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_69.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={
 b5x(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.ZZ(v,u)
+u=new A.ZY(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="\u1787\u17d2\u179a\u17be\u179f\u179a\u17be\
 break A}if("keyboardToolbar.done"===e){y="\u179a\u17bd\u1785\u179a\u17b6\u179b\u17cb"
 break A}y=null
 break A}return y},
-bpl(d){return new A.aUm(d)},
-ZZ:function ZZ(d,e){var _=this
+bpl(d){return new A.aUn(d)},
+ZY:function ZY(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aQ0:function aQ0(){},
-aUm:function aUm(d){this.a=d},
-ab2:function ab2(){}}
+aQ1:function aQ1(){},
+aUn:function aUn(d){this.a=d},
+ab1:function ab1(){}}
 B=c[0]
 A=a.updateHolder(c[41],A)
-A.ZZ.prototype={
+A.ZY.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb8(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aQ0()}return x},
+x=y.z=new A.aQ1()}return x},
 gbc(){return this.r}}
-A.aQ0.prototype={
+A.aQ1.prototype={
 gbi(){return"\u1780\u17b6\u178f\u17cb"},
 gbh(){return"\u1785\u1798\u17d2\u179b\u1784"},
 gbj(){return"\u1794\u17b7\u1791\u1797\u17d2\u1787\u17b6\u1794\u17cb"},
 gbf(){return"\u1787\u17d2\u179a\u17be\u179f\u179a\u17be\u179f\u1791\u17b6\u17c6\u1784\u17a2\u179f\u17cb"}}
-A.ab2.prototype={}
+A.ab1.prototype={}
 var z=a.updateTypes([])
-A.aUm.prototype={
+A.aUn.prototype={
 $1(d){return A.bo1(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.ab2,B.a_)
-x(A.ZZ,A.ab2)
-x(A.aQ0,B.b2)
-x(A.aUm,B.aU)
-y(A.ab2,B.b0)})()
-B.b8(b.typeUniverse,JSON.parse('{"ZZ":{"a_":[]}}'))};
-(a=>{a["pygz/CwueQ1Hb0uiBmPcCrAcltI="]=a.current})($__dart_deferred_initializers__);
+x(A.ab1,B.a_)
+x(A.ZY,A.ab1)
+x(A.aQ1,B.b2)
+x(A.aUn,B.aU)
+y(A.ab1,B.b0)})()
+B.b8(b.typeUniverse,JSON.parse('{"ZY":{"a_":[]}}'))};
+(a=>{a["bVnhfGZ2c+KIAUaj6TCCjRzmmcs="]=a.current})($__dart_deferred_initializers__);