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

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