feat(workspace): add one-click workspace bootstrap

[nettee]

Summary

• add wtk workspace bootstrap <repo-path>... for one-command Workspace initialization
• generate Workspace manifest refs, .gitignore, and AGENTS.md, then create the initial commit
• document bootstrap and add E2E coverage for success and fail-fast cases

Verification

• cargo test --lib
• uv run --project e2e pytest e2e/test_cli_errors.py e2e/test_workspace_mode.py -k 'bootstrap or cli_usage'

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 2c13babe87

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".

[nettee]

Looper fixer round complete — 71cd898

• ✅ Review comment on src/workspace.rs (@chatgpt-codex-connector) — thread
  • src/workspace.rs already initializes bootstrap repositories with git init -b main, and I added coverage in e2e/test_workspace_mode.py that forces Git's default branch to master and asserts the workspace still lands on main.

_{🔁 Powered by Looper · runner=fixer · agent=codex · An autonomous AI dev team for your GitHub repos.}

[chatgpt-codex-connector]

To use Codex here, create an environment for this repo.