feat(business): enhance block editor with segment conversion and data persistence

- Implement `segmentsToBlocks` utility to convert message segments into editable blocks.
- Update `BlockEditor` and `useBlockEditor` to support initial block loading and improved image upload handling.
- Add logic to `CreatePostScreen` to automatically switch to long-post mode when image segments are detected and preserve data when toggling modes.
- Update `AboutScreen` to make the ICP filing number clickable.
- Refactor mapper imports to use the updated data model paths.

src/screens/profile/AboutScreen.tsx

@@ -300,6 +300,7 @@ function createAboutStyles(colors: AppColors) {
       fontSize: 12,
       color: colors.text.hint,
       marginTop: spacing.xs,
+      textDecorationLine: 'underline',
     },
   });
 }
@@ -571,7 +572,7 @@ export const AboutScreen: React.FC = () => {
 
           <View style={styles.footer}>
             <Text style={styles.copyright}>© 2026 青春之旅电子信息科技（威海）有限公司</Text>
-            <Text style={styles.companyName}>鲁ICP备XXXXXXXX号-1</Text>
+            <Text style={styles.companyName} onPress={() => Linking.openURL('https://beian.miit.gov.cn/')}>鲁ICP备2025144569号-2A</Text>
           </View>
         </View>
       </ScrollView>