apds9960: Add test scenario for gesture and color sensor.

[nedseb]

Closes #29

Summary

• Add YAML test scenario for APDS-9960 gesture/color/proximity sensor
• Uses uAPDS9960 class (MicroPython I2C API variant)
• Add hardware_init to enable light and proximity sensors before reading
• Split device ID test: _read_byte_data for mock, read_register for hardware

Test commands

# Mock tests (CPython)
python3 -m pytest tests/ -v --driver apds9960

# Hardware tests (STeaMi board)
python3 -m pytest tests/ -v --port /dev/ttyACM0 --driver apds9960 -s

Test results

============================== test session starts ==============================
platform linux -- Python 3.13.7, pytest-8.3.5, pluggy-1.5.0 -- /usr/bin/python3
cachedir: .pytest_cache
rootdir: /home/nedjar/sandbox/micropython-steami-lib
configfile: pytest.ini
plugins: typeguard-4.4.2
collected 58 items                                                                                                                                                                                                                                                          

tests/test_scenarios.py::test_scenario[apds9960/Verify device ID register (mock)/mock] 0xAB
PASSED
tests/test_scenarios.py::test_scenario[apds9960/Verify device ID register (hardware)/hardware] 0xAB
PASSED
tests/test_scenarios.py::test_scenario[apds9960/Read ambient light returns expected value/mock] 0x0100
PASSED
tests/test_scenarios.py::test_scenario[apds9960/Read proximity returns expected value/mock] 0x50
PASSED
tests/test_scenarios.py::test_scenario[apds9960/Read red light returns expected value/mock] 0x80
PASSED
tests/test_scenarios.py::test_scenario[apds9960/Ambient light in plausible range/hardware] 812
PASSED
tests/test_scenarios.py::test_scenario[apds9960/Proximity in plausible range/hardware] 18
PASSED
tests/test_scenarios.py::test_scenario[apds9960/Light and proximity values feel correct/hardware]   Ambient light: 810 
  Proximity: 20 
  [MANUAL] Les valeurs de lumière ambiante et de proximité sont-elles cohérentes ? [y/n] y
True
PASSED

============================== 8 passed in 35.38s ===============================

[Copilot]

Pull request overview

Adds a new YAML scenario to exercise the apds9960 driver via the shared scenario-based test framework, covering mock ID/value reads and basic hardware sanity checks.

Changes:

• Introduces tests/scenarios/apds9960.yaml defining mock register fixtures for APDS-9960.
• Adds mock-mode assertions for ID / ambient light / proximity / red channel reads.
• Adds hardware-mode “plausible range” checks and a manual validation step for ambient light + proximity.

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[semantic-release-updater]

🎉 This PR is included in version 0.0.2 🎉

The release is available on GitHub release

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