docs(agents): Correct and complete AGENTS.md content

[piotrzajac]

Summary

Add missing root-level files to the repository layout tree, clarify the dotnet-stryker tool resolution comment, and add the missing Dependabot groups and the commit-message workflow to the CI diagram.

Summary by CodeRabbit

• Documentation
  • Updated guidance for mutation testing execution paths and command references.
  • Expanded Dependabot dependency grouping documentation with new categories for test tooling, shared dependencies, and GitHub Actions.
  • Enhanced CI/security workflow documentation with commit message validation configuration details.

Checklist

• Commit messages follow Conventional Commits (type(scope): description)
• dotnet build src/Objectivity.AutoFixture.XUnit2.AutoMock.sln passes with no warnings
• dotnet test src/Objectivity.AutoFixture.XUnit2.AutoMock.sln passes on all framework slices
• Code coverage remains at least at the level prior the change (verified by Codecov)
• Mutation score remains at least at the level prior the change (verified by Stryker)
• New tests follow the GIVEN/WHEN/THEN naming convention and AAA structure (see AGENTS.md)
• No new [SuppressMessage] without a justification comment
• No // TODO: comments added — open a GitHub issue instead
• No new dependencies introduced that are incompatible with the MIT license (verified by FOSSA)

[coderabbitai]

Caution

Review failed

Pull request was closed or merged during review

📝 Walkthrough

Walkthrough

Documentation update to AGENTS.md expanding configuration artifact references and Git automation context. Includes updates to mutation testing command guidance, CI/security workflow documentation, and Dependabot dependency grouping table with new test tooling, shared dependencies, and GitHub Actions groups.

Changes

Cohort / File(s)

Summary

Documentation Update AGENTS.md

Added references to repo-root configuration files (CLAUDE.md, CONTRIBUTING.md, dotnet-tools.json, commit-message-config.json, .coderabbit.yaml, .husky/). Updated mutation test command to clarify dotnet-tools.json location and execution context. Expanded Dependabot dependency grouping table with test tooling, shared/common dependencies, "Other" bucket, and GitHub Actions group with commit-message prefix.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Possibly related PRs

• fix(dependabot): Ensure NuGet package updates across projects in single PR #315: Implements the Dependabot NuGet dependency grouping changes documented in this PR.
• Enforce conventional commits #305: Implements the dotnet-tools.json, commit-message.yml, and .husky/ tooling that this PR documents.
• chore(Contributing): Add CONTRIBUTING.md file #303: Adds CONTRIBUTING.md file referenced in this documentation update.

Suggested labels

enhancement

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'docs(agents): Correct and complete AGENTS.md content' clearly summarizes the main change—documentation updates to AGENTS.md—and follows Conventional Commits format.
Description check	✅ Passed	The description includes a summary explaining the changes, marks all checklist items as completed, and follows the required template structure with appropriate justifications.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch docs/agents-md-corrections

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