Update homepage version to dynamically use @objectstack/spec version

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

Author: Copilot

apps/docs/lib/homepage-i18n.ts

@@ -5,6 +5,8 @@
  * Supports: en (English), cn (Chinese/中文)
  */
 
+import { getSpecVersion } from './version';
+
 export interface HomepageTranslations {
   // Hero Section
   badge: {
@@ -86,7 +88,7 @@ export interface HomepageTranslations {
 export const en: HomepageTranslations = {
   badge: {
     status: 'Protocol Specification',
-    version: 'v0.3.3 (Draft)',
+    version: getSpecVersion(),
   },
   hero: {
     title: {
@@ -157,7 +159,7 @@ export const en: HomepageTranslations = {
 export const cn: HomepageTranslations = {
   badge: {
     status: '协议规范',
-    version: 'v1.0',
+    version: getSpecVersion(),
   },
   hero: {
     title: {

apps/docs/lib/version.ts

@@ -0,0 +1,14 @@
+/**
+ * Version utilities
+ * 
+ * Import the version number from @objectstack/spec package
+ */
+
+import specPackage from '../../../packages/spec/package.json';
+
+/**
+ * Get the current version of @objectstack/spec
+ */
+export function getSpecVersion(): string {
+  return `v${specPackage.version}`;
+}