point submodule to forked pds.js

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Changed files
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.gitmodules
··· 1 1 [submodule "vendor/pds.js"] 2 2 path = vendor/pds.js 3 - url = https://tangled.org/chadtmiller.com/pds.js 3 + url = https://tangled.org/zzstoatzz.io/pds.js