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AGENTS.md

@@ -213,5 +213,6 @@ pnpm clean:dev                # strip demo data for fresh start
 - **No backdrop blur on modals**: `backdrop-filter: none`.
 - **Dialog forms**: `label-position="top"`.
 - **Table action column**: `fixed="right"`, min-width ≥ 260px.
+- **Table column widths**: All `el-table-column` SHALL use `min-width` (not `width`) for proportional scaling when viewport resizes.
 - **Toolbar**: "已选 N 项" first, then primary action button (only one `type="primary"` per toolbar row), no `space-between` push.
 - **Database changes**: always pair with schema SQL in `docs/sql/` and evaluate API/TypeScript type impact.