refactor: use v2 delegated routing for end user operations

[sammccord]

Description

Refactors the TypeScript SDK's end user delegated signing operations to use v2 delegated routing.

Key changes:

• Remove projectId requirement: Delegated signing/sending operations no longer require a separate projectId parameter. Removed from CdpClientOptions, EndUserClient constructor, ToEndUserAccountOptions, and all API call sites.
• Rename CDPEndUserClient to EndUserClient: Simplified class naming for consistency.
• Update OpenAPI spec and regenerate client: Updated openapi.yaml and regenerated TypeScript OpenAPI client code. The embedded-wallets module replaces the old embedded-wallets-delegated-signing / embedded-wallets-core-functionality modules.
• Remove stale tests: Removed endUser.test.ts and cdpApiClient.test.ts that were tied to the old routing.
• Add changeset: Minor bump for @coinbase/cdp-sdk.

Tests

The delegated signing operations (signEvmHash, signEvmTransaction, signEvmMessage, signEvmTypedData, sendEvmTransaction, sendEvmAsset, sendUserOperation, createEvmEip7702Delegation, revokeDelegation) were updated to use the v2 API routes which no longer require projectId as a path parameter.

Method: signEvmHash
Network: Base Sepolia
Setup: End user account with delegated signing enabled

Output:
Signature: 0x...

Checklist

• Updated the typescript README if relevant
• Updated the python README if relevant
• Added a changelog entry
• Added e2e tests if introducing new functionality

[cb-heimdall]

✅ Heimdall Review Status

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Reviews	✅ 2/1	Denominator calculation Show calculation 1 if user is bot 0 1 if user is external 0 2 if repo is sensitive 0 From .codeflow.yml 1 Additional review requirements Show calculation Max 0 0 From CODEOWNERS 0 Global minimum 0 Max 1 1 1 if commit is unverified 0 Sum 1

[github-actions]

⚠️ Generated Client Files Have Been Modified

This pull request contains manual changes to generated client files. These files are automatically generated from the OpenAPI specification and should not be edited directly.

Please check the workflow logs for details on which files were modified.

To fix this issue:

1. Revert any manual changes to files in:
   • typescript/src/openapi-client/generated/
   • python/cdp/openapi_client/
   • go/openapi/
   • java/src/main/java/com/coinbase/cdp/openapi/
2. If you need to change the generated code, update the OpenAPI spec (openapi.yaml) instead
3. Run the generation commands locally to update the generated files

_{This comment will be automatically removed once the issue is resolved.}

[cb-heimdall]

Review Error for sddioulde @ 2026-04-16 22:02:08 UTC
User failed mfa authentication, either user does not exist or public email is not set on your github profile. \ see go/mfa-help