sidebranch launches local visual PR review

The clever idea is its restraint: sidebranch is not another AI reviewer, but a focused human sign-off layer for the last visual checks after coding agents generate changes.

• –Git worktrees eliminate stash, reset, and checkout risks while preserving uncommitted work.
• –Blend and layer modes make subtle CSS, layout, and visual regressions easier to spot than text diffs.
• –Framework-agnostic HTTP support covers stacks from Next.js and Vite to Django and Rails.
• –Complex apps still require configuration for shared databases, credentials, and multi-process development setups.
• –Local-only execution is attractive for proprietary code, though persistent panes can consume additional disk space and system resources.