
+        r'(?:routers?|router)\s*\.\s*Handle\s*\(\s*"(GET|POST|PUT|PATCH|DELETE|OPTIONS|HEAD)"\s*,\s*"([^"]+)"',
         re.MULTILINE,
     )