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_88.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={
 b5P(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.a_g(v,u)
+u=new A.a_f(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="\u0a38\u0a2d \u0a1a\u0a41\u0a23\u0a4b"
 break A}if("keyboardToolbar.done"===e){y="\u0a39\u0a4b \u0a17\u0a3f\u0a06"
 break A}y=null
 break A}return y},
-bp1(d){return new A.aU2(d)},
-a_g:function a_g(d,e){var _=this
+bp1(d){return new A.aU3(d)},
+a_f:function a_f(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aQi:function aQi(){},
-aU2:function aU2(d){this.a=d},
-abk:function abk(){}}
+aQj:function aQj(){},
+aU3:function aU3(d){this.a=d},
+abj:function abj(){}}
 B=c[0]
 A=a.updateHolder(c[59],A)
-A.a_g.prototype={
+A.a_f.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb8(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aQi()}return x},
+x=y.z=new A.aQj()}return x},
 gbc(){return this.r}}
-A.aQi.prototype={
+A.aQj.prototype={
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 gbh(){return"\u0a15\u0a3e\u0a2a\u0a40 \u0a15\u0a30\u0a4b"},
 gbj(){return"\u0a2a\u0a47\u0a38\u0a1f \u0a15\u0a30\u0a4b"},
 gbf(){return"\u0a38\u0a2d \u0a1a\u0a41\u0a23\u0a4b"}}
-A.abk.prototype={}
+A.abj.prototype={}
 var z=a.updateTypes([])
-A.aU2.prototype={
+A.aU3.prototype={
 $1(d){return A.bnI(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.abk,B.a_)
-x(A.a_g,A.abk)
-x(A.aQi,B.b2)
-x(A.aU2,B.aU)
-y(A.abk,B.b0)})()
-B.b8(b.typeUniverse,JSON.parse('{"a_g":{"a_":[]}}'))};
-(a=>{a["un/aDwT8pdnh2Xk6akSLKoOx5CU="]=a.current})($__dart_deferred_initializers__);
+x(A.abj,B.a_)
+x(A.a_f,A.abj)
+x(A.aQj,B.b2)
+x(A.aU3,B.aU)
+y(A.abj,B.b0)})()
+B.b8(b.typeUniverse,JSON.parse('{"a_f":{"a_":[]}}'))};
+(a=>{a["+vcxycUf5m1HlOwotzPo2EtnPnk="]=a.current})($__dart_deferred_initializers__);