Update cross-references and add utilities to architecture guide

Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>

Author: Copilot

content/docs/guide/architecture.md

@@ -100,6 +100,18 @@ Each plugin provides specialized, complex widgets:
 
 **Important**: Heavy dependencies (like AG Grid, Monaco, Recharts) are only allowed in plugin packages to keep the core bundle small.
 
+### Utility Packages
+
+Development tools and integration utilities:
+
+- `@object-ui/cli` - Command-line tool for building apps from schemas
+- `@object-ui/create-plugin` - Interactive plugin scaffolder
+- `@object-ui/runner` - Universal runtime for testing and demos
+- `@object-ui/data-objectstack` - ObjectStack data backend adapter
+- `vscode-extension` - VS Code extension for schema development
+
+[Learn more about utilities →](/docs/utilities)
+
 ## How Schema Rendering Works
 
 ### 1. JSON Schema Input
@@ -401,3 +413,4 @@ ComponentRegistry.register('my-widget', MyWidget, {
 - [Expressions](/docs/guide/expressions) - Dynamic expressions
 - [Plugins](/docs/guide/plugins) - Plugin system
 - [Data Sources](/docs/guide/data-source) - Data integration
+- [Utilities](/docs/utilities) - Development tools and CLI utilities

content/docs/guide/plugins.md

@@ -526,6 +526,9 @@ export function registerComponents() {
 - [Schema Rendering](./schema-rendering.md) - How schemas become UI
 - [Lazy-Loaded Plugins Architecture](./lazy-loading.md) - Deep dive
 - [Creating Components](/spec/component-package.md) - Component development
+- **[Create Plugin Utility](/docs/utilities/create-plugin)** - Scaffold new plugins quickly
+- **[CLI Tool](/docs/utilities/cli)** - Test plugins with the CLI
+- **[All Utilities](/docs/utilities)** - Complete toolkit for development
 
 ## Next Steps
 

content/docs/utilities/create-plugin.mdx

@@ -345,7 +345,7 @@ The tool uses:
 - **[Plugin Concepts](/docs/guide/plugins)** - Learn how plugins work
 - **[CLI](/docs/utilities/cli)** - Test your plugin with the CLI
 - **[Component Registry](/docs/guide/component-registry)** - Register components
-- **[Publishing Guide](/docs/guide/publishing-plugins)** - Publish to npm
+- **[Plugin Development Guide](/docs/guide/plugins)** - Learn plugin best practices
 
 ## Troubleshooting