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-sqlite-database-forensics/SKILL.md

@@ -1,12 +1,28 @@
 ---
 name: performing-sqlite-database-forensics
-description: Perform forensic analysis of SQLite databases to recover deleted records from freelists and WAL files, decode encoded timestamps, and extract evidence from browser history, messaging apps, and mobile device databases.
+description: Perform forensic analysis of SQLite databases to recover deleted records from freelists and WAL files, decode
+  encoded timestamps, and extract evidence from browser history, messaging apps, and mobile device databases.
 domain: cybersecurity
 subdomain: digital-forensics
-tags: [sqlite, database-forensics, freelist, wal, write-ahead-log, browser-history, mobile-forensics, deleted-records, b-tree, unallocated-space]
-version: "1.0"
+tags:
+- sqlite
+- database-forensics
+- freelist
+- wal
+- write-ahead-log
+- browser-history
+- mobile-forensics
+- deleted-records
+- b-tree
+- unallocated-space
+version: '1.0'
 author: mahipal
 license: Apache-2.0
+nist_csf:
+- RS.AN-01
+- RS.AN-03
+- DE.AE-02
+- RS.MA-01
 ---
 
 # Performing SQLite Database Forensics