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_81.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={
 b5J(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.a_a(v,u)
+u=new A.a_9(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="\u1021\u102c\u1038\u101c\u102f\u1036\u1038\
 break A}if("keyboardToolbar.done"===e){y="\u1015\u103c\u102e\u1038\u1015\u103c\u102e"
 break A}y=null
 break A}return y},
-bp8(d){return new A.aU9(d)},
-a_a:function a_a(d,e){var _=this
+bp8(d){return new A.aUa(d)},
+a_9:function a_9(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aQc:function aQc(){},
-aU9:function aU9(d){this.a=d},
-abe:function abe(){}}
+aQd:function aQd(){},
+aUa:function aUa(d){this.a=d},
+abd:function abd(){}}
 B=c[0]
 A=a.updateHolder(c[53],A)
-A.a_a.prototype={
+A.a_9.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb8(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aQc()}return x},
+x=y.z=new A.aQd()}return x},
 gbc(){return this.r}}
-A.aQc.prototype={
+A.aQd.prototype={
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 gbh(){return"\u1019\u102d\u1010\u1039\u1010\u1030\u1000\u1030\u1038"},
 gbj(){return"\u1000\u1030\u1038\u1011\u100a\u1037\u103a"},
 gbf(){return"\u1021\u102c\u1038\u101c\u102f\u1036\u1038\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a"}}
-A.abe.prototype={}
+A.abd.prototype={}
 var z=a.updateTypes([])
-A.aU9.prototype={
+A.aUa.prototype={
 $1(d){return A.bnP(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.abe,B.a_)
-x(A.a_a,A.abe)
-x(A.aQc,B.b2)
-x(A.aU9,B.aU)
-y(A.abe,B.b0)})()
-B.b8(b.typeUniverse,JSON.parse('{"a_a":{"a_":[]}}'))};
-(a=>{a["GkRlHlfpiF2yLmANicWtOKvTqEw="]=a.current})($__dart_deferred_initializers__);
+x(A.abd,B.a_)
+x(A.a_9,A.abd)
+x(A.aQd,B.b2)
+x(A.aUa,B.aU)
+y(A.abd,B.b0)})()
+B.b8(b.typeUniverse,JSON.parse('{"a_9":{"a_":[]}}'))};
+(a=>{a["blaJ7zdtiEwepAy2gbWS20Ke0+E="]=a.current})($__dart_deferred_initializers__);