Align supported Python versions to 3.14 only across packaging and CI

[Copilot]

This updates the project's declared Python support to 3.14 only, removing Python 3.13 which is no longer supported by Home Assistant. Packaging constraints and CI expectations are now consistently targeting Python 3.14.

• Packaging metadata and tooling alignment

  • Set requires-python to >=3.14 in pyproject.toml
  • Updated Ruff target version to py314
  • Removed Programming Language :: Python :: 3.13 classifier, keeping only 3.14
  • Tox environments set to ["lint", "3.14"]
  • Tox GitHub Actions mapping targets 3.14 only

• CI coverage update

  • Test workflow matrix runs on Python 3.14 only

• Dependency constraint adjustment

  • Restored homeassistant dev pin in requirements_dev.txt to 2026.5.1

[project]
requires-python = ">=3.14"

[tool.tox]
env_list = ["lint", "3.14"]

[Copilot]

Pull request overview

Aligns the project’s declared and tested Python support to Python 3.13/3.14 so packaging metadata, lint/tooling configuration, tox settings, and CI coverage are consistent.

Changes:

• Update packaging/tooling metadata to target Python 3.13+ (including requires-python, Ruff target, and classifiers).
• Expand tox and CI test matrices to run on both Python 3.13 and 3.14.
• Adjust Home Assistant dev tooling: lower the dev pin in requirements_dev.txt and refine the HA-dev workflow install/test classification behavior.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
requirements_dev.txt	Lowers the pinned homeassistant dev dependency version to align with the supported Python range.
pyproject.toml	Updates requires-python to >=3.13, sets Ruff target to py313, adds a 3.13 classifier, and expands tox envs + GH Actions tox mapping.
.github/workflows/tests.yml	Expands the test workflow matrix to run on Python 3.13 and 3.14.
.github/workflows/home-assistant-dev.yml	Updates HA-dev dependency installation flow and adds pytest outcome classification + conditional workflow failure for integration incompatibility.

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[timlaing]

@copilot Please remove the support for python 3.13 as this is no longer supported by home assistant.

[Copilot]

@copilot Please remove the support for python 3.13 as this is no longer supported by home assistant.

Done. Removed all Python 3.13 references in commit Remove Python 3.13 support, align to Python 3.14 only:

• pyproject.toml: requires-python → >=3.14, Ruff target → py314, removed 3.13 classifier, tox env_list and gh-actions mapping updated
• .github/workflows/tests.yml: removed "3.13" from the test matrix
• requirements_dev.txt: reverted homeassistant pin back to 2026.5.1