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/javascript.py

@@ -1,10 +1,12 @@
+#!/usr/bin/env python3
 """JavaScript endpoint detector for Express and Fastify."""
 
 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 JavaScriptDetector(BaseDetector):
@@ -59,7 +61,12 @@ class JavaScriptDetector(BaseDetector):
 
     def _detect_framework(self, content: str) -> Optional[str]:
         """Auto-detect the JavaScript framework."""
-        if "from '@fastify/" in content or "from 'fastify'" in content or "import fastify" in content:
+        fastify_patterns = [
+            "from '@fastify/",
+            "from 'fastify'",
+            "import fastify",
+        ]
+        if any(p in content for p in fastify_patterns):
             return "fastify"
         if 'require("fastify")' in content or "require('fastify')" in content:
             return "fastify"