[leoafarias]

Intent

Make the playground one flow: generate a deck, present it, and export it. The saved-deck library (save to a remembered folder, list, reopen) is gone. It needed a set of ownership rules because a saved deck and a freshly generated deck could share the app at the same time. With one deck per run, those rules have nothing left to coordinate.

Export deck saves a zip through the platform save dialog:

slides.md   generated Markdown, images referenced as assets/<file>
assets/     generated artwork

The unzipped folder is a standard SuperDeck project. The export carries the Markdown and artwork, not the generated theme.

Commits

1. fix: MemoryDeckLoader.reload re-emits the last result. SuperDeck's retry screen calls reload(), which used to do nothing, so a waiting session stayed loading. This fix comes from fix(pdf): release export captures; record the architecture audit #121.

2. feat: DeckExport builds the project files and the zip, rewriting each bare asset key to assets/<key>. A follow-up commit names the export after the deck topic, as the old save dialog did, and encodes the zip off the UI isolate.

3. refactor!: the library is replaced with export. Removed:

   • the saved-decks page and /decks route
   • DeckLibraryController, MacOsDeckLibrary and its .deck.json manifest
   • the saved-deck artwork binding
   • security-scoped bookmarks in both Dart and Swift, with their entitlement and Xcode project entries
   • Result
   • DeckDocumentStore, whose only reader was the library save

   Generated artwork now resolves from the in-memory store. file_saver is registered as a macOS plugin.

4. docs: the playground README and AGENTS.md describe export.

Impacted packages

playground only.

Commands run

• fvm dart run melos bootstrap and melos run build_runner:build --no-select: no generated-file drift
• fvm dart analyze --fatal-infos in all 7 packages and playground test_live: no issues
• fvm flutter test in playground: 371 passing. New tests cover export building, the zip round trip, and the Wizard export flow: success, cancel, failure, and a new run clearing the notice. The library tests are removed.
• plutil -lint on project.pbxproj and both entitlements files, and xcrun swiftc -parse on MainFlutterWindow.swift: clean

macOS plugins are integrated through Swift Package Manager (FlutterGeneratedPluginSwiftPackage), and file_saver 0.4.0 ships a Package.swift, so Podfile.lock does not change.

Not run: a macOS app build. Both macOS runners target 10.15, which current Xcode rejects. Please run the app once to check the save dialog after the deployment target is raised.

[github-actions]

Visit the preview URL for this PR (updated for commit e2152d4):

https://superdeck-dev--pr124-refactor-playground-csi9r3rm.web.app

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