Add verified cross-platform source control tool maintenance

[badcuban]

Summary

• add verified WinGet catalog-aware source-control updates and clear stale-catalog errors
• add compact one-click installs for Git, GitHub CLI, GitLab CLI, and Azure DevOps CLI through WinGet or Homebrew
• keep Linux system package managers instructions-only unless Linuxbrew is available

Why

Threadlines previously hard-coded source-control maintenance to Windows WinGet and only showed install hints for missing tools. It also compared upstream releases without verifying whether WinGet had actually published the package, which exposed an Update now action that could only fail when the catalog lagged.

Safety

Commands are selected from a server-side typed allowlist, install/update intent is verified against fresh discovery, and Threadlines rediscovers the tool after completion. No arbitrary client command is executed.

Validation

• vp fmt
• vp lint (existing warnings only)
• vp run typecheck
• focused server source-control tests: 23 passed
• focused web local API tests: 23 passed
• source-control browser suite: 42 passed
• full browser suite: 465 passed, 2 unrelated pre-existing FileViewer editor-adoption timeouts

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
threadlines	Skipped		Aug 14, 2026 2:17pm