add

backend/sql/08_trade.sql

@@ -195,6 +195,29 @@ BEGIN
     ELSE
         RAISE NOTICE '🔟⏩ close_fee 子表已存在，跳过';
     END IF;
+
+    -- profit 子表
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'trade_profit') THEN
+        CREATE TABLE profit (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            trade_id UUID NOT NULL,
+            variety_tick NUMERIC(12,6) NOT NULL DEFAULT 0.00,
+            variety_tick_price NUMERIC(12,6) NOT NULL CHECK (variety_tick_price >= 0.00) DEFAULT 0.00,
+            win_tick NUMERIC(12,6) NOT NULL DEFAULT 0.00,
+            win_tick_price NUMERIC(12,6) NOT NULL DEFAULT 0.00,
+            fee_cost NUMERIC(12,6) NOT NULL DEFAULT 0.00,
+            trade_win NUMERIC(12,6) NOT NULL DEFAULT 0.00,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_profit_updated_at
+            BEFORE UPDATE ON profit
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '1️⃣1️⃣✅ profit 子表已创建';
+    ELSE
+        RAISE NOTICE '1️⃣1️⃣⏩ profit 子表已存在，跳过';
+    END IF;
 END $$;
 
 -- 4️⃣ 视图 ------------------------------------