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/reverse-engineering-malware-with-ghidra/SKILL.md

@@ -1,17 +1,26 @@
 ---
 name: reverse-engineering-malware-with-ghidra
-description: >
-  Reverse engineers malware binaries using NSA's Ghidra disassembler and decompiler to
-  understand internal logic, cryptographic routines, C2 protocols, and evasion techniques
-  at the assembly and pseudo-C level. Activates for requests involving malware reverse
-  engineering, disassembly analysis, decompilation, binary analysis, or understanding
-  malware internals.
+description: 'Reverse engineers malware binaries using NSA''s Ghidra disassembler and decompiler to understand internal logic,
+  cryptographic routines, C2 protocols, and evasion techniques at the assembly and pseudo-C level. Activates for requests
+  involving malware reverse engineering, disassembly analysis, decompilation, binary analysis, or understanding malware internals.
+
+  '
 domain: cybersecurity
 subdomain: malware-analysis
-tags: [malware, reverse-engineering, Ghidra, disassembly, decompilation]
+tags:
+- malware
+- reverse-engineering
+- Ghidra
+- disassembly
+- decompilation
 version: 1.0.0
 author: mahipal
 license: Apache-2.0
+nist_csf:
+- DE.AE-02
+- RS.AN-03
+- ID.RA-01
+- DE.CM-01
 ---
 
 # Reverse Engineering Malware with Ghidra