chore: move dev.sh to backend folder and setup pre-commit

backend/dev.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+
+# This script is used to run the development environment.
+
+python3 -m pip install -i https://pypi.tuna.tsinghua.edu.cn/simple install -r requirements-dev.txt
+
+# install git-hooks for pre-commit before committing.
+pre-commit install
+
+cd src || exit
+
+CONFIG_DIR="config"
+
+if [ ! -d "$CONFIG_DIR" ]; then
+    echo "The directory '$CONFIG_DIR' is missing."
+    mkdir config
+fi
+
+VERSION_FILE="module/__version__.py"
+
+if [ ! -f "$VERSION_FILE" ]; then
+    echo "The file '$VERSION_FILE' is missing."
+    echo "VERSION='DEV_VERSION'" >> "$VERSION_FILE"
+fi
+
+python3 main.py