fix(the-workshop): add signals-dashboard preview.png + logo so the canvas validates

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The signals-dashboard extension was missing its required screenshot asset, so it failed awesome-copilot's validateExtensionManifest (logo must equal "assets/preview.png" and the file must exist) and never materialized -- meaning the Cairn canvas would not ship to the GHCP app. Adds the 1024x1024 preview.png and the convention logo field. Validated locally: node eng/validate-plugins.mjs -> extension signals-dashboard is valid; all 70 plugins + 19 extensions pass.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 26faf13e-639c-4a21-ac05-c0dc2bff7c62

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Jenny Ferries

2026-07-18 19:21:31 -07:00

parent 9fc4032293

commit 0f62533f11

2 changed files with 1 additions and 0 deletions

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extensions/signals-dashboard/assets/preview.png

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