Fletch v0.7.7

What's Changed

• fix(git): surface untracked files as green U with real diffs and line counts by @alchaplinsky in #392
• feat: one-click installs for portable git and agent CLIs by @alchaplinsky in #393
• feat: rebuild onboarding around the three setup requirements by @alchaplinsky in #394
• chore: bump version to v0.7.7 by @alchaplinsky in #395

Full Changelog: v0.7.6...v0.7.7