refactor(divination): 优化占卜界面和组件

- 更新占卜处理和结果页面
- 优化占卜共享组件

apps/lib/features/divination/presentation/screens/divination_processing_screen.dart

@@ -149,7 +149,7 @@ class _DivinationProcessingScreenState extends State<DivinationProcessingScreen>
     if (data == null) {
       return;
     }
-    Navigator.of(context).pushReplacement(
+    Navigator.of(context).pushAndRemoveUntil(
       MaterialPageRoute<void>(
         builder: (_) => DivinationResultScreen(
           data: data,
@@ -157,6 +157,7 @@ class _DivinationProcessingScreenState extends State<DivinationProcessingScreen>
           enableIntroTransition: true,
         ),
       ),
+      (route) => route.isFirst,
     );
   }
 

apps/lib/features/divination/presentation/screens/divination_result_screen.dart

@@ -170,12 +170,7 @@ class _DivinationResultScreenState extends State<DivinationResultScreen> {
     final l10n = AppLocalizations.of(context)!;
     return PopScope<void>(
       canPop: true,
-      onPopInvokedWithResult: (didPop, result) {
-        if (didPop) {
-          return;
-        }
-        _backToHome();
-      },
+      onPopInvokedWithResult: (didPop, result) {},
       child: Scaffold(
         backgroundColor: colors.surface,
         appBar: AppBar(