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/deploying-decoy-files-for-ransomware-detection/SKILL.md

@@ -1,18 +1,28 @@
 ---
 name: deploying-decoy-files-for-ransomware-detection
-description: >
-  Deploys canary files (honeytokens) across file systems to detect ransomware
-  encryption activity in real time. Uses strategically placed decoy documents
-  monitored via file integrity monitoring or OS-level watchdogs to trigger
-  alerts when ransomware modifies or encrypts them. Activates for requests
-  involving ransomware canary deployment, honeyfile setup, deception-based
-  ransomware detection, or file integrity monitoring for encryption.
+description: 'Deploys canary files (honeytokens) across file systems to detect ransomware encryption activity in real time.
+  Uses strategically placed decoy documents monitored via file integrity monitoring or OS-level watchdogs to trigger alerts
+  when ransomware modifies or encrypts them. Activates for requests involving ransomware canary deployment, honeyfile setup,
+  deception-based ransomware detection, or file integrity monitoring for encryption.
+
+  '
 domain: cybersecurity
 subdomain: ransomware-defense
-tags: [ransomware, detection, canary-files, honeytokens, deception, file-integrity]
+tags:
+- ransomware
+- detection
+- canary-files
+- honeytokens
+- deception
+- file-integrity
 version: 1.0.0
 author: mahipal
 license: Apache-2.0
+nist_csf:
+- PR.DS-11
+- RS.MA-01
+- RC.RP-01
+- PR.IR-01
 ---
 
 # Deploying Decoy Files for Ransomware Detection