feat: wire post interactions and persist favorites state

app/(main)/post/new/page.tsx

@@ -20,7 +20,7 @@ import {
   SelectValue,
 } from "@/components/ui/select"
 import { Textarea } from "@/components/ui/textarea"
-import { mockPosts } from "@/lib/mock"
+import { mockOrders, mockPosts } from "@/lib/mock"
 import { useRequireAuth } from "@/lib/use-require-auth"
 
 const postSchema = z.object({
@@ -37,6 +37,7 @@ export default function NewPostPage() {
   const [selectedTags, setSelectedTags] = useState<string[]>([])
   const [imageCount, setImageCount] = useState(0)
   const [selectedQuotePostId, setSelectedQuotePostId] = useState<string | undefined>(undefined)
+  const [selectedOrderId, setSelectedOrderId] = useState<string | undefined>(undefined)
 
   const {
     register,
@@ -95,12 +96,18 @@ export default function NewPostPage() {
             {postType === "show_order" && (
               <div className="space-y-2">
                 <Label>关联订单</Label>
-                <Select>
+                <Select value={selectedOrderId} onValueChange={setSelectedOrderId}>
                   <SelectTrigger>
                     <SelectValue placeholder="选择要展示的订单" />
                   </SelectTrigger>
                   <SelectContent>
-                    <SelectItem value="ord2">英雄联盟上分陪玩 · 已完成</SelectItem>
+                    {mockOrders
+                      .filter((order) => order.status === "completed")
+                      .map((order) => (
+                        <SelectItem key={order.id} value={order.id}>
+                          {order.service.title} · {order.playerName}
+                        </SelectItem>
+                      ))}
                   </SelectContent>
                 </Select>
               </div>
@@ -210,7 +217,11 @@ export default function NewPostPage() {
             </div>
 
             <div className="flex gap-2">
-              <Button type="submit" className="flex-1" disabled={isSubmitting}>
+              <Button
+                type="submit"
+                className="flex-1"
+                disabled={isSubmitting || (postType === "show_order" && !selectedOrderId)}
+              >
                 {isSubmitting ? "发布中..." : "发布"}
               </Button>
               <Button type="button" variant="outline" asChild>