feat: report the running kernel's modules and build configuration

LinuxDriver mixes in KernelFactsMixin from napalm-device-types and supplies
only the transport: the shared read-only command over the existing SSH
session, no sudo, one round trip. OpenMediaVault and QNAP inherit it.

Requires napalm-device-types 2.1.0.

napalm_linux/linux.py

@@ -31,7 +31,7 @@ from netmiko.exceptions import (
 )
 from napalm.base.exceptions import ConnectionException, ConnectionClosedException
 from napalm.base.netmiko_helpers import netmiko_args
-from napalm_device_types import FingerprintRule, OSDriver
+from napalm_device_types import FingerprintRule, KernelFactsMixin, OSDriver
 from napalm_device_types.models import (
     ApplyUpdatesResultDict,
     CronJobDict,
@@ -138,7 +138,7 @@ def _short_image_id(raw: str) -> str:
     return raw.strip().removeprefix("sha256:")[:12]
 
 
-class LinuxDriver(OSDriver):
+class LinuxDriver(KernelFactsMixin, OSDriver):
     """NAPALM driver for generic Linux systems.
 
     Connects via SSH (netmiko ``linux`` device type) and auto-detects the
@@ -840,6 +840,14 @@ class LinuxDriver(OSDriver):
             }
         }
 
+    # ------------------------------------------------------------------
+    # KernelFactsMixin – the transport for get_kernel_facts
+    # ------------------------------------------------------------------
+
+    def _run_kernel_facts_command(self, command: str) -> str:
+        """The transport for ``KernelFactsMixin.get_kernel_facts``: read-only, no sudo."""
+        return self._send(command, read_timeout=60)
+
     # ------------------------------------------------------------------
     # OSDriver – package management
     # ------------------------------------------------------------------