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/extracting-credentials-from-memory-dump/SKILL.md

@@ -1,13 +1,29 @@
 ---
 name: extracting-credentials-from-memory-dump
-description: Extract cached credentials, password hashes, Kerberos tickets, and authentication tokens from memory dumps using Volatility and Mimikatz for forensic investigation.
+description: Extract cached credentials, password hashes, Kerberos tickets, and authentication tokens from memory dumps using
+  Volatility and Mimikatz for forensic investigation.
 domain: cybersecurity
 subdomain: digital-forensics
-tags: [forensics, credential-extraction, memory-forensics, volatility, mimikatz, password-hashes, incident-response]
-mitre_attack: ["T1003", "T1558", "T1552"]
-version: "1.0"
+tags:
+- forensics
+- credential-extraction
+- memory-forensics
+- volatility
+- mimikatz
+- password-hashes
+- incident-response
+mitre_attack:
+- T1003
+- T1558
+- T1552
+version: '1.0'
 author: mahipal
 license: Apache-2.0
+nist_csf:
+- RS.AN-01
+- RS.AN-03
+- DE.AE-02
+- RS.MA-01
 ---
 
 # Extracting Credentials from Memory Dump