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_87.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={
-b2L(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.Z0(v,u)
-u.bd(d,w,e,w)
+b4k(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
+u=new A.Zi(v,u)
+u.bf(d,w,e,w)
 y=u.a
 x=v.r
 x.toString
 y.r=x
-v.r=A.blR(u)
+v.r=A.bnD(u)
 return u},
-bkx(d,e){var y
+bmj(d,e){var y
 A:{if("timePicker.hours"===e){y="\u0b18\u0b23\u0b4d\u0b1f\u0b3e"
 break A}if("timePicker.minutes"===e){y="\u0b2e\u0b3f\u0b28\u0b3f\u0b1f"
 break A}if("timePicker.seconds"===e){y="\u0b38\u0b47\u0b15\u0b47\u0b23\u0b4d\u0b21"
@@ -23,38 +23,38 @@ break A}if("input.selectAll"===e){y="\u0b38\u0b2c\u0b41 \u0b1a\u0b5f\u0b28 \u0b1
 break A}if("keyboardToolbar.done"===e){y="\u0b38\u0b2e\u0b4d\u0b2a\u0b28\u0b4d\u0b28"
 break A}y=null
 break A}return y},
-blR(d){return new A.aR9(d)},
-Z0:function Z0(d,e){var _=this
+bnD(d){return new A.aSz(d)},
+Zi:function Zi(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aNc:function aNc(){},
-aR9:function aR9(d){this.a=d},
-a9R:function a9R(){}}
+aOC:function aOC(){},
+aSz:function aSz(d){this.a=d},
+aaj:function aaj(){}}
 B=c[0]
 A=a.updateHolder(c[58],A)
-A.Z0.prototype={
+A.Zi.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb4(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aNc()}return x},
-gb8(){return this.r}}
-A.aNc.prototype={
-gbg(){return"\u0b15\u0b1f"},
-gbf(){return"\u0b15\u0b2a\u0b3f"},
-gbh(){return"\u0b2a\u0b47\u0b37\u0b4d\u0b1f"},
-gbc(){return"\u0b38\u0b2c\u0b41 \u0b1a\u0b5f\u0b28 \u0b15\u0b30\u0b28\u0b4d\u0b24\u0b41"}}
-A.a9R.prototype={}
+x=y.z=new A.aOC()}return x},
+gb9(){return this.r}}
+A.aOC.prototype={
+gbh(){return"\u0b15\u0b1f"},
+gbg(){return"\u0b15\u0b2a\u0b3f"},
+gbi(){return"\u0b2a\u0b47\u0b37\u0b4d\u0b1f"},
+gbe(){return"\u0b38\u0b2c\u0b41 \u0b1a\u0b5f\u0b28 \u0b15\u0b30\u0b28\u0b4d\u0b24\u0b41"}}
+A.aaj.prototype={}
 var z=a.updateTypes([])
-A.aR9.prototype={
-$1(d){return A.bkx(this.a,d)},
+A.aSz.prototype={
+$1(d){return A.bmj(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.a9R,B.a_)
-x(A.Z0,A.a9R)
-x(A.aNc,B.aZ)
-x(A.aR9,B.aQ)
-y(A.a9R,B.aW)})()
-B.b3(b.typeUniverse,JSON.parse('{"Z0":{"a_":[]}}'))};
-(a=>{a["rSLNBAzWfl24GvrmaX+i6IA+ls8="]=a.current})($__dart_deferred_initializers__);
+x(A.aaj,B.a_)
+x(A.Zi,A.aaj)
+x(A.aOC,B.aZ)
+x(A.aSz,B.aR)
+y(A.aaj,B.aX)})()
+B.b3(b.typeUniverse,JSON.parse('{"Zi":{"a_":[]}}'))};
+(a=>{a["GJjwr0Sf0vrFu2RQaqA9NOxOMbg="]=a.current})($__dart_deferred_initializers__);