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_84.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={
 b5L(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.a_c(v,u)
+u=new A.a_b(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\u092c\u0948 \u091a\u092f\u0928 \u091
 break A}if("keyboardToolbar.done"===e){y="\u0938\u092e\u094d\u092a\u0928\u094d\u0928"
 break A}y=null
 break A}return y},
-bp5(d){return new A.aU6(d)},
-a_c:function a_c(d,e){var _=this
+bp5(d){return new A.aU7(d)},
+a_b:function a_b(d,e){var _=this
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 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aQe:function aQe(){},
-aU6:function aU6(d){this.a=d},
-abg:function abg(){}}
+aQf:function aQf(){},
+aU7:function aU7(d){this.a=d},
+abf:function abf(){}}
 B=c[0]
 A=a.updateHolder(c[55],A)
-A.a_c.prototype={
+A.a_b.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb8(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aQe()}return x},
+x=y.z=new A.aQf()}return x},
 gbc(){return this.r}}
-A.aQe.prototype={
+A.aQf.prototype={
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 gbj(){return"\u091f\u093e\u0901\u0938\u094d\u0928\u0941\u0939\u094b\u0938\u094d"},
 gbf(){return"\u0938\u092c\u0948 \u091a\u092f\u0928 \u0917\u0930\u094d\u0928\u0941\u0939\u094b\u0938\u094d"}}
-A.abg.prototype={}
+A.abf.prototype={}
 var z=a.updateTypes([])
-A.aU6.prototype={
+A.aU7.prototype={
 $1(d){return A.bnM(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.abg,B.a_)
-x(A.a_c,A.abg)
-x(A.aQe,B.b2)
-x(A.aU6,B.aU)
-y(A.abg,B.b0)})()
-B.b8(b.typeUniverse,JSON.parse('{"a_c":{"a_":[]}}'))};
-(a=>{a["nmcyU6Bwj5b9+A8M+ZYuTYVc1n0="]=a.current})($__dart_deferred_initializers__);
+x(A.abf,B.a_)
+x(A.a_b,A.abf)
+x(A.aQf,B.b2)
+x(A.aU7,B.aU)
+y(A.abf,B.b0)})()
+B.b8(b.typeUniverse,JSON.parse('{"a_b":{"a_":[]}}'))};
+(a=>{a["rrxda0uQt/nfVn7AifCRJOmlLD8="]=a.current})($__dart_deferred_initializers__);