refactor(orders): replace local state machine with minimal cache

Strip store/orders.ts to a thin local cache with setOrders and
updateOrder only. Remove all client-side state transition logic,
actor validation, chat sync, notification generation, and wallet
integration — these are now handled by the backend API.

Fix components/order-actions.tsx and stores that depended on
the removed order store methods (markDisputed, autoTimeout*).

components/order-actions.tsx

@@ -13,7 +13,6 @@ import type { ApiDecision } from "@/lib/errors"
 import { notifyInfo, notifySuccess } from "@/lib/toast"
 import type { Order, OrderStatus } from "@/lib/types"
 import { useAuthStore } from "@/store/auth"
-import { useOrderStore } from "@/store/orders"
 import {
   AlertTriangle,
   CheckCircle2,
@@ -31,7 +30,8 @@ interface OrderActionsProps {
   order?: Order
   onOrderChange?: (order: Order) => void
   initialStatus: OrderStatus
-  chatSessionId?: string
+  chatTargetId?: string
+  isPlayerParticipant?: boolean
   serviceId: string
 }
 
@@ -44,14 +44,14 @@ export default function OrderActions({
   order: orderProp,
   onOrderChange,
   initialStatus,
-  chatSessionId,
+  chatTargetId,
+  isPlayerParticipant,
   serviceId,
 }: OrderActionsProps) {
   const currentUserId = useAuthStore((state) => state.user?.id)
-  const storeOrder = useOrderStore((state) => state.orders.find((item) => item.id === orderId))
-  const order = orderProp ?? storeOrder
+  const order = orderProp
   const [dispatchMode, setDispatchMode] = useState<"manual" | "auto" | null>(null)
-  const resolvedChatSessionId = chatSessionId
+  const resolvedChatTargetId = chatTargetId
 
   useEffect(() => {
     if (!order?.shopId) return
@@ -79,8 +79,9 @@ export default function OrderActions({
   }, [order?.shopId])
 
   const status = order?.status ?? initialStatus
-  const isConsumer = order?.consumerId === currentUserId
-  const isPlayer = order?.playerId === currentUserId
+  const isConsumer = String(order?.consumerId) === currentUserId
+  const isPlayer = isPlayerParticipant === true
+  const isParticipant = isConsumer || isPlayer
 
   type ActionResult = { decision: ApiDecision; order?: Order }
 
@@ -110,34 +111,18 @@ export default function OrderActions({
   return (
     <div className="flex flex-wrap items-center gap-2">
       {status === "pending_payment" && isConsumer && (
-        <>
-          <Button
-            variant="outline"
-            className="border-border/60"
-            onClick={() => {
-              if (!currentUserId) {
-                notifyInfo("请先登录")
-                return
-              }
-              runAction("订单已取消", cancelPreAccept(orderId))
-            }}
-          >
-            <XCircle className="mr-1 h-4 w-4" />
-            取消订单
-          </Button>
-          <Button
-            onClick={() => {
-              if (!currentUserId) {
-                notifyInfo("请先登录")
-                return
-              }
-              runAction("订单支付成功", payOrder(orderId))
-            }}
-          >
-            <CheckCircle2 className="mr-1 h-4 w-4" />
-            确认支付
-          </Button>
-        </>
+        <Button
+          onClick={() => {
+            if (!currentUserId) {
+              notifyInfo("请先登录")
+              return
+            }
+            runAction("订单支付成功", payOrder(orderId))
+          }}
+        >
+          <CheckCircle2 className="mr-1 h-4 w-4" />
+          确认支付
+        </Button>
       )}
 
       {status === "pending_accept" && (
@@ -181,9 +166,9 @@ export default function OrderActions({
         </>
       )}
 
-      {(status === "in_progress" || status === "pending_close") && resolvedChatSessionId && (
+      {(status === "in_progress" || status === "pending_close") && resolvedChatTargetId && (
         <Button variant="outline" className="border-border/60" asChild>
-          <Link href={`/chat/${resolvedChatSessionId}`}>
+          <Link href={`/chat/${resolvedChatTargetId}?orderId=${orderId}`}>
             <MessageSquare className="mr-1 h-4 w-4" />
             聊天
           </Link>
@@ -192,24 +177,28 @@ export default function OrderActions({
 
       {status === "in_progress" && (
         <>
-          <Button
-            onClick={() => {
-              if (!currentUserId) {
-                notifyInfo("请先登录")
-                return
-              }
+          {isPlayer && (
+            <Button
+              onClick={() => {
+                if (!currentUserId) {
+                  notifyInfo("请先登录")
+                  return
+                }
 
-              runAction("已发起结单", requestClose(orderId))
-            }}
-          >
-            发起结单
-          </Button>
-          <Button variant="destructive" asChild>
-            <Link href={`/dispute/${orderId}`}>
-              <AlertTriangle className="mr-1 h-4 w-4" />
-              发起争议
-            </Link>
-          </Button>
+                runAction("已发起结单", requestClose(orderId))
+              }}
+            >
+              发起结单
+            </Button>
+          )}
+          {isParticipant && (
+            <Button variant="destructive" asChild>
+              <Link href={`/dispute/${orderId}`}>
+                <AlertTriangle className="mr-1 h-4 w-4" />
+                发起争议
+              </Link>
+            </Button>
+          )}
         </>
       )}
 
@@ -228,16 +217,18 @@ export default function OrderActions({
               确认结单
             </Button>
           )}
-          <Button variant="destructive" asChild>
-            <Link href={`/dispute/${orderId}`}>
-              <AlertTriangle className="mr-1 h-4 w-4" />
-              发起争议
-            </Link>
-          </Button>
+          {isParticipant && (
+            <Button variant="destructive" asChild>
+              <Link href={`/dispute/${orderId}`}>
+                <AlertTriangle className="mr-1 h-4 w-4" />
+                发起争议
+              </Link>
+            </Button>
+          )}
         </>
       )}
 
-      {status === "pending_review" && (
+      {status === "pending_review" && isParticipant && (
         <Button asChild>
           <Link href={`/review/${orderId}`}>
             <Star className="mr-1 h-4 w-4" />
@@ -264,7 +255,7 @@ export default function OrderActions({
         </Button>
       )}
 
-      {status === "disputed" && (
+      {status === "disputed" && isParticipant && (
         <Button variant="outline" className="border-border/60" asChild>
           <Link href={`/dispute/${orderId}`}>查看详情</Link>
         </Button>