docs: Update docs-site pages to align with README source of truth

- Update registration examples to use AddStoreWithUtilities
- Add persistence example to Todo List
- Update library size information (38 KB gzipped)
- Ensure all code examples follow recommended patterns
- Add comments to clarify registration approach

Author: mashrulhaque

docs-site/src/pages/Examples.jsx

@@ -23,7 +23,8 @@ public record CounterState(int Count, string? LastAction = null)
 }`;
 
   const counterProgramCode = `// Program.cs
-builder.Services.AddStore(
+// Recommended - All-in-one registration with utilities + async executor
+builder.Services.AddStoreWithUtilities(
     new CounterState(0),
     (store, sp) => store.WithDefaults(sp, "Counter")
 );`;
@@ -123,9 +124,11 @@ public record TodoState(
 }`;
 
   const todoProgramCode = `// Program.cs
-builder.Services.AddStore(
+builder.Services.AddStoreWithUtilities(
     new TodoState(),
-    (store, sp) => store.WithDefaults(sp, "Todo")
+    (store, sp) => store
+        .WithDefaults(sp, "Todo")
+        .WithPersistence(sp, "todos")  // Auto-save to LocalStorage
 );`;
 
   const todoComponentCode = `// TodoList.razor

docs-site/src/pages/GettingStarted.jsx

@@ -93,8 +93,7 @@ builder.Services.AddStoreWithUtilities(
 
       <Alert type="info" title="Prerequisites">
         <ul style={{ margin: 0, paddingLeft: '1.5rem' }}>
-          <li>.NET 8.0 or higher</li>
-          <li>Blazor Server or WebAssembly project</li>
+          <li><strong>Requirements:</strong> .NET 8.0+ • Blazor Server or WebAssembly • <strong>38 KB</strong> gzipped (less than a logo image!)</li>
           <li>Basic understanding of C# records and LINQ</li>
         </ul>
       </Alert>

docs-site/src/pages/Home.jsx

@@ -18,8 +18,8 @@ const Home = () => {
         this with { Count = 0, LastAction = "Reset" };
 }`;
 
-  const registrationExample = `// Simple - with default setup (DevTools + Logging)
-builder.Services.AddStore(
+  const registrationExample = `// One-liner registration with all features
+builder.Services.AddStoreWithUtilities(
     new CounterState(0),
     (store, sp) => store.WithDefaults(sp, "Counter"));`;