basalt-26.3.2-rc-20260908: server/application_api: TestAdminAPIDatabaseDetails failed

server/application_api.TestAdminAPIDatabaseDetails [failed](https://mesolite.cluster.engflow.com/invocations/default/bb2803f0-20da-4132-9bf9-2818a577ee69?testReportRun=3&testReportShard=7&testReportAttempt=1#targets-Ly9wa2cvc2VydmVyL2FwcGxpY2F0aW9uX2FwaTphcHBsaWNhdGlvbl9hcGlfdGVzdA==) on basalt-26.3.2-rc-20260908 @ [807558e5e81666af257c811e925e4cae570abc28](https://github.com/cockroachdb/cockroach/commits/807558e5e81666af257c811e925e4cae570abc28):

```
=== RUN TestAdminAPIDatabaseDetails
test_log_scope.go:172: test logs captured to: outputs.zip/logTestAdminAPIDatabaseDetails1643072967
test_log_scope.go:82: use -show-logs to present logs inline
test_server_shim.go:168: automatically injected a shared process virtual cluster under test; see comment at top of test_server_shim.go for details.
test_server_shim.go:639: DRPC is enabled (via testserver factory defaults)
schema_inspection_test.go:469:
Error Trace: pkg/server/application_api/schema_inspection_test.go:469
pkg/testutils/soon.go:76
pkg/util/retry/retry.go:393
pkg/testutils/soon.go:82
pkg/testutils/soon.go:59
pkg/testutils/soon.go:38
pkg/server/application_api/schema_inspection_test.go:456
Error: "0" is not positive
Test: TestAdminAPIDatabaseDetails
Messages: ApproximateDiskBytes
schema_inspection_test.go:473: -- test log scope end --
test logs left over in: outputs.zip/logTestAdminAPIDatabaseDetails1643072967
--- FAIL: TestAdminAPIDatabaseDetails (157.21s)
```

Parameters:
- attempt=1
- race=true
- run=3
- shard=7
Help

See also: [How To Investigate a Go Test Failure \(internal\)](https://cockroachlabs.atlassian.net/l/c/HgfXfJgM)

/cc @cockroachlabs/obs-prs

[This test on roachdash](https://roachdash.crdb.dev/?filter=status:open%20t:.*TestAdminAPIDatabaseDetails.*&sort=title+created&display=lastcommented+project) | [Improve this report!](https://github.com/cockroachdb/cockroach/tree/master/pkg/cmd/bazci/githubpost/issues)

Start with TestAdminAPIDatabaseDetails in pkg/server/application_api/schema_inspection_test.go, especially the assertion around lines 456-469, and inspect the linked test report and captured logs. Reproduce the failure with the race-enabled test configuration. Done means the ApproximateDiskBytes check no longer reports zero and the test passes reliably.

Written by the indexing model from the issue text.