fix: preserve pivot column widths after updateOption

[biubiukam]

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• New feature
• Bug fix
• TypeScript definition update
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• Performance optimization
• Enhancement feature
• Refactoring
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🔗 Related issue link

Fixes #5298

💡 Background and solution

After updating a pivot table option, the first-screen scenegraph can recompute column widths only when no column has been manually resized. When manual widths are present, newly affected columns keep stale widths because the width calculation is skipped entirely.

The fix checks whether the columns in the calculation range still include any non-manually-resized column. If so, it reruns the width calculation for that range; the existing resized-column map continues to preserve manual widths. A regression test covers the mixed manual and automatic width case.

📝 Changelog

Language	Changelog
🇺🇸 English	Preserve manually resized pivot table column widths while recalculating other columns after updateOption.
🇨🇳 Chinese	updateOption 后重新计算其他列宽时保留透视表中手动调整的列宽。

☑️ Self-Check before Merge

• Doc is updated/provided or not needed
• Demo is updated/provided or not needed
• TypeScript definition is updated/provided or not needed
• Changelog is provided or not needed

🚀 Summary

Fix pivot table column-width recalculation after updateOption when only some columns have manual widths.

🔍 Walkthrough

1. Detect unresized columns in the first-screen calculation range.
2. Recalculate that range while preserving entries recorded in _widthResizedColMap.
3. Add regression coverage and a patch changelog entry.