改进软链接创建逻辑，确保指向正确的目录

scripts/start-agent.sh

@@ -37,8 +37,19 @@ if [ ! -d $WORKING_DIR/user_data ]; then
 freqtrade create-userdir --userdir $WORKING_DIR/user_data;
 fi
 mkdir -p $WORKING_DIR/user_data/data/binance;
-if [ ! -L $WORKING_DIR/user_data/data/binance/futures ]; then 
-ln -s $BINANCE_FUTURES_DIR $WORKING_DIR/user_data/data/binance/futures; 
+# Check if the symlink exists and points to the correct directory
+SYMLINK_PATH="$WORKING_DIR/user_data/data/binance/futures"
+if [ -L "$SYMLINK_PATH" ]; then
+    # Get the actual target of the symlink
+    CURRENT_TARGET=$(readlink "$SYMLINK_PATH")
+    if [ "$CURRENT_TARGET" != "$BINANCE_FUTURES_DIR" ]; then
+        echo "Symlink exists but points to wrong target. Removing and recreating..."
+        rm -f "$SYMLINK_PATH"
+        ln -s "$BINANCE_FUTURES_DIR" "$SYMLINK_PATH"
+    fi
+else
+    # Symlink doesn't exist, create it
+    ln -s "$BINANCE_FUTURES_DIR" "$SYMLINK_PATH"
 fi;
 cd $WORKING_DIR;
 if [ ! -f ~/.local/bin/mc ]; then