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_52.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={
 b5n(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.ZP(v,u)
+u=new A.ZO(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="\u0938\u092d\u0940 \u091a\u0941\u0928\u0947
 break A}if("keyboardToolbar.done"===e){y="\u0939\u094b \u0917\u092f\u093e"
 break A}y=null
 break A}return y},
-bpw(d){return new A.aUx(d)},
-ZP:function ZP(d,e){var _=this
+bpw(d){return new A.aUy(d)},
+ZO:function ZO(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aPR:function aPR(){},
-aUx:function aUx(d){this.a=d},
-aaT:function aaT(){}}
+aPS:function aPS(){},
+aUy:function aUy(d){this.a=d},
+aaS:function aaS(){}}
 B=c[0]
 A=a.updateHolder(c[31],A)
-A.ZP.prototype={
+A.ZO.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb8(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aPR()}return x},
+x=y.z=new A.aPS()}return x},
 gbc(){return this.r}}
-A.aPR.prototype={
+A.aPS.prototype={
 gbi(){return"\u0915\u093e\u091f\u0947\u0902"},
 gbh(){return"\u0915\u0949\u092a\u0940 \u0915\u0930\u0947\u0902"},
 gbj(){return"\u092a\u0947\u0938\u094d\u091f \u0915\u0930\u0947\u0902"},
 gbf(){return"\u0938\u092d\u0940 \u091a\u0941\u0928\u0947\u0902"}}
-A.aaT.prototype={}
+A.aaS.prototype={}
 var z=a.updateTypes([])
-A.aUx.prototype={
+A.aUy.prototype={
 $1(d){return A.boc(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.aaT,B.a_)
-x(A.ZP,A.aaT)
-x(A.aPR,B.b2)
-x(A.aUx,B.aU)
-y(A.aaT,B.b0)})()
-B.b8(b.typeUniverse,JSON.parse('{"ZP":{"a_":[]}}'))};
-(a=>{a["36xEchLfMFEV9UPvR+PBu72nySU="]=a.current})($__dart_deferred_initializers__);
+x(A.aaS,B.a_)
+x(A.ZO,A.aaS)
+x(A.aPS,B.b2)
+x(A.aUy,B.aU)
+y(A.aaS,B.b0)})()
+B.b8(b.typeUniverse,JSON.parse('{"ZO":{"a_":[]}}'))};
+(a=>{a["e4X9IkexCsUAKL1v5o9n0eBemto="]=a.current})($__dart_deferred_initializers__);