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_100.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={
-b2Y(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.Zd(v,u)
-u.bd(d,w,e,w)
+b4x(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
+u=new A.Zv(v,u)
+u.bf(d,w,e,w)
 y=u.a
 x=v.r
 x.toString
 y.r=x
-v.r=A.blD(u)
+v.r=A.bnp(u)
 return u},
-bkj(d,e){var y
+bm5(d,e){var y
 A:{if("timePicker.hours"===e){y="Masaa"
 break A}if("timePicker.minutes"===e){y="Dakika"
 break A}if("timePicker.seconds"===e){y="Sekunde"
@@ -23,38 +23,38 @@ break A}if("input.selectAll"===e){y="Chagua yote"
 break A}if("keyboardToolbar.done"===e){y="Imekamilika"
 break A}y=null
 break A}return y},
-blD(d){return new A.aQW(d)},
-Zd:function Zd(d,e){var _=this
+bnp(d){return new A.aSl(d)},
+Zv:function Zv(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aNp:function aNp(){},
-aQW:function aQW(d){this.a=d},
-aa3:function aa3(){}}
+aOP:function aOP(){},
+aSl:function aSl(d){this.a=d},
+aaw:function aaw(){}}
 B=c[0]
 A=a.updateHolder(c[71],A)
-A.Zd.prototype={
+A.Zv.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb4(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aNp()}return x},
-gb8(){return this.r}}
-A.aNp.prototype={
-gbg(){return"Kata"},
-gbf(){return"Nakili"},
-gbh(){return"Bandika"},
-gbc(){return"Chagua yote"}}
-A.aa3.prototype={}
+x=y.z=new A.aOP()}return x},
+gb9(){return this.r}}
+A.aOP.prototype={
+gbh(){return"Kata"},
+gbg(){return"Nakili"},
+gbi(){return"Bandika"},
+gbe(){return"Chagua yote"}}
+A.aaw.prototype={}
 var z=a.updateTypes([])
-A.aQW.prototype={
-$1(d){return A.bkj(this.a,d)},
+A.aSl.prototype={
+$1(d){return A.bm5(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.aa3,B.a_)
-x(A.Zd,A.aa3)
-x(A.aNp,B.aZ)
-x(A.aQW,B.aQ)
-y(A.aa3,B.aW)})()
-B.b3(b.typeUniverse,JSON.parse('{"Zd":{"a_":[]}}'))};
-(a=>{a["BSJpkJqF9ftSGvq8Nrcp0r5YSxk="]=a.current})($__dart_deferred_initializers__);
+x(A.aaw,B.a_)
+x(A.Zv,A.aaw)
+x(A.aOP,B.aZ)
+x(A.aSl,B.aR)
+y(A.aaw,B.aX)})()
+B.b3(b.typeUniverse,JSON.parse('{"Zv":{"a_":[]}}'))};
+(a=>{a["zQJ/rVPf3YXBJop+NdZXws51DEU="]=a.current})($__dart_deferred_initializers__);