feat(cli): add help command

[Kikobeats]

Summary

• Add microlink help as a first-class CLI command with the same output as microlink --help
• microlink help <product> matches microlink <product> --help

Test plan

• microlink help equals microlink --help
• microlink help screenshot equals microlink screenshot --help
• Existing CLI help tests still pass in CI

Made with Cursor

Summary by CodeRabbit

• New Features
  • Added a help command to display general CLI guidance.
  • Added support for scoped help, such as help <product>, to show product-specific usage information.
  • The help command now provides the same guidance as the corresponding --help options.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Advanced

Run ID: a28f3604-37fe-49ab-a2db-df0c863fe509

📥 Commits

Reviewing files that changed from the base of the PR and between 6d33b93 and 4da8b54.

📒 Files selected for processing (3)

• packages/core/bin/help.js
• packages/core/bin/run.js
• packages/core/test/cli.mjs

Included review availability: Your plan provides up to 1 included review per hour; 0 remain after this review.

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📝 Walkthrough

Walkthrough

The CLI now supports help and help <command> forms. Both forms route through showHelp, and tests verify output matches the existing --help forms.

Changes

CLI Help Command

Layer / File(s)	Summary
Help command definition packages/core/bin/help.js	The command registry and global help text now document help [command] with examples.
Help command dispatch and validation packages/core/bin/run.js, packages/core/test/cli.mjs	The CLI passes an optional target to showHelp. Tests compare general and command-specific help output with the existing --help forms.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Merge Risk: ⚪ Minimal · up to 4da8b

The CLI now supports microlink help and microlink help <product> with output matching existing help flags. No current merge-blocking risk is identified.

Sequence Diagram(s)

sequenceDiagram
  participant CLI
  participant run.js
  participant showHelp
  CLI->>run.js: invoke help [target]
  run.js->>showHelp: showHelp(target)
  showHelp-->>CLI: render scoped help output

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🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely identifies the main change: adding a CLI help command.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 3…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/cli-help

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[coveralls]

Coverage Report for CI Build 34197054688

Warning

No base build found for commit 6d33b93 on master.
Coverage changes can't be calculated without a base build.
If a base build is processing, this comment will update automatically when it completes.

Coverage: 77.971%

Details

• Patch coverage: 12 of 12 lines across 2 files are fully covered (100%).

Uncovered Changes

No uncovered changes found.

Coverage Regressions

Requires a base build to compare against. How to fix this →

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Coverage Stats

Relevant Lines:	4884
Covered Lines:	3813
Line Coverage:	78.07%
Relevant Branches:	822
Covered Branches:	636
Branch Coverage:	77.37%
Branches in Coverage %:	Yes
Coverage Strength:	24.15 hits per line

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💛 - Coveralls