* feat: presentation (.pptx) export (#1137)
- Implement OpenXML PresentationML (.pptx) generator in crates/export/src/pptx.rs:
- Generate [Content_Types].xml, _rels/.rels, core properties, presentation.xml
- Build slide master, blank slide layout, and DrawingML theme
- Render slides per page: largest text block as title shape, remaining paragraphs as body text box with font size, bold, italic, and color formatting
- Embed images with proper DrawingML picture shapes and relationships
- Generate DrawingML table shapes with column grid and span merging
- Wire OfficeFormat::Pptx into crates/engine/src/compare.rs and export_office
- Register export.pptx command and mark Presentation (.pptx) Ready in catalog
- Support pptx in automation doc_export_office tool
- Wire export.pptx into UI commands and file save dialog
- Add unit and integration tests across crates/export, engine, automation, and ui-egui
- Update create.export-pptx parity feature evidence and docs
* pptx export: saturating slide positions, matching cell-border tags, theme ea/cs fonts, package test
- Heights and the running vertical position use clamped/saturating arithmetic, so a hostile
text size or image rectangle (1e300, NaN, inf) can't overflow i64; the item loop uses get().
- The table cells' a:lnR and a:lnT borders were closed with </a:lnL>, which made every slide
with a table malformed XML; they now close with their own tags.
- The theme's major/minor fonts carry the schema-required a:ea and a:cs children.
- New test walks the produced zip entry by entry (sizes, inflation, central directory), checks
every XML part's tags balance, the required parts, content-type overrides, relationship
targets and that no placeholders are used; a hostile-sizes test covers the overflow.
- Test literals gain main's Block/Image rotation and size fields.
- Parity notes say what is still unverified.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: KrzysztofC <krzysztofc@localhost-live.lan>
Co-authored-by: Brandon Thomas <echelon@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
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