Lock in the same ARTIK051_DONGLE_REF fix for the fridge half (issue #78)

RR40M7165WW is the fridge half of the same household dongle setup as
issue #77's freezer -- identical pipe-delimited ARTIK051_DONGLE_REF
modelNum, so the previous commit's detection and door-sensor fixes
already cover it with no further code changes. Add its fixture as a
second, independent regression case: it exercises the 'cooler' instance
segment instead of 'freezer' for both the temperature pattern caps and
DOOR_GENERIC, and notably reports /door/onedoorfreezer/vs/0 despite
being a single-door fridge (shared firmware naming across the product
line, not an actual second compartment) -- worth having its own golden
so that stays working too.

tests/fixtures/golden/refrigerator_artik051_dongle_ref_cooler.json

@@ -0,0 +1,23 @@
+{
+  "state_keys": [
+    "alarm_code",
+    "cooler_setpoint",
+    "cooler_temperature",
+    "defrost_active",
+    "defrost_delay",
+    "diagnosis_status",
+    "door_cooler_open",
+    "door_onedoorfreezer_open",
+    "energy_kwh",
+    "energy_last_month_kwh",
+    "energy_saved_kwh",
+    "energy_this_month_kwh",
+    "firmware_update",
+    "ice_maker_enabled",
+    "power_energy_kwh",
+    "power_watts",
+    "rapid_freezing",
+    "rapid_fridge",
+    "sabbath_mode"
+  ]
+}

tests/fixtures/refrigerator_artik051_dongle_ref_cooler_device.json

@@ -0,0 +1,201 @@
+{
+  "device0": [
+    {
+      "rt": [
+        "x.com.samsung.devcol",
+        "oic.wk.col"
+      ],
+      "if": [
+        "oic.if.baseline",
+        "oic.if.ll",
+        "oic.if.b"
+      ]
+    },
+    {
+      "href": "/alarms/vs/0",
+      "rep": {}
+    },
+    {
+      "href": "/bespoke/vs/0",
+      "rep": {
+        "x.com.samsung.da.BespokeProduct": "Off"
+      }
+    },
+    {
+      "href": "/defrost/delay/0",
+      "rep": {}
+    },
+    {
+      "href": "/defrost/delay/vs/0",
+      "rep": {}
+    },
+    {
+      "href": "/diagnosis/vs/0",
+      "rep": {
+        "x.com.samsung.da.diagnosisStart": "Ready"
+      }
+    },
+    {
+      "href": "/door/cooler/0",
+      "rep": {
+        "openState": "Close"
+      }
+    },
+    {
+      "href": "/door/onedoorfreezer/vs/0",
+      "rep": {
+        "x.com.samsung.da.openState": "Close"
+      }
+    },
+    {
+      "href": "/doors/vs/0",
+      "rep": {
+        "x.com.samsung.da.items": [
+          {
+            "x.com.samsung.da.id": "1",
+            "x.com.samsung.da.description": "Door",
+            "x.com.samsung.da.openState": "Close"
+          },
+          {
+            "x.com.samsung.da.id": "3",
+            "x.com.samsung.da.description": "Door",
+            "x.com.samsung.da.openState": "Close"
+          }
+        ]
+      }
+    },
+    {
+      "href": "/energy/consumption/vs/0",
+      "rep": {}
+    },
+    {
+      "href": "/file/information/vs/0",
+      "rep": {
+        "x.com.samsung.timeoffset": "+01:00",
+        "x.com.samsung.supprtedtype": 1
+      }
+    },
+    {
+      "href": "/icemaker/status/0",
+      "rep": {}
+    },
+    {
+      "href": "/icemaker/status/vs/0",
+      "rep": {}
+    },
+    {
+      "href": "/information/vs/0",
+      "rep": {
+        "x.com.samsung.da.modelNum": "ARTIK051_DONGLE_REF|00090741|00090028001130300100000000000000",
+        "x.com.samsung.da.description": "ARTIK_REF_17K",
+        "x.com.samsung.da.serialNum": "**REDACTED**",
+        "x.com.samsung.da.otnDUID": "**REDACTED**",
+        "x.com.samsung.da.items": [
+          {
+            "x.com.samsung.da.id": "0",
+            "x.com.samsung.da.description": "WiFi Module",
+            "x.com.samsung.da.type": "Software",
+            "x.com.samsung.da.number": "011120190711",
+            "x.com.samsung.da.newVersionAvailable": "0"
+          },
+          {
+            "x.com.samsung.da.id": "1",
+            "x.com.samsung.da.description": "Micom",
+            "x.com.samsung.da.type": "Firmware",
+            "x.com.samsung.da.number": "14040703,ffffffff",
+            "x.com.samsung.da.newVersionAvailable": "0"
+          }
+        ]
+      }
+    },
+    {
+      "href": "/mode/0",
+      "rep": {
+        "supportedModes": [
+          "HOMECARE_WIZARD_V2",
+          "RVACATION_ON",
+          "RVACATION_OFF"
+        ],
+        "modes": [
+          "RVACATION_OFF"
+        ]
+      }
+    },
+    {
+      "href": "/mode/vs/0",
+      "rep": {
+        "x.com.samsung.da.supportedModes": [
+          "HOMECARE_WIZARD_V2",
+          "RVACATION_ON",
+          "RVACATION_OFF"
+        ],
+        "x.com.samsung.da.modes": [
+          "RVACATION_OFF"
+        ]
+      }
+    },
+    {
+      "href": "/otninformation/vs/0",
+      "rep": {
+        "x.com.samsung.da.target": "Micom",
+        "x.com.samsung.da.newVersionAvailable": "false"
+      }
+    },
+    {
+      "href": "/refrigeration/0",
+      "rep": {
+        "defrost": false,
+        "rapidFreeze": false,
+        "rapidCool": false
+      }
+    },
+    {
+      "href": "/refrigeration/vs/0",
+      "rep": {
+        "x.com.samsung.da.rapidFridge": "Off"
+      }
+    },
+    {
+      "href": "/sabbath/vs/0",
+      "rep": {}
+    },
+    {
+      "href": "/temperature/current/cooler/0",
+      "rep": {
+        "range": [
+          1.0,
+          7.0
+        ],
+        "units": "C",
+        "temperature": 3.0
+      }
+    },
+    {
+      "href": "/temperature/desired/cooler/0",
+      "rep": {
+        "range": [
+          1.0,
+          7.0
+        ],
+        "units": "C",
+        "temperature": 3.0
+      }
+    },
+    {
+      "href": "/temperatures/vs/0",
+      "rep": {
+        "x.com.samsung.da.items": [
+          {
+            "x.com.samsung.da.id": "1",
+            "x.com.samsung.da.description": "Fridge",
+            "x.com.samsung.da.desired": "3",
+            "x.com.samsung.da.current": "3",
+            "x.com.samsung.da.maximum": "7",
+            "x.com.samsung.da.minimum": "1",
+            "x.com.samsung.da.unit": "Celsius"
+          }
+        ]
+      }
+    }
+  ]
+}

tests/test_fridge_capabilities.py

@@ -287,6 +287,42 @@ class TestArtik051DongleRefFixtureCoverage:
         assert state['freezer_setpoint'] == -20.0
 
 
+class TestArtik051DongleRefCoolerFixtureCoverage:
+    """Issue #78: RR40M7165WW, the fridge half of the same household
+    ARTIK051_DONGLE_REF dongle setup as issue #77's freezer. Notably reports
+    *two* door hrefs (/door/cooler/0 and /door/onedoorfreezer/vs/0) despite
+    being a single-door fridge, not a fridge/freezer combo -- apparently
+    shared firmware naming across the product line, not a real second
+    compartment. Both must still resolve to zero unbound hrefs and real
+    values with the same fix as #77."""
+
+    def test_no_unbound_hrefs_and_expected_entities(self):
+        from custom_components.localthings.registry.adapter import flatten
+        from custom_components.localthings.registry.by_type import (
+            for_device_by_model, refrigerator,
+        )
+        from custom_components.localthings.registry.discovery import discover
+        from tests.conftest import _load_device
+
+        resources = _load_device('refrigerator_artik051_dongle_ref_cooler')
+        info = resources['/information/vs/0']
+        reg = for_device_by_model(
+            info['x.com.samsung.da.modelNum'], info['x.com.samsung.da.description'])
+        assert reg is not None and reg.name == 'refrigerator'
+
+        unbound = []
+        bound = discover(
+            resources, refrigerator.REGISTRY.capabilities,
+            refrigerator.REGISTRY.pattern_capabilities, log=unbound.append,
+        )
+        assert unbound == []
+        state = flatten(bound, resources)
+        assert state['door_cooler_open'] is False
+        assert state['door_onedoorfreezer_open'] is False
+        assert state['cooler_temperature'] == 3.0
+        assert state['cooler_setpoint'] == 3.0
+
+
 class TestRefrigeratorAiEnergyLevelFixtureCoverage:
     """AI energy-saving level (common.AI_ENERGY_LEVEL, see
     test_common_capabilities.py) is exercised end-to-end here against the

tests/test_golden_regression.py

@@ -166,6 +166,24 @@ def test_registry_reproduces_golden_state_keys_for_artik051_ref_17k():
     )
 
 
+def test_registry_reproduces_golden_state_keys_for_artik051_dongle_ref_cooler():
+    """RR40M7165WW (issue #78) -- the same ARTIK051_DONGLE_REF household
+    dongle family as issue #77's freezer, but the fridge half: reports
+    /door/cooler/0 *and* /door/onedoorfreezer/vs/0 (the latter apparently
+    shared firmware naming, not an actual second freezer compartment) plus
+    /temperature/{current,desired}/cooler/0. Same pipe-delimited modelNum
+    detection gap and DOOR_GENERIC field-name gap as #77, same fix."""
+    from tests.conftest import _load_device
+    resources = _load_device('refrigerator_artik051_dongle_ref_cooler')
+    golden = json.loads((GOLDEN / 'refrigerator_artik051_dongle_ref_cooler.json').read_text())
+    state_keys = _new_state_keys('refrigerator_artik051_dongle_ref_cooler', resources)
+    assert set(state_keys) == set(golden['state_keys']), (
+        f"state_keys mismatch:\n"
+        f"  extra:   {sorted(set(state_keys) - set(golden['state_keys']))}\n"
+        f"  missing: {sorted(set(golden['state_keys']) - set(state_keys))}"
+    )
+
+
 def test_registry_reproduces_golden_state_keys_for_artik051_dongle_ref():
     """ARTIK051_DONGLE_REF standalone freezer (issues #77/#83) -- reports no
     oneUiVersion and a pipe-delimited modelNum ('..._DONGLE_REF|<rest>')