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/performing-soap-web-service-security-testing/SKILL.md

@@ -1,12 +1,27 @@
 ---
 name: performing-soap-web-service-security-testing
-description: Perform security testing of SOAP web services by analyzing WSDL definitions and testing for XML injection, XXE, WS-Security bypass, and SOAPAction spoofing.
+description: Perform security testing of SOAP web services by analyzing WSDL definitions and testing for XML injection, XXE,
+  WS-Security bypass, and SOAPAction spoofing.
 domain: cybersecurity
 subdomain: api-security
-tags: [soap, web-services, wsdl, xml-injection, xxe, ws-security, penetration-testing, soapaction-spoofing, xpath-injection]
-version: "1.0"
+tags:
+- soap
+- web-services
+- wsdl
+- xml-injection
+- xxe
+- ws-security
+- penetration-testing
+- soapaction-spoofing
+- xpath-injection
+version: '1.0'
 author: mahipal
 license: Apache-2.0
+nist_csf:
+- PR.PS-01
+- ID.RA-01
+- PR.DS-10
+- DE.CM-01
 ---
 
 # Performing SOAP Web Service Security Testing