feat: 改进标签系统 — 新增品类/费用/强度/预约标签，timeSlot 参与选活动

- IdeaCategory 扩展 7→9，新增 experience（体验）和 nature（自然）
- 替换 outdoor boolean 为 costLevel/intensity/needsBooking 三个高价值字段
- AI 标注 prompt 同步更新，行程规划新增强度交替、费用平衡、预约提醒原则
- selectIdeasForSlots 重写为四优先级：timeSlot+category > category > timeSlot > 任意
- 前端想法卡片展示费用/强度/预约标签

src/components/BlindboxMyIdeas.tsx

@@ -16,6 +16,8 @@ import {
   Dumbbell,
   Landmark,
   Coffee,
+  Palette,
+  Mountain,
 } from "lucide-react";
 import type { IdeaCategory } from "@/types";
 
@@ -26,7 +28,9 @@ export interface MyIdea {
   category?: string | null;
   timeSlot?: string | null;
   estimatedMinutes?: number | null;
-  outdoor?: boolean | null;
+  costLevel?: string | null;
+  intensity?: string | null;
+  needsBooking?: boolean | null;
   searchQuery?: string | null;
   searchType?: string | null;
 }
@@ -42,6 +46,8 @@ const CATEGORY_CONFIG: Record<
   sports: { icon: Dumbbell, color: "text-amber-400", label: "运动" },
   culture: { icon: Landmark, color: "text-violet-400", label: "文化" },
   relaxation: { icon: Coffee, color: "text-teal-400", label: "休闲" },
+  experience: { icon: Palette, color: "text-rose-400", label: "体验" },
+  nature: { icon: Mountain, color: "text-lime-400", label: "自然" },
 };
 
 function CategoryBadge({ category }: { category?: string | null }) {
@@ -49,7 +55,7 @@ function CategoryBadge({ category }: { category?: string | null }) {
   const cfg = CATEGORY_CONFIG[category as IdeaCategory];
   if (!cfg) return <span className="text-sm">💡</span>;
   const Icon = cfg.icon;
-  return <Icon size={14} className={`shrink-0 ${cfg.color}`} />;
+  return <Icon size={14} className={`mt-0.5 shrink-0 ${cfg.color}`} />;
 }
 
 function DurationLabel({ minutes }: { minutes?: number | null }) {
@@ -62,6 +68,39 @@ function DurationLabel({ minutes }: { minutes?: number | null }) {
   );
 }
 
+const COST_LABELS: Record<string, string> = {
+  free: "免费",
+  budget: "实惠",
+  moderate: "适中",
+  premium: "高端",
+};
+
+const INTENSITY_LABELS: Record<string, string> = {
+  chill: "轻松",
+  moderate: "适度",
+  active: "活跃",
+};
+
+function TagPills({ idea }: { idea: MyIdea }) {
+  const pills: string[] = [];
+  if (idea.costLevel && COST_LABELS[idea.costLevel]) pills.push(COST_LABELS[idea.costLevel]);
+  if (idea.intensity && INTENSITY_LABELS[idea.intensity]) pills.push(INTENSITY_LABELS[idea.intensity]);
+  if (idea.needsBooking) pills.push("需预约");
+
+  if (pills.length === 0 && !idea.estimatedMinutes) return null;
+
+  return (
+    <div className="mt-1 flex flex-wrap items-center gap-1">
+      {pills.map((label) => (
+        <span key={label} className="rounded-md bg-elevated px-1.5 py-0.5 text-[10px] font-medium text-dim">
+          {label}
+        </span>
+      ))}
+      <DurationLabel minutes={idea.estimatedMinutes} />
+    </div>
+  );
+}
+
 function MyIdeaItem({
   idea,
   onEdit,
@@ -86,7 +125,7 @@ function MyIdeaItem({
   return (
     <motion.div
       layout
-      className="flex items-center gap-2 rounded-xl bg-surface/60 px-3 py-2.5 ring-1 ring-border/80"
+      className="flex items-start gap-2 rounded-xl bg-surface/60 px-3 py-2.5 ring-1 ring-border/80"
       initial={{ opacity: 0, y: -8 }}
       animate={{ opacity: 1, y: 0 }}
       exit={{ opacity: 0, x: -20 }}
@@ -119,8 +158,10 @@ function MyIdeaItem({
       ) : (
         <>
           <CategoryBadge category={idea.category} />
-          <p className="min-w-0 flex-1 truncate text-sm text-secondary">{idea.content}</p>
-          <DurationLabel minutes={idea.estimatedMinutes} />
+          <div className="min-w-0 flex-1">
+            <p className="truncate text-sm text-secondary">{idea.content}</p>
+            <TagPills idea={idea} />
+          </div>
           <button
             onClick={() => setEditing(true)}
             className="flex h-7 w-7 shrink-0 items-center justify-center rounded-lg text-muted transition-colors active:bg-elevated active:text-purple-400"

src/components/BlindboxPlan.tsx

@@ -30,7 +30,9 @@ interface BlindboxPlanProps {
 function guessCategory(activity: string): string | null {
   const lower = activity.toLowerCase();
   if (/吃|餐|饭|火锅|烧烤|面|菜|厨|食/.test(lower)) return "dining";
-  if (/公园|山|湖|海|户外|骑|徒步|露营/.test(lower)) return "outdoor";
+  if (/手作|工坊|烘焙|插花|陶艺|DIY|体验/.test(lower)) return "experience";
+  if (/露营|徒步|赶海|农场|自然|野|营地/.test(lower)) return "nature";
+  if (/公园|山|湖|海|户外|骑/.test(lower)) return "outdoor";
   if (/电影|KTV|密室|游戏|桌游|剧/.test(lower)) return "entertainment";
   if (/逛街|购物|商场|买/.test(lower)) return "shopping";
   if (/运动|健身|球|跑|游泳|瑜伽/.test(lower)) return "sports";