fix(contracts): cap batches and add upgrade entrypoints

[bidexbusuyi-eng]

Pull Request

Summary

• Describe the purpose of this PR in one or two sentences.

Checklist

• PR description includes: Closes #[issue_id]
• Tests added or updated
• ABI snapshot updated if contract sources changed (abis/ and COMEBACKHERE-contracts/)
• Screenshots attached if UI changed
• Documentation updated if needed

Notes

• For contract changes, verify ABI snapshot hygiene with make check-abi-snapshots.
• For UI changes, include screenshots or screen recordings to help reviewers.

closes #676
closes #677
closes #678
closes #679

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