Implement W3C XQuery Update Facility 3.0 alongside deprecated legacy syntax#6111

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joewiz wants to merge 7 commits intoeXist-db:developfrom

joewiz:feature/w3c-xquery-update-3.0-v2

Commits on Mar 14, 2026

[feature] Register fn:put() in FnModule for W3C XQUF

joewiz
and
claude
committed

Commits on Mar 30, 2026

[feature] Implement fn:put persistent storage in XQUF PUL

joewiz
and
claude
committed