Add Tuya Zemismart ZM25EL cover motor _TZE200_68nvbio9

[petruknw]

Overview

This PR adds a Tuya v2 TuyaQuirkBuilder‐based cover quirk for the Zemismart ZM25EL battery blind motor (_TZE200_68nvbio9 / TS0601).

The implementation follows the new TuyaWindowCovering + .tuya_cover() pattern introduced in PR #4779 and is based on the DP mapping used in the Zigbee2MQTT external converter for this device.

Device

• Brand: Zemismart / Tuya
• Model: ZM25EL (labelled as TS0601)
• Manufacturer: _TZE200_68nvbio9

Features exposed

Standard ZHA cover entity with:

• Open / close / stop
• Lift position with slider (0–100)

Configuration entities:

• Motor direction select (DP5: forward / back)
• Click up / Click down buttons (DP20) for single‐step positioning
• Set upper / lower limit, Delete upper / lower limit, Delete all limits buttons (DP16) for border calibration

Diagnostic entities:

• Battery percentage (DP13)
• Motor fault binary sensor (DP12)

Datapoint mapping

The quirk uses the following Tuya DPs, matching the Z2M converter:

DP	Purpose	Values
1	State	0=open, 1=stop, 2=close
2	Current position	0–100 (0=closed, 100=open → inverted)
3	Target position	0–100 (same inversion)
5	Motor direction	0=forward, 1=back
12	Motor fault	true/false
13	Battery	0–100
16	Border/limits	up, down, up_delete, down_delete, remove_top_bottom
20	Click control	up, down

Implementation details

• Uses TuyaWindowCovering and .tuya_cover() for core cover behaviour (open/close/stop and position)
• Uses tuya_dp_attribute + write_attr_button on TUYA_CLUSTER_ID for border calibration and click control, consistent with _TZE284_3mzb0sdz
• Exposes motor_fault as a diagnostic binary sensor with PROBLEM device class
• No custom device class required; follows the v2 builder pattern

Testing

Environment: Home Assistant 2026.3, ZHA with zhaquirks 1.0.x

Verified:

• ✅ Open/close/stop and position slider behave as expected
• ✅ Reverse direction select flips direction correctly
• ✅ All calibration buttons (set/delete upper/lower, delete all) perform documented actions
• ✅ Click up/down move blind in small steps
• ✅ Motor fault sensor stays OK during normal operation (no error floods)

---

Closes #3118

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.66%. Comparing base (20a0777) to head (7e63ead).
⚠️ Report is 38 commits behind head on dev.

Additional details and impacted files

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  Coverage   92.66%   92.66%           
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  Files         380      380           
  Lines       12766    12773    +7     
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+ Hits        11829    11836    +7     
  Misses        937      937           

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