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/building-incident-timeline-with-timesketch/references/api-reference.md

@@ -0,0 +1,80 @@
+# API Reference: Incident Timeline Building with Timesketch
+
+## Authentication
+```
+POST /login/
+Content-Type: application/x-www-form-urlencoded
+Body: username=USER&password=PASS
+```
+
+## Sketch Endpoints
+| Method | Endpoint | Description |
+|--------|----------|-------------|
+| GET | `/api/v1/sketches/` | List all sketches |
+| POST | `/api/v1/sketches/` | Create new sketch |
+| GET | `/api/v1/sketches/{id}/` | Get sketch details |
+| DELETE | `/api/v1/sketches/{id}/` | Delete sketch |
+
+## Timeline Upload
+```
+POST /api/v1/upload/
+Content-Type: multipart/form-data
+Fields: name, sketch_id, file (Plaso/CSV/JSONL)
+```
+
+## Event Search (Explore)
+```
+POST /api/v1/sketches/{id}/explore/
+{
+  "query": "source_short:EVT AND message:*logon*",
+  "limit": 500,
+  "fields": ["datetime", "timestamp_desc", "message", "source_short"],
+  "filter": {
+    "chips": [
+      {"type": "datetime_range", "value": "2024-01-01T00:00:00,2024-01-31T23:59:59", "active": true}
+    ]
+  }
+}
+```
+
+## Event Annotation
+```
+POST /api/v1/sketches/{id}/event/annotate/
+{
+  "annotation": "suspicious,lateral-movement",
+  "annotation_type": "tag",
+  "events": {"event_id": "abc123"}
+}
+```
+
+## Supported Timeline Formats
+| Format | Extension | Description |
+|--------|-----------|-------------|
+| Plaso | `.plaso` | log2timeline output |
+| CSV | `.csv` | Timesketch CSV (datetime, message, timestamp_desc) |
+| JSONL | `.jsonl` | One JSON event per line |
+
+## Event Fields
+| Field | Description |
+|-------|-------------|
+| `datetime` | Event timestamp (ISO 8601) |
+| `timestamp_desc` | Timestamp meaning (e.g., "Creation Time") |
+| `message` | Human-readable event description |
+| `source_short` | Source type (EVT, FILE, LOG, REG) |
+| `source_long` | Full source name |
+
+## Analyzers
+```
+POST /api/v1/sketches/{id}/analyzer/
+{"analyzer_names": ["domain", "similarity_scorer", "tagger"]}
+```
+
+## Python Client
+```python
+from timesketch_api_client import config as ts_config
+from timesketch_api_client import client as ts_client
+
+ts = ts_client.TimesketchApi(host, username, password)
+sketch = ts.get_sketch(sketch_id)
+results = sketch.explore(query="*", return_fields="datetime,message")
+```