* Fix structured diff parsing for no-prefix paths
Git can emit diff --git path path when diff.noprefix is enabled. The structured diff parser only handled the default a/path b/path form, so checkout diff assembly could lose hunks for affected files and render expanded rows empty.
Normalize optional a/ and b/ prefixes in both app and server parsers, and cover the no-prefix header form with regression tests.
* Fix no-prefix diff path parsing
---------
Co-authored-by: Mohamed Boudra <boudra.moha@gmail.com>
Replace toBeDefined/toBeTruthy guards with concrete shape assertions
using toContainEqual(expect.objectContaining(...)) in diff-highlighter
tests, and toMatch(/^script-draft-\d+$/) for the ID check in
project-config-form tests.
Scoped to only `no-unused-vars` and `react/jsx-no-useless-fragment` —
the safe subset of --fix-suggestions. Primary changes:
- Remove unused named imports from statements
- Remove unused default/type imports entirely
- Collapse `<><Single/></>` fragments to `<Single/>`
Verified clean: typecheck + format + lint all green.
- Move syntax highlighting from client to server for proper AST context
- Add highlighted_diff_request/response message types
- Create diff-highlighter and syntax-highlighter utils on server
- Fix TSX dialect to use "ts jsx" for proper TypeScript parsing
- Redesign diff UI: card-style file sections, GitHub Dark theme colors
- Reduce visual clutter: smaller padding, subtle backgrounds
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
