Update README files with ObjectSchema.create() examples

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

Author: Copilot

examples/app-react-crud/README.md

@@ -36,19 +36,35 @@ Create an `objectstack.config.ts` to define your data models and application str
 ```typescript
 // objectstack.config.ts
 import { defineStack } from '@objectstack/spec';
+import { ObjectSchema, Field } from '@objectstack/spec/data';
 
-export const TaskObject = {
+export const Task = ObjectSchema.create({
   name: 'task',
   label: 'Task',
+  icon: 'check-square',
+  
   fields: {
-    subject: { type: 'text', required: true },
-    priority: { type: 'number', defaultValue: 1 },
-    isCompleted: { type: 'boolean', defaultValue: false }
-  }
-};
+    subject: Field.text({ 
+      label: 'Subject',
+      required: true,
+    }),
+    
+    priority: Field.number({ 
+      label: 'Priority',
+      defaultValue: 1,
+      min: 1,
+      max: 5,
+    }),
+    
+    is_completed: Field.boolean({ 
+      label: 'Completed',
+      defaultValue: false,
+    }),
+  },
+});
 
 export default defineStack({
-  objects: [TaskObject]
+  objects: [Task]
 });
 ```
 

packages/spec/README.md

@@ -12,9 +12,49 @@ The **Source of Truth** for the ObjectStack Protocol. Contains strictly typed Zo
 
 ## Usage
 
+**Recommended: Use `ObjectSchema.create()` with `Field.*` helpers for strict TypeScript validation:**
+
+```typescript
+import { ObjectSchema, Field } from '@objectstack/spec/data';
+
+// Create a validated object definition with type checking
+export const Task = ObjectSchema.create({
+  name: 'task',
+  label: 'Task',
+  icon: 'check-square',
+  
+  fields: {
+    title: Field.text({
+      label: 'Title',
+      required: true,
+      maxLength: 200,
+    }),
+    
+    status: Field.select({
+      label: 'Status',
+      options: [
+        { label: 'To Do', value: 'todo', default: true },
+        { label: 'In Progress', value: 'in_progress' },
+        { label: 'Done', value: 'done' },
+      ],
+    }),
+  },
+  
+  enable: {
+    trackHistory: true,
+    apiEnabled: true,
+  },
+});
+```
+
+**Alternative: Runtime validation of existing objects:**
+
 ```typescript
-import { ObjectSchema, ViewSchema } from '@objectstack/spec';
+import { ObjectSchema } from '@objectstack/spec/data';
 
 // Validate a JSON object against the schema
 const result = ObjectSchema.parse(myObjectDefinition);
+if (result.success) {
+  console.log('Valid object:', result.data);
+}
 ```