perf(memory-leaks): introduce Tasks.Texts.Observe

Tests/YDotNet.Tests.Driver/Program.cs

@@ -1,5 +1,5 @@
 // See https://aka.ms/new-console-template for more information
 
-using YDotNet.Tests.Driver.Tasks.Branches;
+using YDotNet.Tests.Driver.Tasks.Texts;
 
-new StickyIndex().Run();
+new Observe().Run();

Tests/YDotNet.Tests.Driver/Tasks/Texts/Observe.cs

@@ -0,0 +1,48 @@
+using YDotNet.Document;
+using YDotNet.Tests.Driver.Abstractions;
+
+namespace YDotNet.Tests.Driver.Tasks.Texts;
+
+public class Observe : ITask
+{
+    public Task Run()
+    {
+        var count = 0;
+
+        // Create many documents
+        while (count < 1_000_000)
+        {
+            // After 1s, stop and show the user the amount of documents
+            if (count > 0)
+            {
+                Console.WriteLine("Status Report");
+                Console.WriteLine($"\tTexts:\t{count}");
+                Console.WriteLine();
+            }
+
+            if (count % 1_000 == 0)
+            {
+                Thread.Sleep(millisecondsTimeout: 15);
+            }
+
+            // Create many documents
+            for (var i = 0; i < 100; i++)
+            {
+                var doc = new Doc();
+                var text = doc.Text($"sample-{i}");
+                var subscription = text.Observe(_ => { });
+
+                var transaction = doc.WriteTransaction();
+                text.Insert(transaction, index: 0, "YDotNet");
+                transaction.Commit();
+
+                text.Unobserve(subscription);
+                doc.Dispose();
+
+                count++;
+            }
+        }
+
+        return Task.CompletedTask;
+    }
+}