feat(client): 库存三态 UI——抽屉挂售 switch + 三态徽章/筛选/已售 KPI 卡

- 新组件 DsSwitch（原型 atoms .switch 对照，L1 已登记：38×22 pill，on=primary）
- 商品抽屉状态行：三态徽章后跟挂售 switch（在售⇄库存 即时生效，已售只读，
  readonly 禁用），桌面 drawer / 移动 sheet 同组件
- 列表状态列/卡片徽章三态化（在售绿/库存蓝/已售灰，icons BADGE_ICON 补两词）；
  状态筛选改「全部/在售/库存/已售」走服务端；预警缺货退出状态维度由数量染色承担
- KPI 第四卡「缺货预警」→「已售」（sold_count，点击筛选已售）
- 原型同步：atoms/index 登记 switch 与 b-库存/b-已售、inventory 两屏三态数据、
  抽屉状态行 switch；12 道 ds 闸 + L1 同源闸全过
- golden 重录 ×9（三态徽章 + 已售卡形态）

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JJ1g8XV1YhhmHRzhwWEW7o

client/lib/models/inventory.dart

@@ -9,6 +9,9 @@ class Inventory {
   final int? productId;
   final int? stockInItemId;
   final double quantity;
+
+  /// 库存三态（2026-07-07）：stock=库存 / on_sale=在售(公开酒单) / sold=已售(卖光留痕)
+  final String status;
   final String productCode;
   final String productName;
   final String series;
@@ -31,6 +34,7 @@ class Inventory {
     this.productId,
     this.stockInItemId,
     required this.quantity,
+    this.status = 'stock',
     this.productCode = '',
     this.productName = '',
     this.series = '',
@@ -54,6 +58,7 @@ class Inventory {
         productId: (json['product_id'] as num?)?.toInt(),
         stockInItemId: (json['stock_in_item_id'] as num?)?.toInt(),
         quantity: (json['quantity'] as num).toDouble(),
+        status: json['status'] as String? ?? 'stock',
         productCode: json['product_code'] as String? ?? '',
         productName: json['product_name'] as String? ?? '',
         series: json['series'] as String? ?? '',
@@ -77,6 +82,7 @@ class InventorySummary {
   final int skuCount;
   final double stockValue;
   final double inStockQty;
+  final int soldCount; // 已售留痕行数（status=sold）
   final int shortageCount;
   final int warningCount;
   // 月初快照（KPI 环比）：由 inventory_logs 反推
@@ -87,6 +93,7 @@ class InventorySummary {
     this.skuCount = 0,
     this.stockValue = 0,
     this.inStockQty = 0,
+    this.soldCount = 0,
     this.shortageCount = 0,
     this.warningCount = 0,
     this.lastMonthSku = 0,
@@ -97,6 +104,7 @@ class InventorySummary {
         skuCount: (j['sku_count'] as num?)?.toInt() ?? 0,
         stockValue: (j['stock_value'] as num?)?.toDouble() ?? 0,
         inStockQty: (j['in_stock_qty'] as num?)?.toDouble() ?? 0,
+        soldCount: (j['sold_count'] as num?)?.toInt() ?? 0,
         shortageCount: (j['shortage_count'] as num?)?.toInt() ?? 0,
         warningCount: (j['warning_count'] as num?)?.toInt() ?? 0,
         lastMonthSku: (j['last_month_sku'] as num?)?.toInt() ?? 0,

client/lib/providers/inventory_provider.dart

@@ -30,6 +30,7 @@ class InventoryListNotifier extends AsyncNotifier<PageResult<Inventory>> {
   int? _warehouseId;
   String _keyword = '';
   String _code = ''; // 商品编码独立筛选（原型 codeInput）
+  String _status = ''; // 三态筛选（空=后端默认排除已售）
   List<String> _series = [];
   List<String> _spec = [];
   PageResult<Inventory>? _cache;
@@ -53,6 +54,7 @@ class InventoryListNotifier extends AsyncNotifier<PageResult<Inventory>> {
           warehouseId: _warehouseId,
           keyword: _keyword.isEmpty ? null : _keyword,
           code: _code.isEmpty ? null : _code,
+          status: _status.isEmpty ? null : _status,
           series: _series.isEmpty ? null : _series,
           spec: _spec.isEmpty ? null : _spec,
           page: _page,
@@ -89,6 +91,12 @@ class InventoryListNotifier extends AsyncNotifier<PageResult<Inventory>> {
     reload();
   }
 
+  void setStatus(String status) {
+    _status = status;
+    _page = 1;
+    reload();
+  }
+
   void setSeries(List<String> series) {
     _series = series;
     _page = 1;

client/lib/repositories/inventory_repository.dart

@@ -16,6 +16,7 @@ class InventoryRepository {
     String? code,
     List<String>? series,
     List<String>? spec,
+    String? status, // 三态筛选：stock/on_sale/sold（逗号可多值）；空=后端默认（排除已售）
     int page = 1,
     int pageSize = 50,
   }) async {
@@ -29,6 +30,7 @@ class InventoryRepository {
         if (code != null && code.isNotEmpty) 'code': code,
         if (series != null && series.isNotEmpty) 'series': series.join(','),
         if (spec != null && spec.isNotEmpty) 'spec': spec.join(','),
+        if (status != null && status.isNotEmpty) 'status': status,
       };
       final resp = await _client.get('/inventory', params: params);
       return PageResult.fromJson(
@@ -67,6 +69,18 @@ class InventoryRepository {
     }
   }
 
+  /// 库存⇄在售 挂售切换（status 仅收 stock/on_sale；sold 由出库流程专属）
+  Future<void> updateStatus(int id, String status) async {
+    try {
+      await _client.put('/inventory/$id/status', data: {'status': status});
+    } on DioException catch (e) {
+      throw AppException(
+        e.response?.data?['error'] as String? ?? '状态更新失败',
+        statusCode: e.response?.statusCode,
+      );
+    }
+  }
+
   Future<void> updateRemark(int id, String remark) async {
     try {
       await _client.put('/inventory/$id/remark', data: {'remark': remark});

client/lib/screens/inventory/inventory_list_screen.dart

@@ -38,12 +38,19 @@ class _InventoryListScreenState extends ConsumerState<InventoryListScreen> {
   Set<String> _filterWarehouse = {};
   Set<String> _filterSpec = {};
   Set<String> _filterSeries = {};
-  // 库存状态前端筛选（派生自 qty vs 安全库存）：全部/在售/预警/缺货
+  // 库存三态筛选（2026-07-07 status 落库，服务端过滤）：全部/在售/库存/已售；
+  // 默认「全部」= 后端排除已售（已售仅点已售卡/筛选时显示）。预警缺货退出状态维度。
   String _statusFilter = '全部';
+  static const _statusParam = {
+    '全部': '',
+    '在售': 'on_sale',
+    '库存': 'stock',
+    '已售': 'sold',
+  };
   Set<String>? _hiddenCols; // null = 尚未载入本地存档
 
   static const _screenId = 'inventory_list';
-  static const _statusOptions = ['全部', '在售', '预警', '缺货'];
+  static const _statusOptions = ['全部', '在售', '库存', '已售'];
 
   // 列序照原型 inventory.html COLS：商品/规格/系列/批次/库存/成本价/单价/生产/入库/供应商/状态/操作。
   // 成本价=入库进价(unitPrice)，总价=库存×成本价（2026-07-03 用户拍板：原「单价/参考售价」列换掉）。
@@ -95,13 +102,21 @@ class _InventoryListScreenState extends ConsumerState<InventoryListScreen> {
     n.setKeyword('');
     n.setSpec([]);
     n.setSeries([]);
+    n.setStatus('');
   }
 
-  String _statusOf(Inventory i) => i.quantity == 0
-      ? '缺货'
-      : (i.minStock != null && i.quantity < i.minStock!)
-          ? '预警'
-          : '在售';
+  // 三态落库后的显示标签（status 列真相源）
+  String _statusOf(Inventory i) => switch (i.status) {
+        'on_sale' => '在售',
+        'sold' => '已售',
+        _ => '库存',
+      };
+
+  // 低库存提示（预警/缺货退出状态列后由数量染色承担）
+  bool _isLowStock(Inventory i) =>
+      i.status != 'sold' &&
+      (i.quantity == 0 ||
+          (i.minStock != null && i.quantity < i.minStock!));
 
   void _openEditor(Inventory item) {
     if (item.productId == null) return;
@@ -112,9 +127,20 @@ class _InventoryListScreenState extends ConsumerState<InventoryListScreen> {
       unit: item.unit,
       cost: item.unitPrice,
       status: _statusOf(item),
+      inventoryId: item.id,
+      inventoryStatus: item.status,
+      onStatusChanged: () =>
+          ref.read(inventoryListProvider.notifier).reload(),
     );
   }
 
+  void _applyStatusFilter(String label) {
+    setState(() => _statusFilter = label);
+    ref
+        .read(inventoryListProvider.notifier)
+        .setStatus(_statusParam[label] ?? '');
+  }
+
   // 成本仅管理员可见（与出库同口径）：非管理员隐藏成本价/总价列、卡片单价、货值 KPI。
   bool get _isAdmin => ref.watch(isAdminProvider);
   bool _colAllowed(ColDef c) =>
@@ -149,7 +175,7 @@ class _InventoryListScreenState extends ConsumerState<InventoryListScreen> {
           DsMenuItem(value: s, label: s, selected: s == _statusFilter),
       ],
     );
-    if (v != null && mounted) setState(() => _statusFilter = v);
+    if (v != null && mounted) _applyStatusFilter(v);
   }
 
   // ── 多选漏斗（规格/系列/仓库） ──
@@ -223,7 +249,7 @@ class _InventoryListScreenState extends ConsumerState<InventoryListScreen> {
                     selected: _statusFilter == s,
                     caret: false,
                     onTap: () {
-                      setState(() => _statusFilter = s);
+                      _applyStatusFilter(s);
                       setSheet(() {});
                     }),
             ]),
@@ -512,12 +538,12 @@ class _InventoryListScreenState extends ConsumerState<InventoryListScreen> {
     return '¥$buf${parts.length > 1 ? '.${parts[1]}' : ''}';
   }
 
-  /// 状态徽章（DsBadge）：派生 qty vs 安全库存 → 在售/预警/缺货。
+  /// 状态徽章（DsBadge）：三态落库 status 真相源。
   Widget _dsStatusBadge(Inventory item) {
-    return switch (_statusOf(item)) {
-      '缺货' => const DsBadge('缺货', tone: DsBadgeTone.danger),
-      '预警' => const DsBadge('预警', tone: DsBadgeTone.warn),
-      _ => const DsBadge('在售', tone: DsBadgeTone.ok),
+    return switch (item.status) {
+      'on_sale' => const DsBadge('在售', tone: DsBadgeTone.ok),
+      'sold' => const DsBadge('已售', tone: DsBadgeTone.muted),
+      _ => const DsBadge('库存', tone: DsBadgeTone.info),
     };
   }
 
@@ -526,11 +552,12 @@ class _InventoryListScreenState extends ConsumerState<InventoryListScreen> {
   Widget _inventoryCard(Inventory item) {
     final t = context.tokens;
     final status = _statusOf(item);
-    final qtyColor = switch (status) {
-      '缺货' => t.danger,
-      '预警' => t.warn,
-      _ => t.heading,
-    };
+    // 低库存数量染色（预警/缺货退出状态维度后由数量承担）
+    final qtyColor = !_isLowStock(item)
+        ? t.heading
+        : item.quantity == 0
+            ? t.danger
+            : t.warn;
     final sub = [
       if (item.productCode.isNotEmpty) item.productCode,
       if (item.spec.isNotEmpty) item.spec,
@@ -626,11 +653,11 @@ class _InventoryListScreenState extends ConsumerState<InventoryListScreen> {
                 ?.map((s) => s.name)
                 .toList() ??
             [];
+        // 状态筛选已走服务端（setStatus）；仓库仍为当前页客户端筛选
         final filteredItems = items
             .where((i) =>
-                (_filterWarehouse.isEmpty ||
-                    _filterWarehouse.contains(i.warehouseName)) &&
-                (_statusFilter == '全部' || _statusOf(i) == _statusFilter))
+                _filterWarehouse.isEmpty ||
+                _filterWarehouse.contains(i.warehouseName))
             .toList();
 
         final hidden = _hiddenCols ?? <String>{};
@@ -739,12 +766,12 @@ class _InventoryListScreenState extends ConsumerState<InventoryListScreen> {
                           deltaTone: _mTone(qtyTone),
                         ),
                         MKpiItem(
-                          label: '缺货预警',
-                          value: '${summary?.shortageCount ?? 0}',
+                          label: '已售',
+                          value: '${summary?.soldCount ?? 0}',
                           delta: '需补货 ${summary?.warningCount ?? 0} 项',
                           deltaTone: MKpiDeltaTone.warn,
-                          selected: _statusFilter == '缺货',
-                          onTap: () => setState(() => _statusFilter = '缺货'),
+                          selected: _statusFilter == '已售',
+                          onTap: () => _applyStatusFilter('已售'),
                         ),
                       ]),
                     );
@@ -780,15 +807,15 @@ class _InventoryListScreenState extends ConsumerState<InventoryListScreen> {
                       deltaTone: qtyTone,
                     ),
                     DsKpi(
-                      title: '缺货预警 · 点击筛选',
-                      value: '${summary?.shortageCount ?? 0}',
-                      icon: LucideIcons.triangleAlert,
+                      title: '已售 · 点击筛选',
+                      value: '${summary?.soldCount ?? 0}',
+                      icon: LucideIcons.check,
                       tone: DsKpiTone.alert,
                       delta: '需补货 ${summary?.warningCount ?? 0} 项',
                       deltaTone: (summary?.warningCount ?? 0) > 0
                           ? DsKpiDelta.down
                           : DsKpiDelta.neutral,
-                      onTap: () => setState(() => _statusFilter = '缺货'),
+                      onTap: () => _applyStatusFilter('已售'),
                     ),
                   ];
                   final row = <Widget>[];

client/lib/widgets/ds/ds_switch.dart

@@ -0,0 +1,55 @@
+// widgets/ds/ds_switch.dart — 原型 atoms.css .switch 的 Flutter 对照（2026-07-07 登记）。
+// 38×22 pill 轨道 + 18px 圆点滑块：on=primary / off=border / disabled 45% 透明。
+// 用于布尔即时生效场景（库存⇄在售挂售切换）；不同于 Material Switch 的尺寸与配色。
+import 'package:flutter/material.dart';
+
+import '../../core/theme/context_tokens.dart';
+
+class DsSwitch extends StatelessWidget {
+  final bool value;
+  final ValueChanged<bool>? onChanged; // null = disabled
+  const DsSwitch({super.key, required this.value, this.onChanged});
+
+  @override
+  Widget build(BuildContext context) {
+    final t = context.tokens;
+    final enabled = onChanged != null;
+    return Semantics(
+      toggled: value,
+      button: true,
+      child: GestureDetector(
+        onTap: enabled ? () => onChanged!(!value) : null,
+        child: Opacity(
+          opacity: enabled ? 1 : .45,
+          child: AnimatedContainer(
+            duration: const Duration(milliseconds: 180),
+            width: 38,
+            height: 22,
+            padding: const EdgeInsets.all(2),
+            decoration: BoxDecoration(
+              color: value ? t.primary : t.border,
+              borderRadius: BorderRadius.circular(999),
+            ),
+            child: AnimatedAlign(
+              duration: const Duration(milliseconds: 180),
+              curve: Curves.easeOut,
+              alignment: value ? Alignment.centerRight : Alignment.centerLeft,
+              child: Container(
+                width: 18,
+                height: 18,
+                decoration: BoxDecoration(
+                  color: t.surface,
+                  shape: BoxShape.circle,
+                  boxShadow: [
+                    BoxShadow(
+                        color: t.shadow, blurRadius: 3, offset: const Offset(0, 1)),
+                  ],
+                ),
+              ),
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}

client/lib/widgets/ds/status_icon_map.dart

@@ -5,8 +5,10 @@ import 'package:flutter/widgets.dart';
 import 'package:lucide_icons_flutter/lucide_icons.dart';
 
 const Map<String, IconData> kStatusIcons = {
-  // 库存状态
+  // 库存状态（三态落库 2026-07-07：在售/库存/已售；预警/缺货为数量派生提示）
   '在售': LucideIcons.shoppingCart, // i-cart
+  '库存': LucideIcons.box, // i-box
+  '已售': LucideIcons.check, // i-check
   '预警': LucideIcons.triangleAlert, // i-alert
   '缺货': LucideIcons.x, // i-close
   // 单据状态

client/lib/widgets/product_editor_drawer.dart

@@ -20,10 +20,12 @@ import '../core/theme/app_dims.g.dart';
 import '../core/theme/context_tokens.dart';
 import '../models/product.dart';
 import '../models/product_image.dart';
+import '../providers/inventory_provider.dart' show inventoryRepositoryProvider;
 import '../providers/product_option_provider.dart';
 import '../providers/product_provider.dart';
 import '../providers/shop_provider.dart' show shopInfoProvider;
 import 'ds/ds_atoms.dart';
+import 'ds/ds_switch.dart';
 import 'ds/grid_combo_cell.dart';
 import 'ds/m_sheet.dart';
 import 'searchable_option_field.dart';
@@ -41,7 +43,10 @@ Future<void> showProductEditorDrawer(
   double? qty,
   String? unit,
   double? cost,
-  String? status, // 在售 / 预警 / 缺货
+  String? status, // 在售 / 库存 / 已售（三态显示标签）
+  int? inventoryId, // 库存行 id：非空时状态行显示挂售 switch
+  String? inventoryStatus, // stock / on_sale / sold（switch 初始态）
+  VoidCallback? onStatusChanged, // switch 切换成功后回调（列表刷新）
 }) {
   // 窄屏：底部 sheet 形态（原型 m-inventory openItem 内嵌公开页编辑）
   if (context.isMobile) {
@@ -56,7 +61,10 @@ Future<void> showProductEditorDrawer(
             qty: qty,
             unit: unit,
             cost: cost,
-            status: status),
+            status: status,
+            inventoryId: inventoryId,
+            inventoryStatus: inventoryStatus,
+            onStatusChanged: onStatusChanged),
       ),
     );
   }
@@ -83,7 +91,10 @@ Future<void> showProductEditorDrawer(
                   qty: qty,
                   unit: unit,
                   cost: cost,
-                  status: status),
+                  status: status,
+                  inventoryId: inventoryId,
+                  inventoryStatus: inventoryStatus,
+                  onStatusChanged: onStatusChanged),
             ),
           ),
         ),
@@ -106,12 +117,18 @@ class _ProductEditorDrawer extends ConsumerStatefulWidget {
   final String? unit;
   final double? cost;
   final String? status;
+  final int? inventoryId;
+  final String? inventoryStatus;
+  final VoidCallback? onStatusChanged;
   const _ProductEditorDrawer({
     required this.productId,
     this.qty,
     this.unit,
     this.cost,
     this.status,
+    this.inventoryId,
+    this.inventoryStatus,
+    this.onStatusChanged,
   });
 
   @override
@@ -125,6 +142,32 @@ class _ProductEditorDrawerState extends ConsumerState<_ProductEditorDrawer> {
   bool _uploading = false;
   bool _saving = false;
 
+  // 库存三态挂售 switch（stock⇄on_sale；sold 只读无 switch）
+  late String? _invStatus = widget.inventoryStatus;
+  bool _statusSaving = false;
+
+  Future<void> _toggleOnSale(bool on) async {
+    final id = widget.inventoryId;
+    if (id == null || _statusSaving) return;
+    final next = on ? 'on_sale' : 'stock';
+    final prev = _invStatus;
+    setState(() {
+      _invStatus = next;
+      _statusSaving = true;
+    });
+    try {
+      await ref.read(inventoryRepositoryProvider).updateStatus(id, next);
+      widget.onStatusChanged?.call();
+    } catch (e) {
+      if (mounted) {
+        setState(() => _invStatus = prev);
+        showDsToast(context, '状态更新失败：$e', bg: context.tokens.danger);
+      }
+    } finally {
+      if (mounted) setState(() => _statusSaving = false);
+    }
+  }
+
   // 介绍选择态（.pe-pick / .pe-text）
   String? _introTitle; // 已选介绍库标题；null → 占位「从介绍库选择…」
   int? _introDocId;
@@ -366,15 +409,40 @@ class _ProductEditorDrawerState extends ConsumerState<_ProductEditorDrawer> {
         rows.add(('总成本价', b(_fmtMoney(widget.qty! * cost))));
       }
     }
-    if ((widget.status ?? '').isNotEmpty) {
+    // 状态行：三态徽章 + 挂售 switch（在售⇄库存 即时生效；已售只读；readonly 禁用）
+    final invStatus = _invStatus;
+    final statusLabel = switch (invStatus) {
+      'on_sale' => '在售',
+      'sold' => '已售',
+      'stock' => '库存',
+      _ => widget.status ?? '',
+    };
+    if (statusLabel.isNotEmpty) {
+      final badge = DsBadge(statusLabel,
+          tone: switch (statusLabel) {
+            '在售' => DsBadgeTone.ok,
+            '已售' => DsBadgeTone.muted,
+            '库存' => DsBadgeTone.info,
+            '缺货' => DsBadgeTone.danger,
+            '预警' => DsBadgeTone.warn,
+            _ => DsBadgeTone.ok,
+          });
+      final canToggle = widget.inventoryId != null &&
+          invStatus != null &&
+          invStatus != 'sold' &&
+          !ref.watch(isReadonlyProvider);
       rows.add((
         '状态',
-        DsBadge(widget.status!,
-            tone: switch (widget.status) {
-              '缺货' => DsBadgeTone.danger,
-              '预警' => DsBadgeTone.warn,
-              _ => DsBadgeTone.ok,
-            })
+        Row(mainAxisSize: MainAxisSize.min, children: [
+          badge,
+          if (widget.inventoryId != null && invStatus != null && invStatus != 'sold') ...[
+            const SizedBox(width: 10),
+            DsSwitch(
+              value: invStatus == 'on_sale',
+              onChanged: canToggle && !_statusSaving ? _toggleOnSale : null,
+            ),
+          ],
+        ])
       ));
     }
     return Column(

client/test/golden/inventory_list_golden_test.dart

@@ -27,6 +27,7 @@ const _items = [
     id: 1,
     productId: 1,
     quantity: 128,
+    status: 'on_sale',
     productCode: 'MT-FT-500',
     productName: '茅台 飞天 53°',
     series: '飞天',
@@ -153,6 +154,7 @@ const _items = [
     id: 8,
     productId: 8,
     quantity: 0,
+    status: 'sold',
     productCode: 'FJ-QH20-500',
     productName: '汾酒 青花 20',
     series: '青花20',
@@ -249,6 +251,7 @@ List<Override> _overrides() => [
             stockValue: 2640000,
             inStockQty: 18920,
             shortageCount: 17,
+            soldCount: 17,
             warningCount: 6,
             // 月初快照 → 环比 ▲2.3% / ▲1.1% / ▼0.6%（对齐原型示例文案）
             lastMonthSku: 1255,

client/test/golden/inventory_list_mobile_golden_test.dart

@@ -22,6 +22,7 @@ const _items = [
     id: 1,
     productId: 1,
     quantity: 128,
+    status: 'on_sale',
     productCode: 'MT-FT-500',
     productName: '茅台 飞天 53°',
     series: '飞天',
@@ -76,6 +77,7 @@ const _items = [
     id: 8,
     productId: 8,
     quantity: 0,
+    status: 'sold',
     productCode: 'FJ-QH20-500',
     productName: '汾酒 青花 20',
     series: '青花20',
@@ -172,6 +174,7 @@ List<Override> _overrides() => [
             stockValue: 2640000,
             inStockQty: 18920,
             shortageCount: 17,
+            soldCount: 17,
             warningCount: 6,
             lastMonthSku: 1255,
             lastMonthValue: 2611276,

client/test/golden/product_detail_golden_test.dart

@@ -51,6 +51,7 @@ class _FakeInvRepo implements InventoryRepository {
     String? code,
     List<String>? series,
     List<String>? spec,
+    String? status,
     int page = 1,
     int pageSize = 50,
   }) async =>

client/test/stock_out_insufficient_stock_flow_test.dart

@@ -99,6 +99,7 @@ class _FakeInventoryRepository extends InventoryRepository {
     String? code,
     List<String>? series,
     List<String>? spec,
+    String? status,
     int page = 1,
     int pageSize = 50,
   }) async {