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

memory-bank/features/version-control/version-comparison.md

@@ -0,0 +1,47 @@
+# Version Comparison Tool Implementation Plan  
+
+   ## Core Requirements  
+   1. Multi-version timeline visualization  
+   2. Three-way merge preview  
+   3. Change impact analysis  
+   4. Rollback capabilities  
+   5. Performance baseline: <500ms for 100-file diffs  
+
+   ## Technical Integration  
+   - **Diff Algorithm**  
+     Enhance visual-diff-viewer.md component (line 10):  
+     ```typescript  
+     interface ComparisonEngine {  
+         compareVersions(versions: string[]): StructuredDiff[];  
+         calculateImpactScore(diffs: StructuredDiff[]): number;  
+     }  
+     ```  
+
+   - **Model Extensions**  
+     Update VersionTag (line 6):  
+     ```python  
+     class VersionTag(models.Model):  
+         comparison_metadata = models.JSONField(default=dict)  # Stores diff stats  
+     ```  
+
+   - **API Endpoints**  
+     Add to VersionControlViewSet (line 128):  
+     ```python  
+     @action(detail=False, methods=['post'])  
+     def bulk_compare(self, request):  
+         """Process multi-version comparisons"""  
+     ```  
+
+   ## Performance Strategy  
+   | Aspect | Solution | Target |  
+   |--------|----------|--------|  
+   | Diff computation | Background workers | 90% async processing |  
+   | Result caching | Redis cache layer | 5min TTL |  
+   | Large files | Chunked processing | 10MB chunks |  
+   | UI rendering | Virtualized scrolling | 60fps maintain |  
+
+   ## Phase Plan  
+   1. **Week 1**: Core comparison algorithm  
+   2. **Week 2**: Timeline visualization UI  
+   3. **Week 3**: Performance optimization  
+   4. **Week 4**: Rollback safety mechanisms