feat: add NIST CSF 2.0 nist_csf field to all 754 cybersecurity skills

Mapped every skill to NIST CSF 2.0 subcategory IDs (GV/ID/PR/DE/RS/RC functions)
based on subdomain and content analysis. Restores 11 skills corrupted during
prior rebase, re-enriching with ATLAS, D3FEND, NIST AI RMF, and CSF 2.0 fields.

All 754 skills now carry structured mappings for all 5 security frameworks:
- MITRE ATT&CK (in tags)
- MITRE ATLAS v5.5 (atlas_techniques)
- MITRE D3FEND v1.3 (d3fend_techniques)
- NIST AI RMF 1.0 (nist_ai_rmf)
- NIST CSF 2.0 (nist_csf)

skills/implementing-aqua-security-for-container-scanning/SKILL.md

@@ -1,12 +1,25 @@
 ---
 name: implementing-aqua-security-for-container-scanning
-description: Deploy Aqua Security's Trivy scanner to detect vulnerabilities, misconfigurations, secrets, and license issues in container images across CI/CD pipelines and registries.
+description: Deploy Aqua Security's Trivy scanner to detect vulnerabilities, misconfigurations, secrets, and license issues
+  in container images across CI/CD pipelines and registries.
 domain: cybersecurity
 subdomain: devsecops
-tags: [aqua-security, trivy, container-scanning, vulnerability-scanning, sbom, image-security, supply-chain]
-version: "1.0"
+tags:
+- aqua-security
+- trivy
+- container-scanning
+- vulnerability-scanning
+- sbom
+- image-security
+- supply-chain
+version: '1.0'
 author: mahipal
 license: Apache-2.0
+nist_csf:
+- PR.PS-01
+- GV.SC-07
+- ID.IM-04
+- PR.PS-04
 ---
 
 # Implementing Aqua Security for Container Scanning