fix: handle null plugin badges

[crazywoola]

Summary

Handle marketplace plugin payloads where badges is returned as null instead of an array.

Root Cause

The plugin card used a destructuring default (badges = []), which only covers undefined. When the API returns badges: null, the component still calls .includes() on null and can crash rendering.

Changes

• Normalize payload.badges ?? [] before checking for the partner badge.
• Update marketplace plugin types to allow nullable badges fields.
• Add a regression test for badges: null.

Validation

• pnpm exec vp test app/components/plugins/card/__tests__/index.spec.tsx -t "null badges"
• pnpm exec vp test app/components/plugins/card/__tests__/index.spec.tsx
• pnpm exec tsc --noEmit --pretty false --incremental false

Note: root-level pnpm exec vp test ... failed with Cannot find binary path for command 'node'; rerunning from /Users/banana/Work/dify/web passed. Targeted ESLint on the touched files reports pre-existing lint debt unrelated to this patch.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.87%. Comparing base (57b02e3) to head (b009cdb).

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #36767   +/-   ##
=======================================
  Coverage   85.87%   85.87%           
=======================================
  Files        4538     4538           
  Lines      220780   220781    +1     
  Branches    40681    40681           
=======================================
+ Hits       189588   189595    +7     
+ Misses      27622    27616    -6     
  Partials     3570     3570           

Flag	Coverage Δ
dify-ui	95.57% <ø> (ø)
web	86.46% <100.00%> (+<0.01%)	⬆️

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