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Update x402 to v2 (#898)

* update to x402 v2

* improve x402 requests

* fix svm signer

* add payai

* fix unit tests

* add changelog and update readme
P
phdargen committed
16fb4a1c4674787ac8442efc88e0830573f3208d
Parent: 9f3c578
Committed by GitHub <noreply@github.com> on 12/19/2025, 10:00:00 PM