feat: add comprehensive code quality toolkit

Add complete Python code quality analysis tools:
- mypy for static type checking with Django stubs
- radon for code complexity analysis
- vulture for dead code detection
- Update CLAUDE.md with usage examples

All tools configured for Django development with
appropriate exclusions for tests and migrations.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: heysamtexas

CLAUDE.md

@@ -72,6 +72,21 @@ uv run ruff format .
 
 # Run tests
 uv run src/manage.py test
+
+# Security scanning
+uv run bandit -r src/
+
+# Code complexity analysis
+uv run radon cc src/ --show-complexity  # Cyclomatic complexity
+uv run radon mi src/                     # Maintainability index
+uv run radon raw src/                    # Raw metrics (SLOC, comments, etc.)
+
+# Dead code detection
+uv run vulture src/ --min-confidence 80  # Find unused code (high confidence)
+uv run vulture src/ --min-confidence 60  # Find unused code (medium confidence)
+
+# Type checking
+cd src && DJANGO_SETTINGS_MODULE=config.settings uv run mypy organizations/ myapp/ config/ --ignore-missing-imports --disable-error-code=var-annotated
 ```
 
 ## Development Workflow

pyproject.toml

@@ -39,6 +39,10 @@ dev = [
     "pre-commit==4.2.0",
     "commitizen>=3.0.0",
     "bandit==1.8.0",
+    "radon==6.0.1",
+    "vulture==2.14",
+    "mypy==1.11.2",
+    "django-stubs[compatible-mypy]==5.1.0",
 ]
 
 [tool.hatch.build.targets.wheel]
@@ -81,6 +85,20 @@ exclude = [
 exclude = ["src/**/tests/**", "src/**/migrations/*"]
 skips = ["B106"]
 
+[tool.mypy]
+python_version = "3.12"
+plugins = ["mypy_django_plugin.main"]
+exclude = [
+    ".*/migrations/.*",
+    ".*/tests/.*",
+    "manage.py",
+]
+# Suppress some Django-related errors for cleaner output
+disable_error_code = ["import-untyped", "var-annotated"]
+
+[tool.django-stubs]
+django_settings_module = "config.settings"
+
 [tool.commitizen]
 name = "cz_conventional_commits"
 version = "0.1.4"