Add CTYun DDoS Cloud service

[632661265flynn-dotcom]

Summary

• add CTYun DDoS High Protection (Edge Cloud) read-only service package
• implement CTYun EOP AK/SK request signing and read-only API routing
• register ctyun-ddoscloud in the tentacles package dispatcher

Closes #277

Tests

• npm run validate -- --service-dir ctyun__ddoscloud
• npm test -- --service-dir ctyun__ddoscloud
• npm run import:check -- --octobus /Users/flynn/Desktop/aicoding/OctoBus-main/bin/octobus
• npm run pack:check

Live verification evidence (redacted)

Secrets and signatures are masked. Request path, method, headers, status code, and response structure are kept visible.

联调证据：CTYun DDoS Cloud DomainQuery 跑通

Request

GET https://ddoscloud-global.ctapi.ctyun.cn/ctapi/v2/domain/query
Content-Type: application/json
ctyun-eop-request-id: 63e8898a-1f9b-4e77-95f6-2ca80885c2bd
Eop-date: 20260626T030804Z
Eop-Authorization: a7434d3e Headers=ctyun-eop-request-id;eop-date Signature=**

Response HTTP/1.1 200

{
"returnObj": {
"result": [],
"total": 0,
"total_count": 0,
"page": 1,
"page_count": 0,
"page_size": 50
},
"message": "正确返回",
"statusCode": 100000
}

联调证据：CTYun DDoS Cloud CertList 跑通

Request

GET https://ddoscloud-global.ctapi.ctyun.cn/ctapi/v1/cert/list
Content-Type: application/json
ctyun-eop-request-id: 7cccea23-f5fb-47ca-bd87-e34caff8df9b
Eop-date: 20260626T030804Z
Eop-Authorization: a7434d3e Headers=ctyun-eop-request-id;eop-date Signature=**

Response HTTP/1.1 200

{
"returnObj": {
"result": [],
"per_page": 1000,
"total_records": 0,
"total_page": 0,
"page": 1
},
"message": "正确返回",
"statusCode": 100000
}