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_109.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={
 b68(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_z(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="\u0633\u0628 \u0645\u0646\u062a\u062e\u0628
 break A}if("keyboardToolbar.done"===e){y="\u06c1\u0648 \u06af\u06cc\u0627"
 break A}y=null
 break A}return y},
-bpi(d){return new A.aUj(d)},
-a_A:function a_A(d,e){var _=this
+bpi(d){return new A.aUk(d)},
+a_z:function a_z(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aQC:function aQC(){},
-aUj:function aUj(d){this.a=d},
-abE:function abE(){}}
+aQD:function aQD(){},
+aUk:function aUk(d){this.a=d},
+abD:function abD(){}}
 B=c[0]
 A=a.updateHolder(c[79],A)
-A.a_A.prototype={
+A.a_z.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb8(){var y=this,x=y.z
 if(x===$){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"\u06a9\u0627\u067e\u06cc \u06a9\u0631\u06cc\u06ba"},
 gbj(){return"\u0686\u0633\u067e\u0627\u06ba \u06a9\u0631\u06cc\u06ba"},
 gbf(){return"\u0633\u0628 \u0645\u0646\u062a\u062e\u0628 \u06a9\u0631\u06cc\u06ba"}}
-A.abE.prototype={}
+A.abD.prototype={}
 var z=a.updateTypes([])
-A.aUj.prototype={
+A.aUk.prototype={
 $1(d){return A.bnZ(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.abE,B.a_)
-x(A.a_A,A.abE)
-x(A.aQC,B.b2)
-x(A.aUj,B.aU)
-y(A.abE,B.b0)})()
-B.b8(b.typeUniverse,JSON.parse('{"a_A":{"a_":[]}}'))};
-(a=>{a["YxdCCqaOhw+jl8eY1aM5luYrVWU="]=a.current})($__dart_deferred_initializers__);
+x(A.abD,B.a_)
+x(A.a_z,A.abD)
+x(A.aQD,B.b2)
+x(A.aUk,B.aU)
+y(A.abD,B.b0)})()
+B.b8(b.typeUniverse,JSON.parse('{"a_z":{"a_":[]}}'))};
+(a=>{a["bC5Gf2+EQcf6zxEcPenfDvFup1I="]=a.current})($__dart_deferred_initializers__);