Add translation of exceptions in WLED

[mik-laj]

Breaking change

Proposed change

Ref: https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/exception-translations

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request:
• Link to developer documentation pull request:
• Link to frontend pull request:

Checklist

• I understand the code I am submitting and can explain how it works.
• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• I have followed the perfect PR recommendations
• The code has been formatted using Ruff (ruff format homeassistant tests)
• Tests have been added to verify that the new code works.
• Any generated code has been carefully reviewed for correctness and compliance with project standards.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly.
  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• For the updated dependencies - a link to the changelog, or at minimum a diff between library versions is added to the PR description.

To help with the load of incoming pull requests:

• I have reviewed two other open pull requests in this repository.

[home-assistant]

Hey there @frenck, mind taking a look at this pull request as it has been labeled with an integration (wled) you are listed as a code owner for? Thanks!

Code owner commands

Code owners of wled can trigger bot actions by commenting:

• @home-assistant close Closes the pull request.
• @home-assistant rename Awesome new title Renames the pull request.
• @home-assistant reopen Reopen the pull request.
• @home-assistant unassign wled Removes the current integration label and assignees on the pull request, add the integration domain after the command.
• @home-assistant add-label needs-more-information Add a label (needs-more-information, problem in dependency, problem in custom component) to the pull request.
• @home-assistant remove-label needs-more-information Remove a label (needs-more-information, problem in dependency, problem in custom component) on the pull request.

[Copilot]

Pull Request Overview

This PR adds translatable exception messages to the WLED integration, aligning with the Gold quality scale requirement for exception translations. The changes convert hardcoded English error messages to use translation keys with proper domain and placeholder support.

Key changes:

• Error messages in coordinator and helper functions now use HomeAssistantError and UpdateFailed with translation parameters
• Three translation keys added: connection_error, invalid_response_wled_error, and invalid_response_github_error
• Tests updated to verify translation domain and keys instead of matching error message text

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
homeassistant/components/wled/strings.json	Adds exception translations with placeholders for error details
homeassistant/components/wled/helpers.py	Converts HomeAssistantError exceptions to use translation keys and domain
homeassistant/components/wled/coordinator.py	Converts UpdateFailed exceptions to use translation keys and domain
tests/components/wled/test_button.py	Updates tests to verify translation domain and keys instead of error message text
tests/components/wled/test_update.py	Updates log message assertion to match new translated error message