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_97.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={
 b5Y(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.a_p(v,u)
+u=new A.a_o(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="Zgjidh t\xeb gjitha"
 break A}if("keyboardToolbar.done"===e){y="U krye"
 break A}y=null
 break A}return y},
-boS(d){return new A.aTT(d)},
-a_p:function a_p(d,e){var _=this
+boS(d){return new A.aTU(d)},
+a_o:function a_o(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aQr:function aQr(){},
-aTT:function aTT(d){this.a=d},
-abt:function abt(){}}
+aQs:function aQs(){},
+aTU:function aTU(d){this.a=d},
+abs:function abs(){}}
 B=c[0]
 A=a.updateHolder(c[68],A)
-A.a_p.prototype={
+A.a_o.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb8(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aQr()}return x},
+x=y.z=new A.aQs()}return x},
 gbc(){return this.r}}
-A.aQr.prototype={
+A.aQs.prototype={
 gbi(){return"Prit"},
 gbh(){return"Kopjo"},
 gbj(){return"Ngjit"},
 gbf(){return"Zgjidh t\xeb gjitha"}}
-A.abt.prototype={}
+A.abs.prototype={}
 var z=a.updateTypes([])
-A.aTT.prototype={
+A.aTU.prototype={
 $1(d){return A.bny(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.abt,B.a_)
-x(A.a_p,A.abt)
-x(A.aQr,B.b2)
-x(A.aTT,B.aU)
-y(A.abt,B.b0)})()
-B.b8(b.typeUniverse,JSON.parse('{"a_p":{"a_":[]}}'))};
-(a=>{a["+Ssvm8urFbebZCKBzhkaz0c3XrQ="]=a.current})($__dart_deferred_initializers__);
+x(A.abs,B.a_)
+x(A.a_o,A.abs)
+x(A.aQs,B.b2)
+x(A.aTU,B.aU)
+y(A.abs,B.b0)})()
+B.b8(b.typeUniverse,JSON.parse('{"a_o":{"a_":[]}}'))};
+(a=>{a["StMPaoU4AVaqc9W/ns37br6hBV8="]=a.current})($__dart_deferred_initializers__);