Only strip dataSuffix hex prefix

[samsamtrum]

Summary

Only strips a leading 0x from dataSuffix in writeContract.

Why

writeContract appends dataSuffix to encoded calldata, but currently uses dataSuffix.replace("0x", ""). That removes the first 0x anywhere in the suffix, not necessarily the hex prefix.

For example, a suffix like 12340x5678 would be changed to 12345678 even though it does not have a leading hex prefix.

Change

• Uses replace(/^0x/, "") so only an actual prefix is stripped.
• Adds regression coverage for preserving an internal 0x substring.

[changeset-bot]

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Latest commit: 5aaa4bb

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