docs: unlist the Send-to guide from the docs nav (tool-served, not web-searched)

[somanshreddy]

What

Unlist the "Send to HyperFrames" authoring guide (guides/claude-design-send-to-hyperframes) from the docs navigation in docs.json, making it an unlisted orphan file (like the sibling claude-design-hyperframes.md already is). The guide file itself is unchanged.

Why

That guide is an internal authoring contract for the Claude Design "Send to HyperFrames" import flow, not general HyperFrames product docs. It's now delivered exclusively by the get-send-to-hyperframes-guide MCP tool, which fetches the raw file server-side (raw.githubusercontent.com/heygen-com/hyperframes/main/docs/guides/claude-design-send-to-hyperframes.md) and returns it as tool-result data — independent of the docs site. The llms.txt / web_search discovery path it was published for is no longer used (the import tool tells the agent the guide comes from the tool, "no fetch/search needed"). So the nav entry only surfaces implementation detail in the public product docs without serving the flow.

How

Remove the one "guides/claude-design-send-to-hyperframes" line from docs/docs.json. This drops it from the sidebar and the auto-generated llms.txt, while:

• keeping the .md file at its path — the MCP tool's raw fetch URL depends on it and is unchanged, so nothing in the live flow moves;
• keeping the redirect note in claude-design-hyperframes.md (it points at the raw GitHub URL, not the docs page, so it still resolves).

Orphan guide files build cleanly in this repo — claude-design-hyperframes.md is already an orphan (present but absent from docs.json), and no internal doc links reference the page.

Test plan

• docs.json validated as well-formed JSON; guide .md confirmed still present; grep confirms no internal doc links to the page.
• Manual testing performed
• Documentation updated (if applicable)

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[miguel-heygen]

Approved exact head 24bc93df12f78db5600b411991d489afb9fe68e9. This is the correct minimal separation: removing only the docs-nav entry unlists the internal Send-to contract (and its generated discovery surface) while preserving the raw GitHub file path consumed by the MCP tool. Both raw-link redirects remain valid, the existing semantic contract test still reads the unchanged file, and the sibling orphan guide establishes that unlisted files are supported. Exact-head docs validation/CodeQL/checks are terminal green; no unresolved review threads.