Add integration test for host metadata resolution

Port of Go SDK #1546. Verifies that config.resolve() populates
accountId, workspaceId, and discoveryUrl from the host's
/.well-known/databricks-config endpoint.

Co-authored-by: Isaac

Author: hectorcast-db

databricks-sdk-java/src/test/java/com/databricks/sdk/integration/HostMetadataIT.java

@@ -0,0 +1,41 @@
+package com.databricks.sdk.integration;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import com.databricks.sdk.core.DatabricksConfig;
+import com.databricks.sdk.integration.framework.EnvContext;
+import com.databricks.sdk.integration.framework.EnvOrSkip;
+import com.databricks.sdk.integration.framework.EnvTest;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Integration test for host metadata resolution via /.well-known/databricks-config. Port of Go SDK
+ * #1546.
+ */
+@ExtendWith(EnvTest.class)
+@EnvContext("ucws")
+public class HostMetadataIT {
+  private static final Logger LOG = LoggerFactory.getLogger(HostMetadataIT.class);
+
+  @Test
+  void testResolvePopulatesFieldsFromMetadata(@EnvOrSkip("DATABRICKS_HOST") String host) {
+    DatabricksConfig config = new DatabricksConfig().setHost(host);
+    config.resolve();
+
+    LOG.info(
+        "Resolved metadata for {}: accountId={}, workspaceId={}, discoveryUrl={}",
+        host,
+        config.getAccountId(),
+        config.getWorkspaceId(),
+        config.getDiscoveryUrl());
+
+    // After resolve(), host metadata should have been resolved
+    assertNotNull(config.getDiscoveryUrl(), "Expected discoveryUrl to be populated after resolve");
+    assertFalse(config.getDiscoveryUrl().isEmpty(), "Expected non-empty discoveryUrl");
+    assertNotNull(config.getAccountId(), "Expected accountId to be populated after resolve");
+    assertFalse(config.getAccountId().isEmpty(), "Expected non-empty accountId");
+  }
+}