feat(connector): support Aliyun DM regions

[charIeszhao]

Summary

• Add regionId configuration for the Aliyun Direct Mail connector.
• Route SingleSendMail requests to the endpoint for the configured Direct Mail region.
• Keep existing configurations backward compatible by defaulting to cn-hangzhou.

Root cause

Aliyun Direct Mail sender addresses are region-scoped. The connector previously always called the Hangzhou endpoint, so sender addresses created in regions such as Singapore could not be found.

Testing

Unit tests

[github-actions]

COMPARE TO master

Total Size Diff 📈 +3.87 KB

Diff by File

Name	Diff
.changeset/support-aliyun-dm-region.md	📈 +108 Bytes
packages/connectors/connector-aliyun-dm/README.md	📈 +319 Bytes
packages/connectors/connector-aliyun-dm/src/constant.ts	📈 +1.28 KB
packages/connectors/connector-aliyun-dm/src/index.test.ts	📈 +605 Bytes
packages/connectors/connector-aliyun-dm/src/index.ts	📈 +110 Bytes
packages/connectors/connector-aliyun-dm/src/mock.ts	📈 +9 Bytes
packages/connectors/connector-aliyun-dm/src/single-send-mail.test.ts	📈 +858 Bytes
packages/connectors/connector-aliyun-dm/src/single-send-mail.ts	📈 +120 Bytes
packages/connectors/connector-aliyun-dm/src/types.test.ts	📈 +468 Bytes
packages/connectors/connector-aliyun-dm/src/types.ts	📈 +48 Bytes

[Copilot]

Pull request overview

Adds regional Aliyun Direct Mail support so the connector can send through the endpoint matching the configured sender-address region while preserving the Hangzhou default.

Changes:

• Adds regionId validation, config form option, region-to-endpoint mapping, and default cn-hangzhou.
• Routes SingleSendMail requests to the selected regional endpoint and includes RegionId in the signed request payload.
• Adds unit tests, README documentation, and a changeset for the connector update.

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
packages/connectors/connector-aliyun-dm/src/constant.ts	Defines supported regions, endpoints, default region, and config form item.
packages/connectors/connector-aliyun-dm/src/types.ts	Adds regionId config validation and narrows request RegionId.
packages/connectors/connector-aliyun-dm/src/single-send-mail.ts	Selects endpoint by region and sends RegionId in request parameters.
packages/connectors/connector-aliyun-dm/src/index.ts	Reads configured region and passes it to mail sending.
packages/connectors/connector-aliyun-dm/src/mock.ts	Updates mock typing for the narrowed region union.
packages/connectors/connector-aliyun-dm/src/*.test.ts	Adds validation and request-routing coverage for region support.
packages/connectors/connector-aliyun-dm/README.md	Documents the new optional regionId setting.
.changeset/support-aliyun-dm-region.md	Adds a minor release changeset.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.