fix: 彻底修复 flow-anim.dart Obx 嵌套导致的页面卡死

- 移除 FlowingBorderContainer 内部的 Obx 和 ThemeController
- FlowingBorderContainer 不再自行监听主题色变化
- 颜色通过 widget.color 参数从外部传入
- poetry.dart 中传入 primaryColor 变量
- 避免 Obx 嵌套导致的 GetX 异常

lib/views/profile/level/flow-anim.dart

@@ -1,9 +1,7 @@
 import 'dart:math';
 
 import 'package:flutter/material.dart';
-import 'package:get/get.dart';
 
-import '../../../services/get/theme_controller.dart';
 import '../../../models/colors/theme_colors.dart';
 
 /// 流动边框装饰器
@@ -84,7 +82,6 @@ class _FlowingBorderContainerState extends State<FlowingBorderContainer>
     with SingleTickerProviderStateMixin {
   late AnimationController _controller;
   late Animation<double> _animation;
-  final ThemeController _themeController = Get.find<ThemeController>();
 
   @override
   void initState() {
@@ -111,21 +108,15 @@ class _FlowingBorderContainerState extends State<FlowingBorderContainer>
     return AnimatedBuilder(
       animation: _animation,
       builder: (context, child) {
-        return Obx(() {
-          final color =
-              widget.color ??
-              ThemeColors.getThemeColor(_themeController.themeColorIndexRx.value);
-
-          return Container(
-            padding: EdgeInsets.all(widget.width),
-            decoration: FlowingBorderDecoration(
-              animation: _animation,
-              color: color,
-              width: widget.width,
-            ),
-            child: widget.child,
-          );
-        });
+        return Container(
+          padding: EdgeInsets.all(widget.width),
+          decoration: FlowingBorderDecoration(
+            animation: _animation,
+            color: widget.color ?? ThemeColors.getThemeColor(0),
+            width: widget.width,
+          ),
+          child: widget.child,
+        );
       },
     );
   }