Greptile Summary

This PR adds visual state indicators (◌ ✦ ✕ ➜) to the sidebar file list, letting users instantly distinguish untracked, new, deleted, and renamed files by icon and color. The change threads a new isUntracked boolean through the full stack — from DiffFile type → git loader → FileListEntry → FileListItem — and adds four matching color tokens to all four themes.

Key changes:

• DiffFile.isUntracked?: boolean added as an optional field; all non-git loaders continue to work without change.
• buildUntrackedDiffFile explicitly passes true; all other buildDiffFile call sites are unaffected (the parameter is optional).
• FileListEntry normalises isUntracked to a non-optional boolean via ?? false, keeping icon rendering free of null checks.
• getFileStateIcon checks isUntracked first, then falls back to changeType, correctly giving untracked files the ◌ icon even though the underlying metadata.type is \"new\".
• Layout arithmetic in FileListItem is adjusted correctly: iconWidth = icon ? 2 : 0 accounts for 1 Unicode char + 1 trailing space, and nameWidth is reduced by iconWidth accordingly.
• All four themes (graphite, midnight, paper, ember) receive consistent new color tokens that complement their existing badge palette.

Confidence Score: 5/5

Safe to merge — no correctness, data-integrity, or layout issues found.

All five changed files are clean with no P0 or P1 issues. The data flow is end-to-end consistent, the layout math is verified, all themes are updated, and the isUntracked / changeType priority ordering in getFileStateIcon is correct.

No files require special attention.

Important Files Changed

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[Git loader\nsrc/core/loaders.ts] -->|buildUntrackedDiffFile\nisUntracked=true| B[DiffFile\nsrc/core/types.ts]
    A -->|buildDiffFile\nisUntracked=undefined| B
    B -->|buildSidebarEntries\nchangeType + isUntracked ?? false| C[FileListEntry\nsrc/ui/lib/files.ts]
    C -->|entry prop| D[FileListItem\nsrc/ui/components/panes/FileListItem.tsx]
    D -->|getFileStateIcon| E{isUntracked?}
    E -->|yes| F["◌ blue — untracked"]
    E -->|no, check changeType| G{changeType}
    G -->|new| H["✦ green — new"]
    G -->|deleted| I["✕ red — deleted"]
    G -->|rename-pure / rename-changed| J["➜ amber — renamed"]
    G -->|change / default| K["no icon"]
    L[AppTheme\nsrc/ui/themes.ts] -->|fileNew / fileDeleted\nfileRenamed / fileUntracked| D

_{Reviews (1): Last reviewed commit: "feat: add file state indicators to sideb..." | Re-trigger Greptile}