Complete folder anatomy for all 649 cybersecurity skills + update LICENSE to Mahipal

- Add scripts/agent.py and references/api-reference.md to all remaining skills
- Update all 648 LICENSE files: copyright now reads 'Mahipal'
- Add implementing-security-monitoring-with-datadog (new skill with full anatomy)
- All 649 skills now have: SKILL.md, LICENSE, scripts/agent.py, references/api-reference.md

skills/implementing-endpoint-dlp-controls/references/api-reference.md

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+# API Reference: Implementing Endpoint DLP Controls
+
+## Sensitive Data Patterns
+
+| Pattern | Regex | Severity |
+|---------|-------|----------|
+| SSN | `\d{3}-\d{2}-\d{4}` | HIGH |
+| Credit Card | `4[0-9]{12}(?:[0-9]{3})?` | HIGH |
+| AWS Key | `AKIA[0-9A-Z]{16}` | CRITICAL |
+| Private Key | `-----BEGIN.*PRIVATE KEY-----` | CRITICAL |
+| API Key | `api[_-]?key\s*[:=]\s*[a-zA-Z0-9]{20,}` | HIGH |
+
+## DLP Channels
+
+| Channel | Monitoring Method |
+|---------|-------------------|
+| USB/Removable | Device event logs |
+| Cloud Storage | URL/domain filtering |
+| Email | Attachment scanning |
+| Clipboard | Process monitoring |
+| Print | Print spooler events |
+
+## Microsoft Purview DLP API
+
+```python
+import requests
+headers = {"Authorization": "Bearer <token>"}
+resp = requests.get(
+    "https://graph.microsoft.com/v1.0/security/alerts_v2",
+    headers=headers,
+    params={"$filter": "category eq 'DataLossPrevention'"})
+```
+
+## CrowdStrike Falcon DLP
+
+```bash
+curl -X GET "https://api.crowdstrike.com/dlp/entities/policies/v1" \
+  -H "Authorization: Bearer $TOKEN"
+```
+
+## File Scanning
+
+```python
+from pathlib import Path
+import re
+SENSITIVE_EXTS = {".pem", ".key", ".env", ".kdbx", ".pfx"}
+for f in Path("/data").rglob("*"):
+    if f.suffix in SENSITIVE_EXTS or re.search(r"AKIA", f.read_text()):
+        print(f"ALERT: {f}")
+```
+
+### References
+
+- Microsoft Purview DLP: https://learn.microsoft.com/en-us/purview/dlp-learn-about-dlp
+- CrowdStrike Falcon DLP: https://www.crowdstrike.com/platform/data-protection/