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-identity-verification-for-zero-trust/references/api-reference.md

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+# API Reference: Implementing Identity Verification for Zero Trust
+
+## CISA Zero Trust Maturity Model - Identity Pillar
+
+| Level | Description | Requirements |
+|-------|-------------|-------------|
+| Traditional | Password-based, static policies | Basic auth |
+| Initial | MFA deployed, basic conditional access | MFA for all users |
+| Advanced | Phishing-resistant MFA, risk-based | FIDO2, risk signals |
+| Optimal | Continuous verification, passwordless | Behavioral analytics |
+
+## Azure AD Conditional Access API
+
+```python
+import requests
+headers = {"Authorization": "Bearer <token>"}
+policies = requests.get(
+    "https://graph.microsoft.com/v1.0/identity/conditionalAccess/policies",
+    headers=headers).json()
+```
+
+## FIDO2/WebAuthn Registration
+
+```javascript
+const credential = await navigator.credentials.create({
+    publicKey: {
+        rp: { name: "Example Corp" },
+        user: { id: userId, name: email, displayName: name },
+        challenge: serverChallenge,
+        pubKeyCredParams: [{ type: "public-key", alg: -7 }],
+        authenticatorSelection: { residentKey: "required" },
+    }
+});
+```
+
+## Conditional Access Signals
+
+| Signal | Source | Zero Trust Level |
+|--------|--------|-----------------|
+| Device compliance | MDM/Intune | Initial |
+| Location/IP | Network context | Initial |
+| User risk | Identity Protection | Advanced |
+| Sign-in risk | Real-time analysis | Advanced |
+| Session behavior | UEBA | Optimal |
+
+## Okta Authentication Policies API
+
+```bash
+curl -X GET "https://DOMAIN.okta.com/api/v1/policies?type=ACCESS_POLICY" \
+  -H "Authorization: SSWS <token>"
+```
+
+### References
+
+- CISA Zero Trust Maturity Model: https://www.cisa.gov/zero-trust-maturity-model
+- NIST SP 800-207: https://csrc.nist.gov/pubs/sp/800/207/final
+- FIDO Alliance: https://fidoalliance.org/fido2/