make manual positions can add same stock and symbal to difference group (使资金监控可以添加相同股票到不同分组)

backend_api_python/app/routes/portfolio.py

@@ -255,7 +255,7 @@ def add_position():
                 INSERT INTO qd_manual_positions 
                 (user_id, market, symbol, name, side, quantity, entry_price, entry_time, notes, tags, group_name, created_at, updated_at)
                 VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, NOW(), NOW())
-                ON CONFLICT(user_id, market, symbol, side) DO UPDATE SET
+                ON CONFLICT(user_id, market, symbol, side, group_name) DO UPDATE SET
                     name = excluded.name,
                     quantity = excluded.quantity,
                     entry_price = excluded.entry_price,

backend_api_python/migrations/init.sql

@@ -438,7 +438,7 @@ CREATE TABLE IF NOT EXISTS qd_manual_positions (
     group_name VARCHAR(100) DEFAULT '',
     created_at TIMESTAMP DEFAULT NOW(),
     updated_at TIMESTAMP DEFAULT NOW(),
-    UNIQUE(user_id, market, symbol, side)
+    UNIQUE(user_id, market, symbol, side, group_name)
 );
 
 CREATE INDEX IF NOT EXISTS idx_manual_positions_user_id ON qd_manual_positions(user_id);