Fix: remove signerMeta from the advanced permissions starter

[mj-kiwi]

What?

• remove the signerMeta from the advanced permissions starter

Why?

• no signerMeta is return from the grant permission method

How?

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Note

Low Risk
Low risk template fix that only changes how delegation parameters are read/validated; behavior should be unchanged aside from no longer failing on missing signerMeta.

Overview
Updates the advanced permissions starter’s RedeemPermissionButton to stop reading delegation data from permission.signerMeta and instead use permission.context and permission.delegationManager directly.

This removes the early error path for missing signerMeta and keeps validation focused on the required context/delegationManager fields before sending the delegated user operation.

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