⚡️ perf(data-grid): memoize CSS模板与样式变量，优化render热路径

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- P0：gridCssText useMemo化，依赖[themeStyles, gridId, tableBodyBottomPadding]
- P1：80+行主题变量收敛到themeStyles useMemo，依赖[darkMode, opacity, blur]
- P2：CELL_ELLIPSIS_STYLE/VIRTUAL_CELL_WRAPPER_STYLE提升为模块级常量
- P5：合并getBoundingClientRect为单次调用，减少强制重排
- P6：useRef替代displayColumnNames依赖，切断normalizeGridFilterConditions级联

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Syngnat

2026-03-18 17:20:53 +08:00

parent 1eb2f6dffe

commit 8bdc6e8086

1 changed files with 534 additions and 501 deletions

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frontend/src/components/DataGrid.tsx

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