Fix PLT-1 temperature thresholds pinned to °C

[bharvey88]

The four soil/air temperature inputs are labeled °C with a -10..50 range. HA converts temperature sensor states to the user's unit system, so on a °F install the state is Fahrenheit but the threshold is Celsius: "below 10" is -12 °C (cold alerts never fire) and "above 30" matches normal room readings (heat alerts fire on every repeat check once enabled).

This drops the °C pin the same way AIR-1's min/max temperature inputs handle it:

• Names lose the "(°C)" suffix, selectors lose unit_of_measurement
• Range widened to -20..130 so both scales fit
• Each description says to use the unit the sensor shows in HA, with dual-unit starting points (e.g. 10 °C / 50 °F)

Defaults are unchanged. Existing automations keep their stored values.

🤖 Generated with Claude Code

Summary by CodeRabbit

• Improvements
  • Updated soil and air temperature alert settings to use clearer, unit-aware labels and guidance.
  • Expanded allowed temperature ranges for both minimum and maximum values, supporting a wider set of sensor readings.
  • Removed fixed temperature units so the app can follow the sensor’s displayed unit automatically.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: f1477fc3-a9fa-46f3-b325-3c27ab1869f6

📥 Commits

Reviewing files that changed from the base of the PR and between f84c28e and 847314d.

📒 Files selected for processing (1)

• PLT-1/PLT-1.yaml

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Walkthrough

This PR updates the Soil Temperature and Air Temperature alert threshold inputs in the blueprint YAML file. Field labels are made unit-agnostic, descriptions are expanded with °C/°F guidance, the numeric slider range is widened from -10–50 to -20–130, and fixed unit_of_measurement values are removed.

Changes

Temperature threshold input updates

Layer / File(s)	Summary
Soil and Air Temperature threshold inputs PLT-1/PLT-1.yaml	Min/max fields for Soil and Air Temperature are retitled, given unit-agnostic descriptions with °C/°F examples, numeric range expanded (-10–50 → -20–130), and fixed unit_of_measurement removed from selectors.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Poem

A rabbit hopped through YAML fields so wide,
Stripping fixed degrees, letting units glide,
From -20 to 130, thresholds now stretch,
Celsius or Fahrenheit, both within fetch,
Hop hop hooray for flexible degrees! 🐇🌡️

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes the main fix: removing Celsius-only temperature thresholds in PLT-1.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/plt-1-unit-agnostic-temps

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