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_90.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={
 b5R(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.a_i(v,u)
+u=new A.a_h(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="\u067c\u0648\u0644 \u063a\u0648\u0631\u0647
 break A}if("keyboardToolbar.done"===e){y="\u0633\u0645 \u062f\u06cc"
 break A}y=null
 break A}return y},
-bp_(d){return new A.aU0(d)},
-a_i:function a_i(d,e){var _=this
+bp_(d){return new A.aU1(d)},
+a_h:function a_h(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aQk:function aQk(){},
-aU0:function aU0(d){this.a=d},
-abm:function abm(){}}
+aQl:function aQl(){},
+aU1:function aU1(d){this.a=d},
+abl:function abl(){}}
 B=c[0]
 A=a.updateHolder(c[61],A)
-A.a_i.prototype={
+A.a_h.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb8(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aQk()}return x},
+x=y.z=new A.aQl()}return x},
 gbc(){return this.r}}
-A.aQk.prototype={
+A.aQl.prototype={
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 gbj(){return"\u067e\u06cc\u0633\u067c \u06a9\u0693\u0626"},
 gbf(){return"\u067c\u0648\u0644 \u063a\u0648\u0631\u0647 \u06a9\u0693\u0626"}}
-A.abm.prototype={}
+A.abl.prototype={}
 var z=a.updateTypes([])
-A.aU0.prototype={
+A.aU1.prototype={
 $1(d){return A.bnG(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.abm,B.a_)
-x(A.a_i,A.abm)
-x(A.aQk,B.b2)
-x(A.aU0,B.aU)
-y(A.abm,B.b0)})()
-B.b8(b.typeUniverse,JSON.parse('{"a_i":{"a_":[]}}'))};
-(a=>{a["vuZWMw2EHhH16Pnxr2/7MdTukj0="]=a.current})($__dart_deferred_initializers__);
+x(A.abl,B.a_)
+x(A.a_h,A.abl)
+x(A.aQl,B.b2)
+x(A.aU1,B.aU)
+y(A.abl,B.b0)})()
+B.b8(b.typeUniverse,JSON.parse('{"a_h":{"a_":[]}}'))};
+(a=>{a["JZrJOoE54jxqh60b0lzpazbgotI="]=a.current})($__dart_deferred_initializers__);