Add HyperFrames skills

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011h6NB8JQtfPc6eRCefEzBB

.agents/skills/hyperframes/references/routes/slideshow.md

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+# Route: slideshow
+
+- **Input:** A brief, outline, or existing page to author as a presentation, pitch deck, or interactive deck. If "slides", "deck", or "convert this page" is ambiguous, confirm that the user wants a HyperFrames slideshow before authoring.
+- **Output:** A runnable HyperFrames composition plus the JSON island used by `SlideshowController`: discrete slides, fragment reveals, branching, hotspots, presenter mode, and speaker notes. The deliverable is a navigable deck, not an MP4.
+- **Triggers:** "make a pitch deck", "interactive presentation", "convert this page into slides", "slideshow with presenter mode".
+
+## Interview
+
+- The one question is the routing confirmation itself — "do you want this as a HyperFrames slideshow?" — asked during triage (it survives every mode: wrong routing is a quality problem). The deck contract owns everything after.
+- **Run-shape:** neither — the deliverable is a navigable deck, not a rendered video.
+- **Front-door capability offer:** skip it. After route confirmation, the deck workflow owns all remaining choices.