StillHammer 1d1d42b8d9 Add PowerPoint generation improvements for Alimentari Piccolo ...

- Fix html2pptx Windows file path handling (file:/// URLs)
- Fix Italian flag diagonal (remove CSS rotation, use positioned rectangles)
- Add Chinese character background watermark (意)
- Add geometric pattern attempt (Art Deco style)
- Fix validation errors (text positioning, margins)
- Add backup slides directory
- Add build scripts and image resources

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

2025-12-03 11:21:54 +08:00

291 KiB

1702x1276px

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