[Internal 3.47.0: Refactors some APIs to be PREVIEWonly (#5000)

# Pull Request Template

## Description

Changes the following APIs to be preview instead of public for the next
release:


![image](https://github.com/user-attachments/assets/55566d56-da23-492e-a97a-9048da66b93a)



## Type of change

Please delete options that are not relevant.

- [] Bug fix (non-breaking change which fixes an issue)
- [] New feature (non-breaking change which adds functionality)
- [] Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [] This change requires a documentation update

## Closing issues

To automatically close an issue: closes #IssueNumber

Author: NaluTripician

Microsoft.Azure.Cosmos/src/CosmosClientTelemetryOptions.cs

@@ -60,16 +60,31 @@ public class CosmosClientTelemetryOptions
         /// If false, no metrics related to the client will be gathered or reported.
         /// <remarks>Metrics data can be published to a monitoring system like Prometheus or Azure Monitor, depending on the configured metrics provider.</remarks>
         /// </summary>
-        public bool IsClientMetricsEnabled { get; set; }
+#if PREVIEW
+        public
+#else
+        internal
+#endif
+        bool IsClientMetricsEnabled { get; set; }
 
         /// <summary>
         /// Gets or sets the configuration for operation-level metrics.
         /// </summary>
-        public OperationMetricsOptions OperationMetricsOptions { get; set; }
+#if PREVIEW
+        public
+#else
+        internal
+#endif
+        OperationMetricsOptions OperationMetricsOptions { get; set; }
 
         /// <summary>
         /// Gets or sets the configuration for network-level metrics.
         /// </summary>
-        public NetworkMetricsOptions NetworkMetricsOptions { get; set; }
+#if PREVIEW
+        public
+#else
+        internal
+#endif
+        NetworkMetricsOptions NetworkMetricsOptions { get; set; }
     }
 }

Microsoft.Azure.Cosmos/src/NetworkMetricsOptions.cs

@@ -9,7 +9,12 @@ namespace Microsoft.Azure.Cosmos
     /// <summary>
     /// Represents the configuration options for collecting metrics related to Cosmos DB network operations.
     /// </summary>
-    public class NetworkMetricsOptions
+#if PREVIEW
+    public
+#else
+    internal
+#endif
+    class NetworkMetricsOptions
     {
         /// <summary>
         /// <para>

Microsoft.Azure.Cosmos/src/OperationMetricsOptions.cs

@@ -9,7 +9,12 @@ namespace Microsoft.Azure.Cosmos
     /// <summary>
     /// Represents the configuration options for collecting metrics related to Cosmos DB operations.
     /// </summary>
-    public class OperationMetricsOptions
+#if PREVIEW
+    public
+#else
+    internal
+#endif
+    class OperationMetricsOptions
     {
         /// <summary>
         /// <para>

Microsoft.Azure.Cosmos/src/RequestOptions/RequestOptions.cs

@@ -211,11 +211,21 @@ internal static void SetSessionToken(RequestMessage request, string sessionToken
         /// <summary>
         /// Gets or sets the configuration for operation-level metrics.
         /// </summary>
-        public OperationMetricsOptions OperationMetricsOptions { get; set; } = null;
+#if PREVIEW
+        public
+#else
+        internal
+#endif
+        OperationMetricsOptions OperationMetricsOptions { get; set; } = null;
 
         /// <summary>
         /// Gets or sets the configuration for network-level metrics.
         /// </summary>
-        public NetworkMetricsOptions NetworkMetricsOptions { get; set; } = null;
+#if PREVIEW
+        public
+#else
+        internal
+#endif
+        NetworkMetricsOptions NetworkMetricsOptions { get; set; } = null;
     }
 }

Microsoft.Azure.Cosmos/src/Telemetry/OpenTelemetry/CosmosDbClientMetrics.cs

@@ -9,7 +9,12 @@ namespace Microsoft.Azure.Cosmos
     /// These metrics are useful for tracking various aspects of Cosmos DB client operations and compliant with Open Telemetry Semantic Conventions 
     /// It defines standardized names, units, descriptions, and histogram buckets for measuring and monitoring performance through OpenTelemetry.
     /// </summary>
-    public sealed class CosmosDbClientMetrics
+#if PREVIEW
+    public
+#else 
+    internal
+#endif
+    sealed class CosmosDbClientMetrics
     {
         /// <summary>
         /// Operation Metrics