fix: 修复复制地址提示层级问题，改用 toast 提示

- 创建统一的 ToastUtils 工具类
- 使用 BotToast.showCustomText 确保显示在所有弹窗之上
- 更新三处复制地址的代码使用新的 toast 方案
- 添加阴影效果提升视觉层次
- 支持成功/错误/警告等多种提示类型

flutter_monisuo/build/web/main.dart.js_7.part.js

@@ -1,15 +1,15 @@
 ((a,b)=>{a[b]=a[b]||{}})(self,"$__dart_deferred_initializers__")
 $__dart_deferred_initializers__.current=function(a,b,c,$){var B,A={
-b1W(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.Yb(v,u)
-u.bd(d,w,e,w)
+b3v(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
+u=new A.Yt(v,u)
+u.bf(d,w,e,w)
 y=u.a
 x=v.r
 x.toString
 y.r=x
-v.r=A.bmL(u)
+v.r=A.box(u)
 return u},
-blr(d,e){var y
+bnd(d,e){var y
 A:{if("timePicker.hours"===e){y="\u0998\u09a3\u09cd\u099f\u09be"
 break A}if("timePicker.minutes"===e){y="\u09ae\u09bf\u09a8\u09bf\u099f"
 break A}if("timePicker.seconds"===e){y="\u099b\u09c7\u0995\u09c7\u09a3\u09cd\u09a1"
@@ -23,38 +23,38 @@ break A}if("input.selectAll"===e){y="\u09b8\u0995\u09b2\u09cb \u09ac\u09be\u099b
 break A}if("keyboardToolbar.done"===e){y="\u09b8\u09ae\u09cd\u09aa\u09a8\u09cd\u09a8"
 break A}y=null
 break A}return y},
-bmL(d){return new A.aS3(d)},
-Yb:function Yb(d,e){var _=this
+box(d){return new A.aTt(d)},
+Yt:function Yt(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aMn:function aMn(){},
-aS3:function aS3(d){this.a=d},
-a91:function a91(){}}
+aNN:function aNN(){},
+aTt:function aTt(d){this.a=d},
+a9u:function a9u(){}}
 B=c[0]
 A=a.updateHolder(c[6],A)
-A.Yb.prototype={
+A.Yt.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb4(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aMn()}return x},
-gb8(){return this.r}}
-A.aMn.prototype={
-gbg(){return"\u0995\u09be\u099f"},
-gbf(){return"\u0995\u09aa\u09bf"},
-gbh(){return"\u09aa\u09c7\u09b7\u09cd\u099f"},
-gbc(){return"\u09b8\u0995\u09b2\u09cb \u09ac\u09be\u099b\u0995"}}
-A.a91.prototype={}
+x=y.z=new A.aNN()}return x},
+gb9(){return this.r}}
+A.aNN.prototype={
+gbh(){return"\u0995\u09be\u099f"},
+gbg(){return"\u0995\u09aa\u09bf"},
+gbi(){return"\u09aa\u09c7\u09b7\u09cd\u099f"},
+gbe(){return"\u09b8\u0995\u09b2\u09cb \u09ac\u09be\u099b\u0995"}}
+A.a9u.prototype={}
 var z=a.updateTypes([])
-A.aS3.prototype={
-$1(d){return A.blr(this.a,d)},
+A.aTt.prototype={
+$1(d){return A.bnd(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.a91,B.a_)
-x(A.Yb,A.a91)
-x(A.aMn,B.aZ)
-x(A.aS3,B.aQ)
-y(A.a91,B.aW)})()
-B.b3(b.typeUniverse,JSON.parse('{"Yb":{"a_":[]}}'))};
-(a=>{a["JKUNNvQJvVRISGvgNDAHET8zPUg="]=a.current})($__dart_deferred_initializers__);
+x(A.a9u,B.a_)
+x(A.Yt,A.a9u)
+x(A.aNN,B.aZ)
+x(A.aTt,B.aR)
+y(A.a9u,B.aX)})()
+B.b3(b.typeUniverse,JSON.parse('{"Yt":{"a_":[]}}'))};
+(a=>{a["etqKj3Xo/wB+B/FQ3dyxyjLnrTA="]=a.current})($__dart_deferred_initializers__);