feat(admin): redesign GoodsView with dual-tree UX, filter bar, inline CRUD

- Two-line good nodes with country + tag chips, hover tooltip
- Resizable dual-tree with fixed-height panels (no node overlap)
- Filter bar: search, country filter, tag filter (multi-select with rename)
- Mode switch (品类/国家) pushed to right via spacer
- Inline create country/tag in edit & config modals via quick-create buttons
- Right tree node height auto-fix for locate highlight
- Filter dropdown styles in global scope for teleported popper
- Backend: multi-tag (GoodTag junction), goodImage column, origin goods tree API
- Admin response interceptor unwraps {data, success} envelope
- Simplified sidebar to single 商品管理 entry with tabs
- SyncView simplified to product sync only

docs/superpowers/specs/2026-06-21-goods-redesign.md

@@ -0,0 +1,92 @@
+# Goods Management Redesign
+
+## Date: 2026-06-21
+
+## Problem
+
+1. **Origin Good name not displayed**: GoodsView doesn't show the origin product name/image/price
+2. **Single tag per good**: Current schema only allows one tag per good via `goods.tag_id` FK
+3. **Easy to miss unconfigured origin products**: Flat paginated table with no visibility into which origin products have been configured vs not
+
+## Solution
+
+### 1. Multi-Tag Support (GoodTag Junction Table)
+
+**Schema change:**
+- New `good_tags` junction table: `(good_id, tag_id)` composite PK
+- Migrate existing `goods.tag_id` data into `good_tags`
+- Set `goods.tag_id` to nullable (will be dropped in a future migration)
+
+**Backend:**
+- `CreateGoodDto`: `tagIds: number[]` (replaces `tagId`)
+- `UpdateGoodDto`: `tagIds?: number[]` (replaces `tagId`)
+- `BatchCreateGoodDto`: `tagIds?: number[]` (replaces `tagId`)
+- `QueryGoodDto`: `tagId` filter queries `tags.some` instead of direct FK
+- `GoodsService.create/update`: manage `good_tags` records in transaction
+- `GOOD_INCLUDE`: include `tags: { include: { tag: true } }`
+
+### 2. Origin Goods Tree API
+
+New endpoint: `GET /origin-goods/tree`
+
+Returns origin goods grouped by SDS category, with configuration status:
+
+```json
+[
+  {
+    "sdsCategoryId": "4185",
+    "categoryName": "（包邮）180g纯棉T恤-单面印花",
+    "originGoods": [
+      {
+        "id": "123",
+        "goodName": "产品A",
+        "goodImage": "https://...",
+        "goodPrice": "12.50",
+        "sdsGoodId": "p-123",
+        "configuredCount": 2,
+        "configuredCountries": ["美国", "英国"]
+      }
+    ]
+  }
+]
+```
+
+Origin goods without `sdsCategoryId` are grouped under "未分类".
+
+### 3. Admin UI: Dual Tree Layout
+
+```
+┌──────────────────────────────────────────────────────────┐
+│  [搜索原产品]                          [210/439 已配置]   │
+├───────────────────┬─────────────────────────────────────┤
+│  首页分类树        │  原产品分类树                        │
+│                   │                                     │
+│  ▼ 美国            │  ▼ （包邮）180g纯棉T恤               │
+│    ▼ T恤          │    ✓ 产品A [美国,英国]               │
+│    ▼ 卫衣         │    ✗ 产品B [未配置]                  │
+│  ▼ 英国            │  ▼ 未分类                           │
+│  ▼ 韩国            │    ✗ 产品C [未配置]                  │
+├───────────────────┴─────────────────────────────────────┤
+│  详情/操作区域                                           │
+│  - 选左侧分类: 该分类下所有 goods 表格                    │
+│  - 选右侧原产品: 该原产品的配置详情 + 快捷配置按钮         │
+│  - 多标签选择 (el-select multiple)                       │
+└──────────────────────────────────────────────────────────┘
+```
+
+**Key interactions:**
+- Left tree click: filter goods by selected category
+- Right tree click: show origin good detail + all its goods configs
+- Right tree badges: ✓ configured / ✗ unconfigured
+- Quick configure: select country+category+tags, click origin goods to batch create
+- Statistics bar: configured/total count
+
+### 4. Data Migration
+
+```sql
+-- Step 1: Create good_tags table
+-- Step 2: Copy existing tag_id data
+INSERT INTO good_tags (good_id, tag_id, created_at)
+  SELECT good_id, tag_id, NOW() FROM goods WHERE tag_id IS NOT NULL;
+-- Step 3: Good.tag_id becomes nullable (already nullable)
+```