Mirror the air-conditioning fan speed and swing feature types

[Terdious]

Mirror of the Gladys core addition (air-conditioning FAN_SPEED, SWING_HORIZONTAL and SWING_VERTICAL feature types) in the device constants and the TypeScript typings, so integrations can declare the full control surface of an AC unit. Companion of the core PR extracted from the Tuya air-conditioner work (#2591).

Summary by CodeRabbit

• New Features
  • Added support for air-conditioning fan speed control.
  • Added support for horizontal and vertical swing controls.
  • Updated type definitions to expose the new feature options.

[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: 0265ee8d-3a02-4aa3-bade-73838ff9499c

📥 Commits

Reviewing files that changed from the base of the PR and between 55c34f1 and e928484.

📒 Files selected for processing (2)

• index.d.ts
• lib/device-constants.js

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📝 Walkthrough

Walkthrough

The air conditioning feature map and its TypeScript declarations now support fan speed, horizontal swing, and vertical swing feature keys.

Changes

Air conditioning features

Layer / File(s)	Summary
Add feature constants and type declarations lib/device-constants.js, index.d.ts	Adds FAN_SPEED, SWING_HORIZONTAL, and SWING_VERTICAL with matching discovery string values to the runtime mapping and exported declarations.

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

Suggested reviewers: pierre-gilles

Poem

A bunny hops through cool machine,
Three new controls now join the scene.
Fan winds softly, swings align,
Left and right, then up in time.
“Hare-raising features!” I cheer,
Airy comfort’s blooming here.

🚥 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 accurately reflects the added air-conditioning fan speed and swing feature types.
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

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