* feat: enhance WorkAccessToken to include AgentID for improved token management
- Added AgentID field to WorkAccessToken struct.
- Updated NewWorkAccessToken function to accept AgentID as a parameter.
- Modified access token cache key to incorporate AgentID, ensuring unique cache entries per agent.
This change improves the handling of access tokens in a multi-agent environment.
* refactor: enhance WorkAccessToken to improve cache key handling
- Updated the AgentID field in WorkAccessToken struct to clarify its optional nature for distinguishing applications.
- Modified the access token cache key construction to support both new and legacy formats based on the presence of AgentID.
- Added comments for better understanding of the cache key logic and its compatibility with historical versions.
This change improves the flexibility and clarity of access token management in multi-agent scenarios.
* feat(work): add JsSdk method for JavaScript SDK integration
- Introduced a new JsSdk method in the Work struct to facilitate the creation of a Js instance.
- This addition enhances the functionality of the Work module by enabling JavaScript SDK support.
This change improves the integration capabilities for developers working with the WeChat Work API.
* fix gofmt
