fix(common): parse numeric string EVM chain IDs

[daixihegu]

Description

This PR updates NetworkUtil.parseEvmChainId to support numeric string chain IDs such as "1" and "42".

Previously, numeric strings were treated like CAIP network IDs and returned NaN. The helper now preserves existing CAIP parsing for values like eip155:1, returns numeric inputs as-is, and parses non-CAIP string chain IDs with Number(...).

Type of change

• Chore (non-breaking change that addresses non-functional tasks, maintenance, or code quality improvements)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Associated Issues

N/A

Showcase (Optional)

N/A - utility-only change.

Checklist

• Code in this PR is covered by automated tests (Unit tests, E2E tests)
• My changes generate no new warnings
• I have reviewed my own code
• I have filled out all required sections
• I have tested my changes on the preview link
• Approver of this PR confirms that the changes are tested on the preview link

[changeset-bot]

🦋 Changeset detected

Latest commit: e2cf88c

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 26 packages

Name	Type
@reown/appkit-common	Patch
@reown/appkit-adapter-bitcoin	Patch
@reown/appkit-adapter-ethers	Patch
@reown/appkit-adapter-ethers5	Patch
@reown/appkit-adapter-solana	Patch
@reown/appkit-adapter-ton	Patch
@reown/appkit-adapter-tron	Patch
@reown/appkit-adapter-wagmi	Patch
@reown/appkit	Patch
@reown/appkit-universal-connector	Patch
@reown/appkit-ui	Patch
@reown/appkit-controllers	Patch
@reown/appkit-utils	Patch
@reown/appkit-scaffold-ui	Patch
@reown/appkit-wallet	Patch
@reown/appkit-siwe	Patch
@reown/appkit-siwx	Patch
@reown/appkit-wallet-button	Patch
@reown/appkit-experimental	Patch
@reown/appkit-pay	Patch
@reown/appkit-cdn	Patch
@reown/appkit-testing	Patch
@reown/appkit-core	Patch
@reown/appkit-polyfills	Patch
@reown/appkit-cli	Patch
@reown/appkit-codemod	Patch

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[daixihegu]

I have read the CTA Document and I hereby sign the CTA