- Created CODE_QUALITY_CHECKLIST.md with comprehensive guide
- Added audit_code_patterns.sh for automated code scanning
- Created common/request_utils.py with safe_int(), safe_bool(), etc.
- Fixed unsafe request.data access in notifications/api/views.py
- Updated ldap_password_mixin.py docstring with safe example
Audit found and documented:
- 10 unsafe request.data['key'] accesses
- 8+ unsafe int() conversions without try/except
- Multiple .strip() calls without None checks
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