fix: add .global. to connection string hostname in vector-search-typescript and vector-search-java (#84)

Closes diberry/project-dina#256

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: diberry

ai/vector-search-java/src/main/java/com/azure/documentdb/samples/DiskAnn.java

@@ -94,7 +94,7 @@ private MongoClient createMongoClient() {
             .withMechanismProperty("OIDC_CALLBACK", callback);
 
         var connectionString = new ConnectionString(
-            String.format("mongodb+srv://%s@%s.mongocluster.cosmos.azure.com/?authMechanism=MONGODB-OIDC&tls=true&retrywrites=false&maxIdleTimeMS=120000",
+            String.format("mongodb+srv://%s@%s.global.mongocluster.cosmos.azure.com/?authMechanism=MONGODB-OIDC&tls=true&retrywrites=false&maxIdleTimeMS=120000",
                 managedIdentityPrincipalId, clusterName)
         );
 

ai/vector-search-java/src/main/java/com/azure/documentdb/samples/HNSW.java

@@ -94,7 +94,7 @@ private MongoClient createMongoClient() {
             .withMechanismProperty("OIDC_CALLBACK", callback);
 
         var connectionString = new ConnectionString(
-            String.format("mongodb+srv://%s@%s.mongocluster.cosmos.azure.com/?authMechanism=MONGODB-OIDC&tls=true&retrywrites=false&maxIdleTimeMS=120000",
+            String.format("mongodb+srv://%s@%s.global.mongocluster.cosmos.azure.com/?authMechanism=MONGODB-OIDC&tls=true&retrywrites=false&maxIdleTimeMS=120000",
                 managedIdentityPrincipalId, clusterName)
         );
 

ai/vector-search-java/src/main/java/com/azure/documentdb/samples/IVF.java

@@ -94,7 +94,7 @@ private MongoClient createMongoClient() {
             .withMechanismProperty("OIDC_CALLBACK", callback);
 
         var connectionString = new ConnectionString(
-            String.format("mongodb+srv://%s@%s.mongocluster.cosmos.azure.com/?authMechanism=MONGODB-OIDC&tls=true&retrywrites=false&maxIdleTimeMS=120000",
+            String.format("mongodb+srv://%s@%s.global.mongocluster.cosmos.azure.com/?authMechanism=MONGODB-OIDC&tls=true&retrywrites=false&maxIdleTimeMS=120000",
                 managedIdentityPrincipalId, clusterName)
         );
 

ai/vector-search-typescript/src/utils.ts

@@ -80,7 +80,7 @@ export function getClientsPasswordless(): { aiClient: AzureOpenAI | null; dbClie
     // For DocumentDB with DefaultAzureCredential (uses signed-in user)
     {
         dbClient = new MongoClient(
-            `mongodb+srv://${clusterName}.mongocluster.cosmos.azure.com/`, {
+            `mongodb+srv://${clusterName}.global.mongocluster.cosmos.azure.com/`, {
             connectTimeoutMS: 120000,
             tls: true,
             retryWrites: false,