fix: expose the CLI package version

[nicholls73]

Summary

• print the installed package version for openbrain version, openbrain --version, and openbrain -V
• reuse the existing package-version reader used by update checks
• cover all three forms through the installed CLI regression test

Why

The CLI previously treated every version form as an unknown command and printed general help instead.

Testing

• pnpm lint
• pnpm build
• pnpm test (128 passed, 1 skipped)
• manual checks against dist/cli.js for all three version forms

Summary by CodeRabbit

• New Features

  • Added a version command to display the installed application version.
  • Added --version and -V aliases for quick version checks.
  • Updated command-line usage information to document the new options.

• Bug Fixes

  • Improved installation verification to ensure all supported version options return the correct installed version.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 27dc378b-5e91-479c-b3cc-57fb92d299d2

📥 Commits

Reviewing files that changed from the base of the PR and between ba513c5 and 60a23ee.

📒 Files selected for processing (1)

• src/cli.ts

🚧 Files skipped from review as they are similar to previous changes (1)

• src/cli.ts

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📝 Walkthrough

Walkthrough

The CLI adds a version command with --version and -V aliases. Each option prints the installed package version and exits. The usage text and installation test cover the new behavior.

Changes

CLI version reporting

Layer / File(s)	Summary
Version command and aliases src/cli.ts, tests/install-script.test.ts	The CLI reads and prints the current package version for version, --version, and -V. The usage text documents all three forms. The installation test verifies each argument.

Estimated code review effort: 2 (Simple) | ~10 minutes

Sequence Diagram(s)

sequenceDiagram
  participant CLI as openbrain CLI
  participant Reader as readCurrentVersion()
  participant Package as installed package.json
  CLI->>Reader: handle version, --version, or -V
  Reader->>Package: read installed version
  Package-->>Reader: return package version
  Reader-->>CLI: print version and exit

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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 summarizes the main change: exposing the installed package version through the CLI.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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 codex/add-cli-version-command

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_{Comment @coderabbitai help to get the list of available commands.}

[coderabbitai]

🧹 Nitpick comments (1)

src/cli.ts (1)

642-642: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick win

Document the supported version aliases.

The usage text lists openbrain version, but it omits openbrain --version and openbrain -V. Add both aliases so users can discover every supported version form.

Proposed usage update

   openbrain version
+  openbrain --version
+  openbrain -V

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@src/cli.ts` at line 642, Update the usage text around the existing “openbrain
version” entry in the CLI help to also list the supported “openbrain --version”
and “openbrain -V” aliases, so all version invocation forms are documented.

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Nitpick comments:
In `@src/cli.ts`:
- Line 642: Update the usage text around the existing “openbrain version” entry
in the CLI help to also list the supported “openbrain --version” and “openbrain
-V” aliases, so all version invocation forms are documented.

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 4f1ff148-162d-4576-af7d-618d7a6455a2

📥 Commits

Reviewing files that changed from the base of the PR and between a4663e1 and ba513c5.

📒 Files selected for processing (2)

• src/cli.ts
• tests/install-script.test.ts