feat(firewall): add send_wake_on_lan() capability to FirewallDriver

Abstract method for sending a Wake-on-LAN magic packet through a
firewall's driver connection, following the same contract style as
get_nat_translations/get_security_zones. Raises NotImplementedError
by default; concrete drivers implement it per their own API.

tests/test_send_wake_on_lan.py

@@ -0,0 +1,32 @@
+"""Tests for FirewallDriver.send_wake_on_lan default contract."""
+
+import pytest
+from napalm_device_types import FirewallDriver
+
+
+class _BareFirewall(FirewallDriver):
+    """FirewallDriver.__init__ is NetworkDriver's, which itself raises
+    NotImplementedError — override with a no-op so tests exercise
+    send_wake_on_lan itself, not construction."""
+
+    def __init__(self):
+        pass
+
+
+def test_send_wake_on_lan_raises_not_implemented_by_default():
+    with pytest.raises(NotImplementedError):
+        _BareFirewall().send_wake_on_lan("AA:BB:CC:DD:EE:FF")
+
+
+def test_send_wake_on_lan_accepts_optional_interface():
+    with pytest.raises(NotImplementedError):
+        _BareFirewall().send_wake_on_lan("AA:BB:CC:DD:EE:FF", interface="lan")
+
+
+def test_subclass_can_implement_send_wake_on_lan():
+    class MyFirewall(_BareFirewall):
+        def send_wake_on_lan(self, mac_address: str, interface: str = ""):
+            return {"success": True, "output": f"woke {mac_address} via {interface}"}
+
+    result = MyFirewall().send_wake_on_lan("AA:BB:CC:DD:EE:FF", interface="lan")
+    assert result == {"success": True, "output": "woke AA:BB:CC:DD:EE:FF via lan"}