fix：持仓详情编辑，资讯下拉加载更多

lib/common/router/app_router.dart

@@ -2,6 +2,8 @@ import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 
+import '../../features/assets/presentation/asset_add_page.dart';
+import '../../features/assets/presentation/asset_edit_page.dart';
 import '../../features/assets/presentation/assets_page.dart';
 import '../../features/assets/presentation/holding_detail_page.dart';
 import '../../features/auth/presentation/delete_account_page.dart';
@@ -24,6 +26,8 @@ import 'tab_shell.dart';
 
 abstract final class AppRoutes {
   static const assets = '/assets';
+  static const assetAdd = '/assets/add';
+  static const assetEdit = '/assets/edit';
   static const market = '/market';
   static const marketKline = '/market/kline';
   static const news = '/news';
@@ -93,8 +97,19 @@ final routerProvider = Provider<GoRouter>((ref) {
       ),
       GoRoute(
         path: AppRoutes.assetDetail,
-        builder: (ctx, s) =>
-            HoldingDetailPage(id: s.uri.queryParameters['id']),
+        builder: (ctx, s) => HoldingDetailPage(id: s.uri.queryParameters['id']),
+      ),
+      GoRoute(
+        path: AppRoutes.assetAdd,
+        pageBuilder: (ctx, s) =>
+            _rightToLeftPage(state: s, child: const AssetAddPage()),
+      ),
+      GoRoute(
+        path: AppRoutes.assetEdit,
+        pageBuilder: (ctx, s) => _rightToLeftPage(
+          state: s,
+          child: AssetEditPage(id: s.uri.queryParameters['id'] ?? ''),
+        ),
       ),
       GoRoute(
         path: AppRoutes.marketKline,
@@ -223,10 +238,33 @@ CustomTransitionPage<T> _bottomUpPage<T>({
           begin: const Offset(0, 0.08),
           end: Offset.zero,
         ).animate(curved),
-        child: FadeTransition(
-          opacity: curved,
-          child: pageChild,
-        ),
+        child: FadeTransition(opacity: curved, child: pageChild),
+      );
+    },
+  );
+}
+
+CustomTransitionPage<T> _rightToLeftPage<T>({
+  required GoRouterState state,
+  required Widget child,
+}) {
+  return CustomTransitionPage<T>(
+    key: state.pageKey,
+    transitionDuration: const Duration(milliseconds: 260),
+    reverseTransitionDuration: const Duration(milliseconds: 220),
+    child: child,
+    transitionsBuilder: (context, animation, secondaryAnimation, pageChild) {
+      final curved = CurvedAnimation(
+        parent: animation,
+        curve: Curves.easeOutCubic,
+        reverseCurve: Curves.easeInCubic,
+      );
+      return SlideTransition(
+        position: Tween<Offset>(
+          begin: const Offset(1, 0),
+          end: Offset.zero,
+        ).animate(curved),
+        child: FadeTransition(opacity: curved, child: pageChild),
       );
     },
   );

lib/common/router/tab_shell.dart

@@ -161,20 +161,20 @@ class _TabButton extends StatelessWidget {
       child: Column(
         mainAxisAlignment: MainAxisAlignment.center,
         children: [
-          if (selected)
-            Container(
-              width: 22,
-              height: 2.5,
-              margin: const EdgeInsets.only(bottom: 6),
-              decoration: BoxDecoration(
-                color: cs.primary,
-                borderRadius: const BorderRadius.vertical(
-                  bottom: Radius.circular(3),
-                ),
-              ),
-            )
-          else
-            const SizedBox(height: 8.5),
+          // if (selected)
+          //   Container(
+          //     width: 22,
+          //     height: 2.5,
+          //     margin: const EdgeInsets.only(bottom: 6),
+          //     decoration: BoxDecoration(
+          //       color: cs.primary,
+          //       borderRadius: const BorderRadius.vertical(
+          //         bottom: Radius.circular(3),
+          //       ),
+          //     ),
+          //   )
+          // else
+          //   const SizedBox(height: 8.5),
           Icon(icon, size: 22, color: color),
           const SizedBox(height: 4),
           Text(