修复代码问题：提高脚本健壮性、增强灵活性、改善可读性

scripts/start-agent.sh

@@ -1,4 +1,5 @@
 #!/bin/bash
+set -e
 
 check_env_var() {
     if [ -z "${!1// /}" ]; then
@@ -12,9 +13,14 @@ check_env_var OSS_ACCESS_KEY
 check_env_var OSS_SECRET_KEY
 check_env_var WORKER_NAME
 check_env_var BINANCE_FUTURES_DIR
-WORKING_DIR=/kaggle/working
+# Set working directory with default value
+WORKING_DIR=${WORKING_DIR:-/kaggle/working}
 
-pip install git+https://gitea.oopsapi.com/yhydev/myscripts.git prefect_shell freqtrade prefect;
+pip install \
+    git+https://gitea.oopsapi.com/yhydev/myscripts.git \
+    prefect_shell \
+    freqtrade \
+    prefect;
 if [ ! -d $WORKING_DIR/user_data ]; then
 freqtrade create-userdir --userdir $WORKING_DIR/user_data;
 fi
@@ -25,9 +31,9 @@ fi;
 cd $WORKING_DIR;
 if [ ! -f ~/.local/bin/mc ]; then
 mkdir -p ~/.local/bin
-wget https://dl.min.io/aistor/mc/release/linux-amd64/mc -O ~/.local/bin/mc
+wget https://dl.min.io/aistor/mc/release/linux-amd64/mc -O $HOME/.local/bin/mc
 chmod +x ~/.local/bin/mc
 fi
-export PATH=$PATH:~/.local/bin
+export PATH=$PATH:$HOME/.local/bin
 mc alias set oss $OSS_ENDPOINT $OSS_ACCESS_KEY $OSS_SECRET_KEY --api S3v4
 prefect worker start --name $WORKER_NAME --pool freqtrade -l 3