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_104.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={
 b63(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.a_v(v,u)
+u=new A.a_u(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="\u0e40\u0e25\u0e37\u0e2d\u0e01\u0e17\u0e31\
 break A}if("keyboardToolbar.done"===e){y="\u0e40\u0e2a\u0e23\u0e47\u0e08\u0e2a\u0e34\u0e49\u0e19"
 break A}y=null
 break A}return y},
-bq1(d){return new A.aV2(d)},
-a_v:function a_v(d,e){var _=this
+bq1(d){return new A.aV3(d)},
+a_u:function a_u(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aQx:function aQx(){},
-aV2:function aV2(d){this.a=d},
-abz:function abz(){}}
+aQy:function aQy(){},
+aV3:function aV3(d){this.a=d},
+aby:function aby(){}}
 B=c[0]
 A=a.updateHolder(c[74],A)
-A.a_v.prototype={
+A.a_u.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb8(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aQx()}return x},
+x=y.z=new A.aQy()}return x},
 gbc(){return this.r}}
-A.aQx.prototype={
+A.aQy.prototype={
 gbi(){return"\u0e15\u0e31\u0e14"},
 gbh(){return"\u0e04\u0e31\u0e14\u0e25\u0e2d\u0e01"},
 gbj(){return"\u0e27\u0e32\u0e07"},
 gbf(){return"\u0e40\u0e25\u0e37\u0e2d\u0e01\u0e17\u0e31\u0e49\u0e07\u0e2b\u0e21\u0e14"}}
-A.abz.prototype={}
+A.aby.prototype={}
 var z=a.updateTypes([])
-A.aV2.prototype={
+A.aV3.prototype={
 $1(d){return A.boI(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.abz,B.a_)
-x(A.a_v,A.abz)
-x(A.aQx,B.b2)
-x(A.aV2,B.aU)
-y(A.abz,B.b0)})()
-B.b8(b.typeUniverse,JSON.parse('{"a_v":{"a_":[]}}'))};
-(a=>{a["KbYMAS2iEstxvaqcw4s4lpxggt0="]=a.current})($__dart_deferred_initializers__);
+x(A.aby,B.a_)
+x(A.a_u,A.aby)
+x(A.aQy,B.b2)
+x(A.aV3,B.aU)
+y(A.aby,B.b0)})()
+B.b8(b.typeUniverse,JSON.parse('{"a_u":{"a_":[]}}'))};
+(a=>{a["7+HD/K8gPEBH1T9KdHAJOAeR8ds="]=a.current})($__dart_deferred_initializers__);