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-stix-taxii-feed-integration/references/api-reference.md

@@ -0,0 +1,28 @@
+# API Reference: STIX/TAXII feed integration audit
+
+## API Details
+taxii2client.Server(), Collection.get_objects(), stix2.parse(), indicator extraction
+
+## Installation
+```bash
+pip install stix2 taxii2client
+```
+
+## Libraries
+
+| Library | Use |
+|---------|-----|
+| `stix2` | stix2 client/SDK |
+| `taxii2client` | taxii2client client/SDK |
+
+## Authentication
+
+| Method | Header |
+|--------|--------|
+| Bearer Token | `Authorization: Bearer <token>` |
+| API Key | `X-API-Key: <key>` |
+
+## Output Format
+```json
+{"timestamp": "ISO-8601", "findings": [], "risk_level": "HIGH"}
+```