What Problem This Solves

Bundled OpenClaw plugins that have obvious brand identities did not declare ClawHub card artwork in openclaw.plugin.json, so ClawHub had no bundled metadata to surface for those cards.

Why This Change Was Made

• Adds optional icon support to the OpenClaw plugin manifest type and normalized manifest registry records.
• Populates 43 obvious bundled plugin manifests with live Simple Icons HTTPS URLs.
• Leaves missing or ambiguous brands unset instead of inventing fallback artwork.
• Documents the icon manifest field as an HTTPS marketplace/catalog card image URL.

User Impact

ClawHub can now show brand icons for the populated bundled plugins once those manifests are published/imported, while unpopulated plugins continue to fall back to the default plugin icon.

Evidence

• pnpm docs:list exited 0 and confirmed docs/plugins/manifest.md as the relevant plugin manifest reference page.
• git diff --check exited 0.
• pnpm format:check -- $(git diff --name-only) exited 0:

All matched files use the correct format.

• node scripts/run-vitest.mjs src/plugins/manifest-registry.test.ts exited 0:

Test Files  1 passed (1)
Tests  72 passed (72)

• pnpm tsgo:core exited 0.
• Live Simple Icons URL proof checked all populated manifest icons:

checked=43
all returned 200 image/svg+xml with SVG content

• $autoreview --mode local exited 0:

autoreview clean: no accepted/actionable findings reported
overall: patch is correct (0.84)