fix(api): Re-enable the TOF sensor on the Z for the Flex Stacker module. (#19072)

Author: vegano1

api/src/opentrons/protocol_engine/commands/flex_stacker/retrieve.py

@@ -275,11 +275,7 @@ async def execute(self, params: RetrieveParams) -> _ExecuteReturn:
             try:
                 stacker_hw.set_stacker_identify(True)
                 await stacker_hw.dispense_labware(
-                    labware_height=stacker_state.get_pool_height_minus_overlap(),
-                    # TODO (ba, 2025-07-18): This disables Labware sensing on the
-                    # stacker tower due to inconsistensies with data seen
-                    # in PVT stacker, review this once we have more data.
-                    enforce_hopper_lw_sensing=False,
+                    labware_height=stacker_state.get_pool_height_minus_overlap()
                 )
             except (
                 FlexStackerStallError,

api/tests/opentrons/protocol_engine/commands/flex_stacker/test_retrieve.py

@@ -206,9 +206,7 @@ async def test_retrieve_primary_only(
     result = await subject.execute(data)
 
     decoy.verify(
-        await stacker_hardware.dispense_labware(
-            labware_height=4, enforce_hopper_lw_sensing=False
-        ),
+        await stacker_hardware.dispense_labware(labware_height=4),
         times=1,
     )
 
@@ -308,9 +306,7 @@ async def test_retrieve_primary_and_lid(
     result = await subject.execute(data)
 
     decoy.verify(
-        await stacker_hardware.dispense_labware(
-            labware_height=8, enforce_hopper_lw_sensing=False
-        ),
+        await stacker_hardware.dispense_labware(labware_height=8),
         times=1,
     )
 
@@ -432,9 +428,7 @@ async def test_retrieve_primary_and_adapter(
     result = await subject.execute(data)
 
     decoy.verify(
-        await stacker_hardware.dispense_labware(
-            labware_height=12, enforce_hopper_lw_sensing=False
-        ),
+        await stacker_hardware.dispense_labware(labware_height=12),
         times=1,
     )
 
@@ -583,7 +577,7 @@ async def test_retrieve_primary_adapter_and_lid(
 
     decoy.verify(
         await stacker_hardware.dispense_labware(
-            labware_height=16, enforce_hopper_lw_sensing=False
+            labware_height=16,
         ),
         times=1,
     )
@@ -742,7 +736,7 @@ async def test_retrieve_raises_recoverable_error(
 
     decoy.when(
         await stacker_hardware.dispense_labware(
-            labware_height=16, enforce_hopper_lw_sensing=False
+            labware_height=16,
         )
     ).then_raise(shared_data_error)