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_6.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={
-b1V(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.Ya(v,u)
-u.bd(d,w,e,w)
+b3u(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
+u=new A.Ys(v,u)
+u.bf(d,w,e,w)
 y=u.a
 x=v.r
 x.toString
 y.r=x
-v.r=A.bmM(u)
+v.r=A.boy(u)
 return u},
-bls(d,e){var y
+bne(d,e){var y
 A:{if("timePicker.hours"===e){y="\u0633\u0627\u0639\u0627\u062a"
 break A}if("timePicker.minutes"===e){y="\u062f\u0642\u0627\u0626\u0642"
 break A}if("timePicker.seconds"===e){y="\u062b\u0648\u0627\u0646\u064a"
@@ -23,38 +23,38 @@ break A}if("input.selectAll"===e){y="\u062a\u062d\u062f\u064a\u062f \u0627\u0644
 break A}if("keyboardToolbar.done"===e){y="\u062a\u0645"
 break A}y=null
 break A}return y},
-bmM(d){return new A.aS4(d)},
-Ya:function Ya(d,e){var _=this
+boy(d){return new A.aTu(d)},
+Ys:function Ys(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aMm:function aMm(){},
-aS4:function aS4(d){this.a=d},
-a90:function a90(){}}
+aNM:function aNM(){},
+aTu:function aTu(d){this.a=d},
+a9t:function a9t(){}}
 B=c[0]
 A=a.updateHolder(c[5],A)
-A.Ya.prototype={
+A.Ys.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb4(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aMm()}return x},
-gb8(){return this.r}}
-A.aMm.prototype={
-gbg(){return"\u0642\u0635"},
-gbf(){return"\u0646\u0633\u062e"},
-gbh(){return"\u0644\u0635\u0642"},
-gbc(){return"\u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0643\u0644"}}
-A.a90.prototype={}
+x=y.z=new A.aNM()}return x},
+gb9(){return this.r}}
+A.aNM.prototype={
+gbh(){return"\u0642\u0635"},
+gbg(){return"\u0646\u0633\u062e"},
+gbi(){return"\u0644\u0635\u0642"},
+gbe(){return"\u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0643\u0644"}}
+A.a9t.prototype={}
 var z=a.updateTypes([])
-A.aS4.prototype={
-$1(d){return A.bls(this.a,d)},
+A.aTu.prototype={
+$1(d){return A.bne(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.a90,B.a_)
-x(A.Ya,A.a90)
-x(A.aMm,B.aZ)
-x(A.aS4,B.aQ)
-y(A.a90,B.aW)})()
-B.b3(b.typeUniverse,JSON.parse('{"Ya":{"a_":[]}}'))};
-(a=>{a["sXjDdu+Zzzhg7ThaSYxTJeJWR3I="]=a.current})($__dart_deferred_initializers__);
+x(A.a9t,B.a_)
+x(A.Ys,A.a9t)
+x(A.aNM,B.aZ)
+x(A.aTu,B.aR)
+y(A.a9t,B.aX)})()
+B.b3(b.typeUniverse,JSON.parse('{"Ys":{"a_":[]}}'))};
+(a=>{a["WtidN0UadmIQrD1yQKjLJXAx//c="]=a.current})($__dart_deferred_initializers__);