Make it easy to discover Continue CLI (cn)

[tomasz-stefaniak]

Description

Added banner that appears after N chat messages, and another one that appears in the settings. They can be permanently dismissed.

AI Code Review

• Team members only: AI review runs automatically when PR is opened or marked ready for review
• Team members can also trigger a review by commenting @continue-review

Checklist

• [] I've read the contributing guide
• [] The relevant docs, if any, have been updated or created
• [] The relevant tests, if any, have been updated or created

Screen recording or screenshot

[ When applicable, please include a short screen recording or screenshot - this makes it much easier for us as contributors to review and understand your changes. See this PR as a good example. ]

Tests

[ What tests were added or updated to ensure the changes work as expected? ]

---

Summary by cubic

Adds a CLI install banner that detects when the Continue CLI (cn) isn’t installed and offers one-click install, copy, and docs. Appears in Config and in Chat after 3 user messages, supports permanent dismissal, and implements Linear CON-4200.

• New Features
  • Platform-aware detection via “which cn” (mac/linux) or “where cn” (windows) with error handling.
  • Sticky banner in Config; shows in Chat when userMessageCount >= 3.
  • Install command with Copy and Run buttons, plus a “Learn more” link to docs.
  • Permanent dismissal stored under localStorage key hasDismissedCliInstallBanner.
  • Unit tests cover detection, content, interactions, thresholds, and dismissal.

[github-actions]

⚠️ PR Title Format

Your PR title doesn't follow the conventional commit format, but this won't block your PR from being merged. We recommend using this format for better project organization.

Expected Format:

<type>[optional scope]: <description>

Examples:

• feat: add changelog generation support
• fix: resolve login redirect issue
• docs: update README with new instructions
• chore: update dependencies

Valid Types:

feat, fix, docs, style, refactor, perf, test, build, ci, chore, revert

This helps with:

• 📝 Automatic changelog generation
• 🚀 Automated semantic versioning
• 📊 Better project history tracking

This is a non-blocking warning - your PR can still be merged without fixing this.

[github-actions]

✅ Review Complete

Code Review Summary

⚠️ Continue configuration error. Please verify that the assistant exists in Continue Hub.

---

[cubic-dev-ai]

No issues found across 5 files