feat: remove gasLimit and payable requirement from T1XChainReader

[w-woloszyn]

Removes gasLimits, payable, and introduces upgradability back to T1XChainReader

Description

• Restored owner functionality and simplified cross-chain read events in T1XChainReader by removing the gas limit parameter and ETH checks
• Updated T1ERC7683 to match the new reader interface, eliminating the gas limit argument in verifySettlement
• Adjusted tests to use the streamlined settlement verification call without a gas limit parameter
• Modified settlement scripts accordingly, ensuring they invoke verifySettlement with only destination and orderId

Motivation and Context

Addresses post merge comments from #122

How Has This Been Tested?

unit tests

Types of changes (remove all unchecked types)

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Refactor (code that does not add new functionality nor fixes a bug)

Checklist:

• If my change requires a change to the documentation, I have updated the documentation accordingly, and in either case, have checked this box to attest to my assessment of this requirement with regard to my change.
• If my change requires additions or updates to any deployment scripts to ensure that the protocol is functional (Makefile, Dockerfile, Forge Script, etc.), I have made these changes, and in either case, have checked this box to attest to my assessment of this requirement with regard to my change.
• If my change requires additional test coverage, I have created those tests accordingly, and in either case, have checked this box to attest to my assessment of this requirement with regard to my change.

[evchip]

should have mentioned that we will also need to change Eco's T1Prover contract to work with this new interface. cc @w-woloszyn

[evchip]

looks good, thanks!