Largest file in the codebase. The review produced a full seam map (line ranges in the nuclear-review workflow output): sidebar drag-and-drop fragmented across 8 non-contiguous locations, TabItemView + exclusive helpers (1,940 lines, one call site), FileDropOverlayView (480 lines), sidebar visuals, window chrome, sidebar resizer, workspace handoff state machine, command palette (tracked separately), fuzzy search engine.
Zero-risk starters: TabItemView.swift, FileDropOverlayView.swift, CommandPaletteSearchEngine.swift are pure moves. TabItemView's internal shape (Equatable + precomputed snapshot params) is a protected typing-latency structure; move the file, do not reshape it.
From the 2026-07-09 nuclear review (10 module reviewers + Codex cross-model pass, disprove-first). Line refs are against the reductive-audit branch (PR #81).
Largest file in the codebase. The review produced a full seam map (line ranges in the nuclear-review workflow output): sidebar drag-and-drop fragmented across 8 non-contiguous locations, TabItemView + exclusive helpers (1,940 lines, one call site), FileDropOverlayView (480 lines), sidebar visuals, window chrome, sidebar resizer, workspace handoff state machine, command palette (tracked separately), fuzzy search engine.
Zero-risk starters: TabItemView.swift, FileDropOverlayView.swift, CommandPaletteSearchEngine.swift are pure moves. TabItemView's internal shape (Equatable + precomputed snapshot params) is a protected typing-latency structure; move the file, do not reshape it.
From the 2026-07-09 nuclear review (10 module reviewers + Codex cross-model pass, disprove-first). Line refs are against the
reductive-auditbranch (PR #81).