refactor: use the built-in max/min to simplify the code

[cuinix]

Description

use the built-in max/min to simplify the code

Rationale

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Example

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Changes

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[Copilot]

Pull Request Overview

This PR refactors the code in the hexutil and bitutil packages to use built‑in max/min functions, thereby simplifying the logic used for setting boundary indices and byte slice lengths.

• Replaces custom if-conditions with "max" in hexutil JSON and Hex decoding functions.
• Refactors multiple min comparisons in bitutil functions to use the "min" function for cleaner and more concise code.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
common/hexutil/json.go	Replaces manual boundary adjustments with the built‑in max function
common/hexutil/hexutil.go	Uses the built‑in max function to simplify code in big integer decoding
common/bitutil/bitutil.go	Substitutes conditionals for computing the minimum length with the built‑in min function

Comments suppressed due to low confidence (6)

common/hexutil/json.go:182

• Ensure that the 'max' function is available in your Go environment or imported/defined appropriately, as it may not be available in older Go versions.

start := max(end-bigWordNibbles, 0)

common/hexutil/hexutil.go:150

• Verify that the 'max' function is supported or properly imported in this context, ensuring consistency with the intended Go version.

start := max(end-bigWordNibbles, 0)

common/bitutil/bitutil.go:30

• Confirm that the 'min' function is available or imported appropriately, as its absence in certain Go versions could lead to build issues.

n := min(len(b), len(a))

common/bitutil/bitutil.go:49

• Confirm that the 'min' function is available or imported appropriately, as its absence in certain Go versions could lead to build issues.

n := min(len(b), len(a))

common/bitutil/bitutil.go:68

• Ensure that the 'min' function is defined or imported properly to avoid any potential compatibility issues with the Go version in use.

n := min(len(b), len(a))

common/bitutil/bitutil.go:125

• Ensure that the 'min' function is defined or imported properly to avoid any potential compatibility issues with the Go version in use.

n := min(len(b), len(a))

[zzzckck]

thank you