Defined a base provider to handle http client & base address

app/MindWork AI Studio/Provider/BaseProvider.cs

@@ -0,0 +1,22 @@
+namespace AIStudio.Provider;
+
+/// <summary>
+/// The base class for all providers.
+/// </summary>
+public abstract class BaseProvider
+{
+    /// <summary>
+    /// The HTTP client to use for all requests.
+    /// </summary>
+    protected readonly HttpClient httpClient = new();
+
+    /// <summary>
+    /// Constructor for the base provider.
+    /// </summary>
+    /// <param name="url">The base URL for the provider.</param>
+    protected BaseProvider(string url)
+    {
+        // Set the base URL:
+        this.httpClient.BaseAddress = new(url);
+    }
+}