build: 添加 Flutter Web 构建产物 + 修复部署脚本

- 本地构建 Flutter Web (flutter build web --release)
- 服务器无需 Flutter 环境，直接复制 build/web
- 修复 403 错误（build/web 目录为空导致）

flutter_monisuo/build/web/main.dart.js_24.part.js

@@ -0,0 +1,60 @@
+((a,b)=>{a[b]=a[b]||{}})(self,"$__dart_deferred_initializers__")
+$__dart_deferred_initializers__.current=function(a,b,c,$){var B,A={
+b0a(d,e,f){var y,x,w=null,v=new B.Y(),u=new B.Y()
+u=new A.XI(v,u)
+u.bc(d,w,e,w)
+y=u.a
+x=v.r
+x.toString
+y.r=x
+v.r=A.bkL(u)
+return u},
+bjr(d,e){var y
+A:{if("timePicker.hours"===e){y="Hores"
+break A}if("timePicker.minutes"===e){y="Minuts"
+break A}if("timePicker.seconds"===e){y="Segons"
+break A}if("timePicker.period"===e){y="Per\xedode"
+break A}if("timePicker.periodPlaceholder"===e){y="AM"
+break A}if("datePicker.selectDate"===e){y="Selecciona una data"
+break A}if("input.cut"===e){y="Retalla"
+break A}if("input.copy"===e){y="Copia"
+break A}if("input.paste"===e){y="Enganxa"
+break A}if("input.selectAll"===e){y="Selecciona-ho tot"
+break A}if("keyboardToolbar.done"===e){y="Fet"
+break A}y=null
+break A}return y},
+bkL(d){return new A.aQ4(d)},
+XI:function XI(d,e){var _=this
+_.r=d
+_.z=_.w=$
+_.a=e
+_.e=_.b=$},
+aKU:function aKU(){},
+aQ4:function aQ4(d){this.a=d},
+a8x:function a8x(){}}
+B=c[0]
+A=a.updateHolder(c[13],A)
+A.XI.prototype={
+h(d,e){var y=this.r.a5(e)
+return y==null?this.a.a5(e):y},
+gb3(){var y=this,x=y.z
+if(x===$){if(y.w===$)y.w=y
+x=y.z=new A.aKU()}return x},
+gb8(){return this.r}}
+A.aKU.prototype={
+gbf(){return"Retalla"},
+gbd(){return"Copia"},
+gbg(){return"Enganxa"},
+gba(){return"Selecciona-ho tot"}}
+A.a8x.prototype={}
+var z=a.updateTypes([])
+A.aQ4.prototype={
+$1(d){return A.bjr(this.a,d)},
+$S:2};(function inheritance(){var y=a.mixin,x=a.inherit
+x(A.a8x,B.W)
+x(A.XI,A.a8x)
+x(A.aKU,B.aW)
+x(A.aQ4,B.aO)
+y(A.a8x,B.aT)})()
+B.b1(b.typeUniverse,JSON.parse('{"XI":{"W":[]}}'))};
+(a=>{a["/4QCydsslgxvR20X9C3HQWmOjb0="]=a.current})($__dart_deferred_initializers__);