[Bug] [DolphinScheduler] can not use a k8s cluster url to config DolphinScheduler when dinky & DolphinScheduler is in the same k8s cluster

### Search before asking - [x] I had searched in the [issues](https://github.com/DataLinkDC/dinky/issues?q=is%3Aissue) and found no similar issues. ### What happened <img width="3438" height="944" alt="Image" src="https://github.com/user-attachments/assets/1f245661-0399-4597-af74-e01963d5a613" /> log: ``` [dinky] 2026-01-15 09:41:40.092 WARN 55 --- [ XNIO-1 task-6] org.dinky.init.SystemInit: Get or create DolphinScheduler project failed, please check the config of DolphinScheduler! [dinky] 2026-01-15 09:42:52.566 WARN 55 --- [ XNIO-1 task-6] org.dinky.init.SystemInit: Get or create DolphinScheduler project failed, please check the config of DolphinScheduler! [dinky] 2026-01-15 09:43:07.329 WARN 55 --- [ XNIO-1 task-6] org.dinky.init.SystemInit: Get or create DolphinScheduler project failed, please check the config of DolphinScheduler! [dinky] 2026-01-15 09:45:01.971 WARN 55 --- [ XNIO-1 task-6] org.dinky.init.SystemInit: Get or create DolphinScheduler project failed, please check the config of DolphinScheduler! [dinky] 2026-01-15 09:45:13.678 WARN 55 --- [ XNIO-1 task-6] org.dinky.init.SystemInit: Get or create DolphinScheduler project failed, please check the config of DolphinScheduler! [dinky] 2026-01-15 09:46:58.191 WARN 55 --- [ XNIO-1 task-6] org.dinky.init.SystemInit: Get or create DolphinScheduler project failed, please check the config of DolphinScheduler! ``` ### What you expected to happen we can use cluster url to config ### How to reproduce set a cluster DolphinScheduler url ### Anything else <img width="2456" height="1162" alt="Image" src="https://github.com/user-attachments/assets/23143d09-dd20-46e6-9018-d57b0f6d0f57" /> ### Version 1.2.3 ### Are you willing to submit PR? - [ ] Yes I am willing to submit a PR! ### Code of Conduct - [x] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)