fix Add Quality Assurance & Security Audit Report for Nightly Workflow Implementation

- Created a comprehensive QA report detailing the audit of three GitHub Actions workflows: propagate-changes.yml, nightly-build.yml, and supply-chain-verify.yml.
- Included sections on pre-commit hooks, YAML syntax validation, security audit findings, logic review, best practices compliance, and specific workflow analysis.
- Highlighted strengths, minor improvements, and recommendations for enhancing security and operational efficiency.
- Documented compliance with SLSA Level 2 and OWASP security best practices.
- Generated report date: 2026-01-13, with a next review scheduled after Phase 3 implementation or 90 days from deployment.

.vscode/tasks.json

@@ -201,6 +201,18 @@
             "group": "test",
             "problemMatcher": []
         },
+        {
+            "label": "Security: Scan Docker Image (Local)",
+            "type": "shell",
+            "command": ".github/skills/scripts/skill-runner.sh security-scan-docker-image",
+            "group": "test",
+            "problemMatcher": [],
+            "presentation": {
+                "reveal": "always",
+                "panel": "dedicated",
+                "close": false
+            }
+        },
         {
             "label": "Security: CodeQL Go Scan (DEPRECATED)",
             "type": "shell",