[hamidfzm]

Summary

Adds the official Slides plugin (com.glyph.slides) and documents the plugin API 0.26.0 additions it builds on (hamidfzm/glyph#854, shipped in Glyph 0.26.0).

Closes hamidfzm/glyph#23
Closes hamidfzm/glyph#253

Status: ready to merge. Glyph 0.26.0 is released (v0.26.0 at d5464fa2; the release workflow finished and published the platform packages). Merging here publishes the plugin to the index at once: the release workflow packages official plugins on push to main, writes the real packageUrl and sha256, and regenerates the index. A 0.25.0 app is still offered the plugin but cannot load it until it updates.

Changes

• plugins/com.glyph.slides/:
  • Start Slide Show (View menu and command palette) presents the open document fullscreen inside Glyph. Arrow keys move between slides, Escape ends the show.
  • File > Export > Slides (reveal.js) writes one self-contained HTML deck that opens offline.
  • Every top-level horizontal rule (---) starts a new slide. Slides are wrapped in .markdown-body, so they keep the app's markdown styles and its light or dark theme.
  • reveal.js 6.0.2 (MIT, LICENSE included) ships as package assets read through ctx.assets; there is no build step.
  • sandbox: false: the slide show mounts into a host overlay, which needs the main context.
  • plugin.json carries a placeholder sha256; the release job rewrites packageUrl and the digest when it packages the zip.
  • package.json only marks the folder as ES modules so node --test can import main.js; it is not part of the package.
• index.json, index/, and docs/plugin-catalog.md regenerated with scripts/build-index.mjs (the PR check compares them with a fresh run); they carry the same placeholder until the release job rewrites it.
• docs/api-reference.md: the exporter's document argument, ctx.documents.getRenderedHtml, ctx.ui.openOverlay, how a native menu entry is keyed and when a title is not listed, and exporters in File > Export. Merged with the 0.26.0 docs from docs: plugin API 0.26.0 app state (vault, navigation, Files panel blocks) #13 and docs: plugin API 0.26.0 command shortcuts, workspace writes, and Workspace Settings panels #15: the commands section keeps docs: plugin API 0.26.0 command shortcuts, workspace writes, and Workspace Settings panels #15's shortcut, condition, and menu text, and addWorkspaceSettingsPanel and openOverlay are separate sections.
• docs/recipes.md: the exporter recipe mentions the File > Export entry.

Testing

• node --test: 15 passing, 5 of them for the plugin (slide grouping, deck markup, and the assembled deck staying self-contained).
• node scripts/check-plugins.mjs: registration and manifest agree. A fresh scripts/build-index.mjs leaves the committed index unchanged.
• Against the app as released (hamidfzm/glyph v0.26.0, d5464fa2), with this branch (300b4d1) as the marketplace and glyph-md/plugin-template main (b03c933): the app's plugin contract job passes in full, both the type comparison and ecosystemContract.test.ts, including "accepts every published marketplace entry" for com.glyph.slides.
• The plugin itself loaded through that release's plugin host: its apiVersion is accepted, and it registers the slides.start command with menu: "view" and the slides.revealjs exporter. Every API it calls exists in 0.26.0 under the same name.
• Earlier, in a browser against the app's dev server with the real plugin host modules: the slide show, arrow keys, Escape, and the exported deck in both themes.
• Not yet run inside a built Glyph window: the native menu entries, the fullscreen transition, and math inside a deck.