feat: Fingerprint-Attribute für Discovery-Scoring

Ergänzt DRIVER_NAME, HTTP_FINGERPRINT, SNMP_FINGERPRINT, SSH_FINGERPRINT,
PORT_SPECS und SNMP_OBJECT_ID_PREFIX gemäß docs/DISCOVERY_FINGERPRINTING.md.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

napalm_openmediavault/openmediavault.py

@@ -22,6 +22,7 @@ import json as _json
 import re
 from typing import Any
 
+from napalm_device_types import FingerprintRule
 from napalm_device_types.models import (
     DiskPoolDict,
     LogicalVolumeDict,
@@ -48,7 +49,14 @@ class OpenMediaVaultDriver(LinuxDriver):
     """
 
     TYPE_LABEL = "Storage"
+    DRIVER_NAME = "openmediavault"
     driver_name = "openmediavault"
+    SSH_FINGERPRINT = [
+        FingerprintRule("debian", weight=4.0),
+    ]
+    HTTP_FINGERPRINT = [
+        FingerprintRule("openmediavault", weight=9.0, mandatory=True),
+    ]
 
     # ── Facts override ─────────────────────────────────────────────────────────