feat: warning when running CLI in home dir

[RomneyDa]

Description

CON-3791

---

Summary by cubic

Adds a TUI warning when the CLI is run from the home directory to nudge users into running cn inside a project folder. Headless mode (-p) is unchanged and never shows the warning.

• New Features
  • Show a yellow “Run cn in a project directory…” warning in the Intro screen when cwd matches the user’s home (using path-resolved checks).
  • Export HOME_DIRECTORY_WARNING and add e2e tests covering TUI vs headless behavior, cross-platform envs, symlink/relative paths, and missing home vars.

[github-actions]

⚠️ AI review completed but no review output was generated. Check the action logs for details.

---

💡 To request a new review, comment @continue-general-review

[cubic-dev-ai]

9 issues found across 2 files

_{React with 👍 or 👎 to teach cubic. You can also tag @cubic-dev-ai to give feedback, ask questions, or re-run the review.}

[RomneyDa]

Addressed cubic feedback:

• IntroMessage: compare home vs cwd case-insensitively on win32
• e2e: avoid using real home as cwd; isolate via temp dir and CONTINUE_GLOBAL_DIR
• e2e: replace '~' test with canonical alt path; add realpath symlink case
• e2e: in 'home cannot be determined' test, mask HOME/USERPROFILE/HOMEDRIVE/HOMEPATH with empty strings

All e2e tests for this suite pass locally: npm run test:e2e -w extensions/cli -- -t "Home Directory Warning".

Generated by cn

[sestinj]

🎉 This PR is included in version 1.12.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀