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_47.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={
-b2f(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.Yv(v,u)
-u.bd(d,w,e,w)
+b3P(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
+u=new A.YN(v,u)
+u.bf(d,w,e,w)
 y=u.a
 x=v.r
 x.toString
 y.r=x
-v.r=A.bmp(u)
+v.r=A.bob(u)
 return u},
-bl5(d,e){var y
+bmS(d,e){var y
 A:{if("timePicker.hours"===e){y="Uaireanta"
 break A}if("timePicker.minutes"===e){y="N\xf3im\xe9id"
 break A}if("timePicker.seconds"===e){y="Soicind\xed"
@@ -23,38 +23,38 @@ break A}if("input.selectAll"===e){y="Roghnaigh uile"
 break A}if("keyboardToolbar.done"===e){y="D\xe9anta"
 break A}y=null
 break A}return y},
-bmp(d){return new A.aRI(d)},
-Yv:function Yv(d,e){var _=this
+bob(d){return new A.aT7(d)},
+YN:function YN(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aMH:function aMH(){},
-aRI:function aRI(d){this.a=d},
-a9l:function a9l(){}}
+aO6:function aO6(){},
+aT7:function aT7(d){this.a=d},
+a9O:function a9O(){}}
 B=c[0]
 A=a.updateHolder(c[26],A)
-A.Yv.prototype={
+A.YN.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb4(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aMH()}return x},
-gb8(){return this.r}}
-A.aMH.prototype={
-gbg(){return"Gearr"},
-gbf(){return"C\xf3ipe\xe1il"},
-gbh(){return"Greamaigh"},
-gbc(){return"Roghnaigh uile"}}
-A.a9l.prototype={}
+x=y.z=new A.aO6()}return x},
+gb9(){return this.r}}
+A.aO6.prototype={
+gbh(){return"Gearr"},
+gbg(){return"C\xf3ipe\xe1il"},
+gbi(){return"Greamaigh"},
+gbe(){return"Roghnaigh uile"}}
+A.a9O.prototype={}
 var z=a.updateTypes([])
-A.aRI.prototype={
-$1(d){return A.bl5(this.a,d)},
+A.aT7.prototype={
+$1(d){return A.bmS(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.a9l,B.a_)
-x(A.Yv,A.a9l)
-x(A.aMH,B.aZ)
-x(A.aRI,B.aQ)
-y(A.a9l,B.aW)})()
-B.b3(b.typeUniverse,JSON.parse('{"Yv":{"a_":[]}}'))};
-(a=>{a["gS3ZYGzZeA7QNBM03L1bRhklUz0="]=a.current})($__dart_deferred_initializers__);
+x(A.a9O,B.a_)
+x(A.YN,A.a9O)
+x(A.aO6,B.aZ)
+x(A.aT7,B.aR)
+y(A.a9O,B.aX)})()
+B.b3(b.typeUniverse,JSON.parse('{"YN":{"a_":[]}}'))};
+(a=>{a["Vx3tQoBfp0UBm3HqzIO4R4EISMM="]=a.current})($__dart_deferred_initializers__);