rlp: fix hexToBytes bug

[ScottyPoi]

Fix for bug pointed out in issue #4275

Adds missing unit test that would have caught bug.

[Copilot]

Pull request overview

Fixes an hexToBytes parsing bug for 0x-prefixed hex strings (as reported in issue #4275) and adds coverage to prevent regressions.

Changes:

• Correct hexToBytes to strip the 0x prefix via hex.slice(2) (instead of incorrectly keeping only the prefix).
• Add unit tests validating decoding for both 0x-prefixed and non-prefixed hex strings.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
packages/rlp/src/index.ts	Fixes hexToBytes handling of 0x-prefixed strings.
packages/rlp/test/dataTypes.spec.ts	Adds regression tests for hexToBytes with and without 0x prefix.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 73.20%. Comparing base (b3ea7a4) to head (77cbe48).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

Flag	Coverage Δ
block	87.33% <ø> (ø)
blockchain	88.82% <ø> (ø)
common	93.44% <ø> (ø)
evm	61.22% <ø> (ø)
mpt	89.64% <ø> (ø)
statemanager	78.04% <ø> (ø)
static	91.35% <100.00%> (ø)
tx	88.01% <ø> (ø)
util	80.83% <ø> (ø)
vm	55.45% <ø> (ø)

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[github-actions]

📦 Bundle Size Analysis

Package	Size (min+gzip)	Δ
binarytree	17.5 KB	🟢 -0.0 KB (-0.05%)
block	43.6 KB	⚪ ±0%
blockchain	69.8 KB	⚪ ±0%
common	25.4 KB	⚪ ±0%
devp2p	17.7 KB	🟢 -0.0 KB (-0.02%)
e2store	87.2 KB	⚪ ±0%
ethash	61.6 KB	🟢 -0.0 KB (-0.01%)
evm	62.5 KB	⚪ ±0%
genesis	272.2 KB	⚪ ±0%
mpt	21.9 KB	🟢 -0.0 KB (-0.03%)
rlp	1.7 KB	🟢 -0.0 KB (-0.06%)
statemanager	41.2 KB	🟢 -0.0 KB (-0.02%)
testdata	43.8 KB	⚪ ±0%
tx	20.8 KB	⚪ ±0%
util	13.2 KB	🟢 -0.0 KB (-0.01%)
vm	154.6 KB	⚪ ±0%
wallet	15.0 KB	⚪ ±0%

Values are minified+gzipped bundles of each package entry. Workspace deps are bundled; external deps are excluded.

_{Generated by bundle-size workflow}