chore: align ruff lint scope

[PascalThuet]

What

• Expand the Python Ruff CI job from src/ to src tests.
• Replace an invalid test-only # noqa: unreachable with # pragma: no cover.
• Remove the unused BASH import exposed by linting the test suite.
• Keep the local development guide aligned with the CI lint command.

Why

PR #3132 added Ruff subprocess-security checks that were verified against tests locally, but CI only linted src/. This keeps CI aligned with the intended src tests Ruff scope and removes the pre-existing lint issues exposed by that scope.

Validation

• uvx ruff check src tests
• .venv/bin/python -m pytest tests/test_github_http.py tests/extensions/test_update_agent_context_feature_json.py tests/test_github_workflows.py -q (36 passed, 3 skipped)
• .venv/bin/python -m pytest -o addopts="" -q (4431 passed, 112 skipped)
• git diff --check

[PascalThuet]

Review round summary: rebased onto current main, expanded Ruff coverage to src tests, fixed the invalid test pragma and the unused import exposed by the broader lint scope, and aligned the local-development documentation. Validation passed with Ruff, 36 targeted tests (3 skipped), and the full suite (4,431 passed; 112 skipped). Commit: 3295f9868a3145eea735743101e804a29665332e.

Posted on behalf of @PascalThuet by Codex (model: GPT-5, autonomous).

[Copilot]

Pull request overview

Aligns Ruff linting across CI and local development by including the test suite.

Changes:

• Expands Ruff checks to src tests.
• Fixes test-suite lint findings.
• Updates local development documentation.

Show a summary per file

File	Description
.github/workflows/test.yml	Adds tests to CI lint scope.
docs/local-development.md	Documents the updated lint command.
tests/test_github_http.py	Uses the correct coverage exclusion pragma.
tests/extensions/test_update_agent_context_feature_json.py	Removes an unused import.

Review details

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• Files reviewed: 4/4 changed files
• Comments generated: 0
• Review effort level: Medium

[mnriem]

Thank you!