更新文档：重命名“Menus & Navigation”为“Applications & Navigation”，并删除冗余的README.md文件

Author: hotlong

docs/.vitepress/config.mts

@@ -116,7 +116,7 @@ export default defineConfig({
             { text: 'Views & Layouts', link: '/spec/view' },
             { text: 'Forms', link: '/spec/form' },
             { text: 'Reports & Dashboards', link: '/spec/report' },
-            { text: 'Menus & Navigation', link: '/spec/menu' },
+            { text: 'Applications & Navigation', link: '/spec/application' },
           ]
         },
         {

docs/spec/README.md

@@ -1,31 +1,59 @@
-# Metadata Specifications
+# ObjectQL Metadata Specifications
 
 This section contains the complete metadata specifications for the ObjectQL platform. ObjectQL is a metadata-driven standard for enterprise applications - every aspect of your application is defined through structured metadata.
 
 📖 **[Read the Complete Metadata Standard Guide](./metadata-standard.md)** - A comprehensive overview of the entire metadata system and how all pieces fit together.
 
-## Core Data Layer
+## 🤖 AI-Native Metadata Design
+
+ObjectQL metadata is designed from the ground up to be **AI-friendly**, enabling:
+
+- **Better Code Generation**: AI tools understand business intent, not just syntax
+- **Natural Language Queries**: Convert user questions to structured queries
+- **Auto-Documentation**: Generate comprehensive docs from metadata
+- **Smart Validation**: AI suggests improvements and catches errors
+- **Realistic Test Data**: Generate test data following proper patterns
+
+### AI Context Blocks
+
+All metadata types support optional `ai_context` blocks that provide semantic information:
+
+```yaml
+# Example: Object with AI context
+name: project
+fields:
+  status:
+    type: select
+    options: [planning, active, completed]
+    
+    ai_context:
+      intent: "Track project through its lifecycle"
+      is_state_machine: true
+      transitions:
+        planning: [active, cancelled]
+        active: [completed, cancelled]
+```
+
+## 🗂️ Specification Categories
 
-*   [**Objects & Fields**](./object.md) - Data model definitions, field types, relationships, and validation rules
+### Core Data Layer
+*   [**Objects & Fields**](./object.md) - Data model definitions, field types, relationships, and validation
 *   [**Query Language (JSON-DSL)**](./query-language.md) - Unified query protocol for database-agnostic data access
 *   [**Validation Rules**](./validation.md) - Data quality and business rule enforcement
 
-## Business Logic Layer
-
+### Business Logic Layer
 *   [**Hooks (Triggers)**](./hook.md) - Event-driven logic attached to data operations
 *   [**Actions (RPC)**](./action.md) - Custom server-side functions and APIs
 *   [**Workflows & Processes**](./workflow.md) - Automated business processes and approval chains
 
-## Presentation Layer
-
-*   [**Views & Layouts**](./view.md) - Data presentation configurations (list, grid, kanban, calendar)
+### Presentation Layer
+*   [**Views & Layouts**](./view.md) - Data presentation configurations
 *   [**Forms**](./form.md) - Data entry and editing interfaces
-*   [**Reports & Dashboards**](./report.md) - Analytics, visualizations, and business intelligence
-*   [**Applications & Navigation**](./application.md) - Application structure and menu hierarchy
-
-## Security & Access Control
+*   [**Reports & Dashboards**](./report.md) - Analytics and BI
+*   [**Applications & Navigation**](./application.md) - App identity, navigation structure, and context
 
-*   [**Permissions**](./permission.md) - Role-based access control, field-level security, and record-level rules
+### Security & Access Control
+*   [**Permissions**](./permission.md) - Role-based access control and security rules
 
 ## Design Philosophy