feat(git): inline file diffs in commit history rows (#1291)
* chore: add .worktrees/ to gitignore for worktree workflow
* feat(git): add getCommitFileDiff service function
* docs(git): document getCommitFileDiff in module docs
* feat(git): add GET /api/git/commit-file-diff route
* feat(git): add CommitFileDiffResponse type and GitAPI method signature
* feat(git): add getCommitFileDiff HTTP client function
* feat(git): add getCommitFileDiff API facade
* feat(git): add getCommitFileDiff stub to VS Code bridge
* feat(git): add getCommitFileDiff to VS Code gitService and bridge handler
* feat(git): add inline file diff to history commit rows
* fix(git): consolidate CommitFileDiffResponse import to gitApi facade
* fix(git): pass directory through history, validate hash, propagate git errors
* fix(git): use exit code check for VS Code getCommitFileDiff error detection
* fix(git): VS Code rename detection, hash validation parity, retry on error
* fix(git): register scroll container as virtualizer root to fix empty space in history diffs
* fix(git): address greptile review — rename key extraction, directory guard, language detection, isBinary cleanup
* fix(git): harden history inline diffs
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Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>
