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/embedded-captions.md

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+# Route: embedded-captions
+
+- **Input:** Existing talking-head footage to caption. It is an actual media file, not a URL or creative brief.
+- **Output:** The same footage, untouched, with a caption layer and selected caption identity. The subject may occlude embedded captions. Any length.
+- **Triggers:** "add captions", "add subtitles", "captions behind the subject", "cinematic captions for my clip".
+
+## Interview
+
+- **Must-haves:** which clip (the input file).
+- **Deferred (announce):** the caption **identity** pick — its Step 0 probes the clip first, then shortlists 2–3 identities from the catalog and recommends one. Say that's coming.
+- **Run-shape:** neither — the footage is untouched; there is no storyboard to review.