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_30.part.js

@@ -1,15 +1,15 @@
 ((a,b)=>{a[b]=a[b]||{}})(self,"$__dart_deferred_initializers__")
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-u=new A.Yl(v,u)
-u.bd(d,w,e,w)
+b3F(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
+u=new A.YD(v,u)
+u.bf(d,w,e,w)
 y=u.a
 x=v.r
 x.toString
 y.r=x
-v.r=A.bmA(u)
+v.r=A.bom(u)
 return u},
-blg(d,e){var y
+bn2(d,e){var y
 A:{if("timePicker.hours"===e){y="Timer"
 break A}if("timePicker.minutes"===e){y="Minutter"
 break A}if("timePicker.seconds"===e){y="Sekunder"
@@ -23,38 +23,38 @@ break A}if("input.selectAll"===e){y="V\xe6lg alt"
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 break A}y=null
 break A}return y},
-bmA(d){return new A.aRT(d)},
-Yl:function Yl(d,e){var _=this
+bom(d){return new A.aTi(d)},
+YD:function YD(d,e){var _=this
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 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aMx:function aMx(){},
-aRT:function aRT(d){this.a=d},
-a9b:function a9b(){}}
+aNX:function aNX(){},
+aTi:function aTi(d){this.a=d},
+a9E:function a9E(){}}
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 A=a.updateHolder(c[16],A)
-A.Yl.prototype={
+A.YD.prototype={
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-gb8(){return this.r}}
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-gbf(){return"Kopi\xe9r"},
-gbh(){return"S\xe6t ind"},
-gbc(){return"V\xe6lg alt"}}
-A.a9b.prototype={}
+x=y.z=new A.aNX()}return x},
+gb9(){return this.r}}
+A.aNX.prototype={
+gbh(){return"Klip"},
+gbg(){return"Kopi\xe9r"},
+gbi(){return"S\xe6t ind"},
+gbe(){return"V\xe6lg alt"}}
+A.a9E.prototype={}
 var z=a.updateTypes([])
-A.aRT.prototype={
-$1(d){return A.blg(this.a,d)},
+A.aTi.prototype={
+$1(d){return A.bn2(this.a,d)},
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-x(A.a9b,B.a_)
-x(A.Yl,A.a9b)
-x(A.aMx,B.aZ)
-x(A.aRT,B.aQ)
-y(A.a9b,B.aW)})()
-B.b3(b.typeUniverse,JSON.parse('{"Yl":{"a_":[]}}'))};
-(a=>{a["/HJvYjfOjwJwYr6FU1jKGcLPBzE="]=a.current})($__dart_deferred_initializers__);
+x(A.a9E,B.a_)
+x(A.YD,A.a9E)
+x(A.aNX,B.aZ)
+x(A.aTi,B.aR)
+y(A.a9E,B.aX)})()
+B.b3(b.typeUniverse,JSON.parse('{"YD":{"a_":[]}}'))};
+(a=>{a["+vwO9ljZld9jZJ58loGeONlQpp4="]=a.current})($__dart_deferred_initializers__);