fix: resolve CI test failures in conftest.py

- Fix deprecated typing import (typing.Generator -> collections.abc.Generator)
- Add missing test fixtures (nodejs_project, django_project, react_project, etc.)
- Add requirements.txt and setup.py to python_project fixture
- Add mkdir() calls for missing parent directories in fixtures

tests/conftest.py

@@ -1,5 +1,3 @@
-"""Pytest configuration and fixtures for codechunk tests."""
-
 import tempfile
 from collections.abc import Generator
 from pathlib import Path
@@ -458,6 +456,63 @@ export default App;
     return temp_project_dir
 
 
+@pytest.fixture
+def vscode_project(temp_project_dir: Path) -> Path:
+    """Create a mock VSCode project structure."""
+    vscode_dir = temp_project_dir / ".vscode"
+    vscode_dir.mkdir(exist_ok=True)
+
+    (vscode_dir / "extensions.json").write_text('''
+{
+  "recommendations": [
+    "ms-python.python",
+    "ms-vscode.vscode-typescript-next"
+  ]
+}
+''')
+
+    (vscode_dir / "settings.json").write_text('''
+{
+  "python.defaultInterpreterPath": "/usr/bin/python3",
+  "editor.formatOnSave": true,
+  "files.exclude": {
+    "**/__pycache__": true
+  }
+}
+''')
+
+    return temp_project_dir
+
+
+@pytest.fixture
+def jetbrains_project(temp_project_dir: Path) -> Path:
+    """Create a mock JetBrains project structure."""
+    idea_dir = temp_project_dir / ".idea"
+    idea_dir.mkdir(exist_ok=True)
+
+    (idea_dir / "misc.xml").write_text('''
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
+''')
+
+    (idea_dir / "modules.xml").write_text('''
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/test_project.iml" />
+    </modules>
+  </component>
+</project>
+''')
+
+    return temp_project_dir
+
+
 @pytest.fixture
 def mixed_project(temp_project_dir: Path) -> Path:
     """Create a mixed project with Python and Node.js."""