fix credentials getting printed twice

[XN137]

after #1376 a comment shows that non-root credentials could get printed twice:

2025-05-07 23:40:06,767 INFO  [org.apa.pol.ser.qua.con.QuarkusProducers] [,] [,,,] (Quarkus Main Thread) Bootstrapping realm(s) 'POLARIS', if necessary, from root credentials set provided via the environment variable POLARIS_BOOTSTRAP_CREDENTIALS or Java system property polaris.bootstrap.credentials ...
realm: POLARIS root principal credentials: c15135cbf0977e3d:a38976b705f0959e0017e0cef831122e
2025-05-07 23:40:06,819 INFO  [org.apa.pol.ser.qua.con.QuarkusProducers] [,] [,,,] (Quarkus Main Thread) Realm 'POLARIS' automatically bootstrapped, credentials were not present in root credentials set provided via the environment variable POLARIS_BOOTSTRAP_CREDENTIALS or Java system property polaris.bootstrap.credentials, see separate message printed to stdout.
realm: POLARIS root principal credentials: c15135cbf0977e3d:a38976b705f0959e0017e0cef831122e

so we remove all logging/printing from the bootstrapRealms implementations as the outer callers QuarkusProducers.maybeBootstrap and BootstrapCommand.call are already taking care of that.

[XN137]

decided to refactor this for clarity as the realmContext is built from realm right above

[XN137]

wondering about this code:

polaris/quarkus/admin/src/main/java/org/apache/polaris/admintool/BootstrapCommand.java

Lines 115 to 124 in 818cd00

	spec.commandLine().getOut().printf("Realm '%s' successfully bootstrapped.%n", realm);
	if (inputOptions.stdinOptions != null && inputOptions.stdinOptions.printCredentials) {
	String msg =
	String.format(
	"realm: %1s root principal credentials: %2s:%3s",
	result.getKey(),
	result.getValue().getPrincipalSecrets().getPrincipalClientId(),
	result.getValue().getPrincipalSecrets().getMainSecret());
	spec.commandLine().getOut().println(msg);
	}

whether it should also only print credentials that were not taken from the root credentials as is done by QuarkusProducers.maybeBootstrap

[dimas-b]

Thanks for looking into this, @XN137 !

Not printing credentials to STDOUT in metastore implementations makes sense to me (even for the in-memory case).

I also support the idea of handling all initial realm setup in runtime-specific code (QuarkusProducers in this case) and the Admin tool.

[adnanhemani]

Agreed with @dimas-b ! LGTM!

[flyrain]

Thanks @XN137 for the fix. Thanks everyone for the review.