Return copied backend capability rows

[FlorianPfaff]

Summary

• return copied row dictionaries from iter_api_backend_capabilities() instead of exposing live registry rows
• add a regression test that mutating an iterator row does not mutate API_BACKEND_CAPABILITIES

Bug fixed

iter_api_backend_capabilities() previously returned the dictionaries stored in API_BACKEND_CAPABILITIES directly. Any caller that adjusted a returned row could accidentally mutate the process-global backend capability registry, unlike the other public capability accessors that already return copies.

Validation

• Inspected main..bugfix/copy-backend-capability-rows: 2 files changed, +12/-1.
• Added test_iter_api_backend_capabilities_returns_row_copies in tests/test_backend_capabilities.py.
• Full tests were not run locally because this environment could not clone/install from GitHub.

[github-actions]

✅MegaLinter analysis: Success

Descriptor	Linter	Files	Fixed	Errors	Warnings	Elapsed time
✅ COPYPASTE	jscpd	yes		no	no	79.37s
✅ JSON	prettier	7	0	0	0	1.11s
✅ JSON	v8r	7		0	0	4.3s
✅ MARKDOWN	markdownlint	68	0	0	0	1.99s
✅ MARKDOWN	markdown-table-formatter	68	0	0	0	1.09s
✅ PYTHON	black	1202	36	0	0	69.25s
✅ PYTHON	isort	1202	68	0	0	3.21s
✅ REPOSITORY	checkov	yes		no	no	53.82s
✅ REPOSITORY	gitleaks	yes		no	no	11.68s
✅ REPOSITORY	git_diff	yes		no	no	0.29s
✅ REPOSITORY	secretlint	yes		no	no	56.83s
✅ REPOSITORY	syft	yes		no	no	5.35s
✅ REPOSITORY	trivy-sbom	yes		no	no	5.26s
✅ REPOSITORY	trufflehog	yes		no	no	15.69s
✅ YAML	prettier	11	0	0	0	0.76s
✅ YAML	v8r	11		0	0	12.01s
✅ YAML	yamllint	11		0	0	0.62s

Notices

📣 MegaLinter 9.5.0 is out! Discover the new features and security recommendations in the release announcement. (Skip this info by defining SECURITY_SUGGESTIONS: false)

See detailed reports in MegaLinter artifacts

Your project could benefit from a custom flavor, which would allow you to run only the linters you need, and thus improve runtime performances. (Skip this info by defining FLAVOR_SUGGESTIONS: false)

• Documentation: Custom Flavors
• Command: npx mega-linter-runner@9.5.0 --custom-flavor-setup --custom-flavor-linters PYTHON_BLACK,PYTHON_ISORT,COPYPASTE_JSCPD,JSON_V8R,JSON_PRETTIER,MARKDOWN_MARKDOWNLINT,MARKDOWN_MARKDOWN_TABLE_FORMATTER,REPOSITORY_CHECKOV,REPOSITORY_GIT_DIFF,REPOSITORY_GITLEAKS,REPOSITORY_SECRETLINT,REPOSITORY_SYFT,REPOSITORY_TRIVY_SBOM,REPOSITORY_TRUFFLEHOG,YAML_PRETTIER,YAML_YAMLLINT,YAML_V8R

Show us your support by starring ⭐ the repository