Draft PPTX import spec

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Adds docs/PPTX_IMPORT_FEATURE.md as the canonical plan for the next
big arc: a phased editable .pptx importer that lands PowerPoint decks
as editable Artstr deck JSON.

Key decisions baked in:

- Images and unsupported objects (charts / SmartArt / tables / video)
  import as placeholder image layers pointing at a hardcoded URL
  (postimg.cc for now). Original PowerPoint media filenames carry
  over into the layer name so the user can correlate placeholders
  with their source deck.
- fflate (~10 KB) vendored as src/vendor/fflate.min.js. JSZip is too
  heavy for the single-file ethos.
- Importer code lives in src/pptx-importer.js as an IIFE that
  exposes window.ArtstrPptxImporter. The Import PPTX button
  dynamically injects both scripts on first click, so the main
  index.html bundle does not grow for the 90 % of users who never
  import a PPTX.
- Notes folded into Phase 2 alongside text (single extra relationship
  lookup, Presenter Mode already renders slide.notes).
- No Blossom / NIP-96 prereq, no base64 bloat, no publish-size guard.
  Imported decks are normal Artstr deck payloads with remote URLs.
- Import-only for this arc. PPTX export (Artstr -> .pptx) is a
  separate later arc with its own complexity.

TODO.md gets a Drafted-but-unbuilt entry pointing at the new spec.

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thePR0M3TH3AN committed 2026-05-29 11:21:54 -04:00

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