Liu An 5825a24d26
Test: Refactor test concurrency handling and add SDK chunk management tests (#8112)
### What problem does this PR solve?

- Improve concurrent test cases by using as_completed for better
reliability
- Rename variables for clarity (chunk_num -> count)
- Add new SDK API test suite for chunk management operations
- Update HTTP API tests with consistent concurrency patterns

### Type of change

- [x] Add test cases
- [x] Refactoring
2025-06-06 19:43:14 +08:00
..