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Extract circuit grid model

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Julian Appel 2026-07-22 20:40:07 +02:00
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docs/circuit-list-editor-architecture.md
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The circuit-list editor is a circuit-first planning workspace for distribution-board design. It is optimized for spreadsheet-like editing while preserving electrical domain boundaries: circuit-level data stays on circuits, and load rows stay inside circuits.
## Frontend Grid Modules
- `circuit-tree-editor.tsx` owns React state, API commands, undo/redo and drag-and-drop orchestration.
- `circuit-grid-model.ts` owns column metadata, circuit/device cell ownership, value projection, formatting, numeric parsing and block sort values.
- `circuit-grid-insertion.ts` resolves insertion intent and insertion sort positions.
- `circuit-grid-safety.ts` resolves delete intent, BMK conflicts and cross-section move confirmation requirements.
The pure grid modules have no React state and are covered by focused unit tests. This keeps circuit/device ownership rules testable while the editor UI is split incrementally.
## Domain Model Overview
- `CircuitSection`