fix(ui): 对齐所有页面样式到 Pencil 设计规范

transfer_page.dart:
- 金色主题统一（Light: secondary #F59E0B, Dark: primary #D4AF37）
- 修复交换按钮和确认按钮颜色

home_page.dart:
- Asset Card 圆角 14px
- 总资产字号 28px (displayLarge)
- "预估总资产"字号 13px (bodyLarge)
- 盈亏标签/数值字重调整

quick_actions_row.dart:
- padding 统一为 16px

welfare_center_page.dart:
- _statusBadge padding [6, 14]

trade_form_card.dart / price_card.dart:
- 样式细节对齐

flutter_monisuo/build/web/main.dart.js_72.part.js

@@ -1,7 +1,7 @@
 ((a,b)=>{a[b]=a[b]||{}})(self,"$__dart_deferred_initializers__")
 $__dart_deferred_initializers__.current=function(a,b,c,$){var B,A={
 b5A(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.a_1(v,u)
+u=new A.a_0(v,u)
 u.bg(d,w,e,w)
 y=u.a
 x=v.r
@@ -23,38 +23,38 @@ break A}if("input.selectAll"===e){y="\u0411\u0430\u0430\u0440\u044b\u043d \u0442
 break A}if("keyboardToolbar.done"===e){y="\u0414\u0430\u044f\u0440"
 break A}y=null
 break A}return y},
-bph(d){return new A.aUi(d)},
-a_1:function a_1(d,e){var _=this
+bph(d){return new A.aUj(d)},
+a_0:function a_0(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aQ3:function aQ3(){},
-aUi:function aUi(d){this.a=d},
-ab5:function ab5(){}}
+aQ4:function aQ4(){},
+aUj:function aUj(d){this.a=d},
+ab4:function ab4(){}}
 B=c[0]
 A=a.updateHolder(c[44],A)
-A.a_1.prototype={
+A.a_0.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb8(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aQ3()}return x},
+x=y.z=new A.aQ4()}return x},
 gbc(){return this.r}}
-A.aQ3.prototype={
+A.aQ4.prototype={
 gbi(){return"\u041a\u0435\u0441\u04af\u04af"},
 gbh(){return"\u041a\u04e9\u0447\u04af\u0440\u04af\u04af"},
 gbj(){return"\u0427\u0430\u043f\u0442\u043e\u043e"},
 gbf(){return"\u0411\u0430\u0430\u0440\u044b\u043d \u0442\u0430\u043d\u0434\u043e\u043e"}}
-A.ab5.prototype={}
+A.ab4.prototype={}
 var z=a.updateTypes([])
-A.aUi.prototype={
+A.aUj.prototype={
 $1(d){return A.bnY(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.ab5,B.a_)
-x(A.a_1,A.ab5)
-x(A.aQ3,B.b2)
-x(A.aUi,B.aU)
-y(A.ab5,B.b0)})()
-B.b8(b.typeUniverse,JSON.parse('{"a_1":{"a_":[]}}'))};
-(a=>{a["ONeaN1QjRjMVQGnq1Zz0g2sUS3Y="]=a.current})($__dart_deferred_initializers__);
+x(A.ab4,B.a_)
+x(A.a_0,A.ab4)
+x(A.aQ4,B.b2)
+x(A.aUj,B.aU)
+y(A.ab4,B.b0)})()
+B.b8(b.typeUniverse,JSON.parse('{"a_0":{"a_":[]}}'))};
+(a=>{a["u0Mjpz2dvp1aUgifbFczTSkAfzs="]=a.current})($__dart_deferred_initializers__);