xfy b6018ff9c9 test: add t.Parallel() to enable parallel test execution
Add t.Parallel() to 110 test functions across 3 test files:
- internal/loadbalance/balancer_test.go (42 tests)
- internal/config/validate_test.go (21 tests)
- internal/server/status_test.go (47 tests)

This reduces total test time from ~3 minutes to ~34 seconds (5.4x faster).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-09 17:57:23 +08:00
..
2026-04-03 14:07:42 +08:00
2026-04-30 13:42:53 +08:00