Integrate Fortune Sheet spreadsheet editor in StepAnsicht

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Install @fortune-sheet/react (MIT, v1.0.4) as Excel-like spreadsheet
component. New SpreadsheetView.tsx converts unified grid data to
Fortune Sheet format (celldata, merge config, column/row sizes).

StepAnsicht now has Spreadsheet/Grid toggle:
- Spreadsheet mode: full Fortune Sheet with toolbar (bold, italic,
  color, borders, merge cells, text wrap, undo/redo)
- Grid mode: existing GridTable for quick editing

Box-origin cells get light tinted background in spreadsheet view.
Colspan cells converted to Fortune Sheet merge format.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

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Benjamin Admin

2026-04-15 00:08:03 +02:00

parent c1a903537b

commit b42f394833

4 changed files with 1731 additions and 226 deletions

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