Feature/17 add check/update logic to review and fix missing links between parent and child issues

[miroslavpojer]

Target

Fixes nightly 404 log errors caused by GitHub API replication lag after issue creation, and adds automatic repair of missing parent→child sub-issue links.

Release Notes

• Fix nightly 404 errors caused by GitHub API replication lag (retry with backoff added)
• Automatically repair missing parent→child sub-issue links during sync
• Clearer log messages when an issue cannot be found (deleted or transferred)

Closes #17

[Copilot]

Pull request overview

This PR improves the GitHub issue sync reliability by adding targeted retry/backoff for transient 404s (likely due to GitHub replication lag) and introduces logic to detect/repair missing parent → child sub-issue links during sync.

Changes:

• Add _gh_with_retry and “not found” detection/hints to reduce noisy 404 failures and improve log clarity.
• Add gh_issue_get_sub_issue_numbers() and _ensure_child_linked_to_parent() to detect and repair missing parent→child sub-issue links.
• Add/extend unit tests covering the retry logic and the missing-link repair behavior.

Reviewed changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/shared/github_issues.py	Adds retry/backoff wrapper, 404 detection, improved logging, and sub-issue listing helper.
src/security/utils/issue_sync.py	Adds missing-link repair for existing child issues and uses sub-issue listing + cache.
src/security/utils/models.py	Extends SyncContext with a parent_sub_issues_cache.
tests/security/test_github_issues.py	New unit tests for shared.github_issues retry behavior and 404 hints.
tests/security/utils/test_issue_sync.py	Adds unit tests for _ensure_child_linked_to_parent and updates existing tests for new calls.
.gitignore	Ignores output.txt.

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[Copilot]

Pull request overview

Copilot reviewed 5 out of 6 changed files in this pull request and generated 2 comments.

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[Copilot]

Pull request overview

Copilot reviewed 5 out of 6 changed files in this pull request and generated no new comments.

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[tmikula-dev]

It looks alright to me.

[tmikula-dev]

Does it have some reason for having one or two blank spaces between tests in this module?

[miroslavpojer]

1 line is normal, two lines split logical groups instead of adding extra text delimiters.