The GitHub mirror is gone, so the HACS packaging and the GitHub-only CI no longer have anything to run against. Remove hacs.json and the .github/ workflow. Both of its jobs (hassfest and hacs/action) were gated on `github.server_url == 'https://github.com'` and are GitHub-hosted actions, so neither can run on the Gitea runner. Replace them with .gitea/workflows/ci.yml: - lint: ruff check + ruff format --check, version pinned because ruff's default rule set and formatter output move between releases - validate: byte-compile, then scripts/validate_integration.py, which covers the part of hassfest that matters for a manually installed custom component (manifest keys, domain/directory agreement, and translations matching strings.json key for key) README now documents manual installation only, and points at the local CI commands. manifest.json documentation and issue_tracker point at the Gitea repo; NOTICE keeps its upstream attribution. Adopting ruff surfaced two real defects, fixed here: - climate.async_set_hvac_mode raised HomeAssistantError for an unsupported mode from inside a try that catches Exception, so the message was re-wrapped as "Failed to set HVAC mode: Unsupported HVAC mode: ...". The validation is now hoisted above the try. - config_flow.async_step_reauth_confirm swallowed unexpected exceptions into a bare "unknown" error with no log, unlike the user step. It now logs via _LOGGER.exception. Remaining changes are mechanical: import ordering, docstrings on public methods, ClassVar on mutable class attributes, contextlib.suppress, and asyncio.TimeoutError -> TimeoutError (an alias since 3.11). The smoke test now reads the new DknCloudNaClient.socket_connected property rather than reaching into _socket. Co-authored-by: anthropic/claude-opus-5