feat(db): 新增测试数据清除功能，物理清空全部 4 张表并重置 SP 状态

- 各 DAO 新增 deleteAll() 物理清空方法
- DbRepository 新增 clearAllTestData()，按顺序删除食材→菜品→调料→槽位
- DbViewModel 暴露 clearAllTestData(onDone) 供 UI 层调用
- SettingActivity 新增「测试数据清除」入口（隐藏，右上角图标触发显示）
- 清除完成后重置 SpTool.cookMode=-1 和 SpTool.canteenId="0"

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/src/main/java/com/shuwei/dish/match/db/DbRepository.kt

@@ -222,6 +222,17 @@ class DbRepository {
     suspend fun countSlotAll() = withContext(Dispatchers.IO) {
         db.seasoningSlotDao().countSlotAll()
     }
+
+    /**
+     * 物理清空全部 4 张表的测试数据
+     * 清除顺序：先删子表（食材），再删主表（菜品），最后删配置表（调料、槽位）
+     */
+    suspend fun clearAllTestData() = withContext(Dispatchers.IO) {
+        db.cookFoodGoodsDao().deleteAll()
+        db.cookFoodDao().deleteAll()
+        db.seasoningDao().deleteAll()
+        db.seasoningSlotDao().deleteAll()
+    }
 }
 //
 //class SeasoningRepository(val seasoningDao: SeasoningDao) {

app/src/main/java/com/shuwei/dish/match/db/DbViewModel.kt

@@ -239,6 +239,17 @@ class DbViewModel : ViewModel() {
 
     // ---- 数据库调试查看 ----
 
+    /**
+     * 物理清空全部 4 张表的测试数据，完成后通过回调通知 UI
+     * @param onDone 清除完成后在主线程执行的回调
+     */
+    fun clearAllTestData(onDone: () -> Unit) {
+        viewModelScope.launch {
+            rep.clearAllTestData()
+            onDone()
+        }
+    }
+
     companion object {
         /** 每页加载条数 */
         const val DB_INSPECT_PAGE_SIZE = 50

app/src/main/java/com/shuwei/dish/match/db/dao/CookFoodDao.kt

@@ -40,4 +40,8 @@ interface CookFoodDao {
     /** 统计菜品记录总数，showDel=true 时包含已删除记录 */
     @Query("SELECT COUNT(*) FROM dm_cook_food WHERE (:showDel = 1 OR isDel = 0)")
     suspend fun countCookFoodAll(showDel: Int): Int
+
+    /** 物理清空全表，用于清除测试数据 */
+    @Query("DELETE FROM dm_cook_food")
+    suspend fun deleteAll()
 }

app/src/main/java/com/shuwei/dish/match/db/dao/CookFoodGoodsDao.kt

@@ -40,4 +40,8 @@ interface CookFoodGoodsDao {
     /** 统计食材记录总数，showDel=true 时包含已删除记录 */
     @Query("SELECT COUNT(*) FROM dm_cook_food_goods WHERE (:showDel = 1 OR isDel = 0)")
     suspend fun countCookFoodGoodsAll(showDel: Int): Int
+
+    /** 物理清空全表，用于清除测试数据 */
+    @Query("DELETE FROM dm_cook_food_goods")
+    suspend fun deleteAll()
 }

app/src/main/java/com/shuwei/dish/match/db/dao/SeasoningDao.kt

@@ -53,4 +53,8 @@ interface SeasoningDao {
     /** 统计调料记录总数，showDel=true 时包含已删除记录 */
     @Query("SELECT COUNT(*) FROM dm_seasoning WHERE (:showDel = 1 OR isDel = 0)")
     suspend fun countSeasoningAll(showDel: Int): Int
+
+    /** 物理清空全表，用于清除测试数据（比 clearAllSeasoning 的逻辑删除更彻底） */
+    @Query("DELETE FROM dm_seasoning")
+    suspend fun deleteAll()
 }

app/src/main/java/com/shuwei/dish/match/db/dao/SeasoningSlotDao.kt

@@ -60,4 +60,8 @@ interface SeasoningSlotDao {
      */
     @Query("DELETE FROM dm_seasoning_slot WHERE deviceId = :deviceId")
     suspend fun deleteAllByDeviceId(deviceId: String)
+
+    /** 物理清空全表，用于清除测试数据 */
+    @Query("DELETE FROM dm_seasoning_slot")
+    suspend fun deleteAll()
 }

app/src/main/java/com/shuwei/dish/match/ui/SettingActivity.kt

@@ -16,6 +16,7 @@ import com.shuwei.dish.match.utils.SpTool
 import com.shuwei.dish.match.utils.ext.clickWithDebounce
 import com.shuwei.dish.match.utils.ext.gone
 import com.shuwei.dish.match.utils.ext.startActivity
+import com.shuwei.dish.match.utils.ext.toast
 import com.shuwei.dish.match.utils.ext.visible
 
 /**
@@ -48,6 +49,7 @@ class SettingActivity : BaseActivity() {
             it.clickWithDebounce {
                 binding.llDbInspect.visible()
                 binding.llScaleObserve.visible()
+                binding.llClearTestData.visible()
             }
         })
 
@@ -83,6 +85,27 @@ class SettingActivity : BaseActivity() {
         binding.llScaleObserve.clickWithDebounce {
             startActivity<MasterScaleActivity>()
         }
+        binding.llClearTestData.clickWithDebounce {
+            showClearTestDataDialog()
+        }
+    }
+
+    /**
+     * 弹出清除测试数据的二次确认弹窗
+     */
+    private fun showClearTestDataDialog() {
+        CommonDialog(this)
+            .setTitle("测试数据清除")
+            .setContent("将物理删除全部 4 张表数据（菜品、食材、调料、槽位），此操作不可恢复，同时重置菜品模式和食堂id，确认继续？")
+            .setNegativeButton("取消")
+            .setPositiveButton("确认清除") {
+                appViewModel.clearAllTestData {
+                    SpTool.cookMode = -1
+                    SpTool.canteenId = "0"
+                    toast("测试数据已清除")
+                }
+            }
+            .show()
     }
 
     private fun openCollectPage() {

app/src/main/res/layout/activity_setting.xml

@@ -173,6 +173,38 @@
             tools:ignore="ContentDescription" />
     </LinearLayout>
 
+    <LinearLayout
+        android:id="@+id/llClearTestData"
+        android:layout_width="match_parent"
+        android:layout_height="120dp"
+        android:layout_marginHorizontal="32dp"
+        android:layout_marginTop="50dp"
+        android:background="@drawable/shape_white_dc_15_corners"
+        android:clipToOutline="true"
+        android:foreground="?android:attr/selectableItemBackground"
+        android:gravity="center_vertical"
+        android:orientation="horizontal"
+        android:visibility="gone">
+
+        <TextView
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="32dp"
+            android:layout_weight="1"
+            android:text="测试数据清除"
+            android:textColor="@color/black333"
+            android:textSize="32sp"
+            android:textStyle="bold" />
+
+        <ImageView
+            android:layout_width="40dp"
+            android:layout_height="40dp"
+            android:layout_marginEnd="20dp"
+            android:adjustViewBounds="true"
+            android:src="@drawable/ic_arrow_right3"
+            tools:ignore="ContentDescription" />
+    </LinearLayout>
+
     <!--    &lt;!&ndash; 底部导航菜单 &ndash;&gt;-->
     <!--    <LinearLayout-->
     <!--        android:id="@+id/bottomMenu"-->