Add OWASP compliance mapping and security test case templates, and document version control implementation phases

memory-bank/security/audit-checklist.md

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+# Version Control Security Audit Checklist  
+
+   ## Core Security Domains  
+   1. **Authentication**  
+      - [ ] MFA required for lock overrides (Branch Locking.md Line 58)  
+      - [ ] Session invalidation on permission changes  
+
+   2. **Authorization**  
+      - [ ] Role hierarchy enforcement (Approval Workflow.md Line 22)  
+      - [ ] Context-sensitive permission checks  
+
+   3. **Data Protection**  
+      - [ ] Encryption of comparison metadata (Version Comparison.md Line 6)  
+      - [ ] Audit log integrity verification  
+
+   4. **Workflow Security**  
+      - [ ] State machine tamper detection (Approval Workflow.md Line 45)  
+      - [ ] Comment edit history immutability  
+
+   ## Threat Mitigation Table  
+   | Threat Type | Affected Feature | Mitigation Strategy |  
+   |-------------|------------------|---------------------|  
+   | Race Conditions | Branch Locking | Optimistic locking with version stamps |  
+   | XSS | Change Comments | DOMPurify integration (Line 89) |  
+   | Data Leakage | Version Comparison | Strict field-level encryption |  
+   | Repudiation | Approval Workflow | Blockchain-style audit trail |  
+
+   ## Testing Procedures  
+   1. **Penetration Tests**  
+      - Lock bypass attempts via API fuzzing  
+      - Approval state injection attacks  
+
+   2. **Static Analysis**  
+      - OWASP ZAP scan configuration  
+      - SonarQube security rule activation  
+
+   3. **Runtime Monitoring**  
+      - Unauthorized diff access alerts  
+      - Abnormal approval pattern detection  
+
+   ## Phase Integration  
+   | Development Phase | Security Focus |  
+   |--------------------|----------------|  
+   | Locking Implementation | Permission model validation |  
+   | Workflow Development | State transition auditing |  
+   | Comment System | Content sanitization checks |  
+   | Comparison Tool | Data anonymization tests |  
+
+   ## Severity Levels  
+   - **Critical**: Direct system access vulnerabilities  
+   - **High**: Data integrity risks  
+   - **Medium**: UX security weaknesses  
+   - **Low**: Informational exposure

memory-bank/security/owasp-mapping.md

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+# OWASP Top 10 Compliance Mapping  
+
+   | OWASP Item | Our Implementation | Verification Method |  
+   |------------|--------------------|---------------------|  
+   | A01:2021-Broken Access Control | Branch Locking permissions (Line 58) | Penetration testing |  
+   | A03:2021-Injection | Comment sanitization (Line 89) | Static code analysis |  
+   | A05:2021-Security Misconfiguration | Version Tag defaults (Line 6) | Configuration audits |  
+   | A08:2021-Software/Data Integrity Failures | Audit logging (Checklist 3.4) | Checksum verification |  
+
+   ## Critical Compliance Gaps  
+   1. Cryptographic failures (Data at rest encryption) - Scheduled for Phase 3  
+   2. Server-side request forgery - Requires API gateway hardening

memory-bank/security/test-cases.md

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+# Security Test Case Template
+
+## Authentication Tests
+```gherkin
+Scenario: Lock override with expired session
+  Given an active branch lock
+  When session expires during override attempt
+  Then system should reject with 401 Unauthorized
+  And log security event "LOCK_OVERRIDE_FAILURE"
+```
+
+## Injection Prevention
+```gherkin
+Scenario: XSS in change comments
+  When submitting comment with <script>alert(1)</script>
+  Then response should sanitize to "&amp;lt;script&amp;gt;alert(1)&amp;lt;/script&amp;gt;"
+  And store original input in quarantine
+```
+
+## Data Integrity
+```gherkin
+Scenario: Unauthorized diff modification
+  Given approved version comparison
+  When altering historical diff metadata
+  Then checksum validation should fail
+  And trigger auto-rollback procedure
+```
+
+## Workflow Security
+```gherkin
+Scenario: Approval state bypass
+  Given pending approval workflow
+  When attempting direct state transition
+  Then enforce state machine rules
+  And log "ILLEGAL_STATE_CHANGE" event
+```
+
+## Monitoring Tests
+```gherkin
+Scenario: Abnormal approval patterns
+  Given 10 rapid approvals from same IP
+  When monitoring system detects anomaly
+  Then freeze approval process
+  And notify security team