Add bash script for automation

In the future this script will run on a /restart or /update command, so I don't have to manually pull Git changes & restart the bot on the server.

racu_update.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+# Change to the project directory
+# cd .
+
+# Stash any local changes
+git stash
+
+# Fetch the latest changes from the remote repository
+git fetch
+
+# Get the current branch
+current_branch=$(git symbolic-ref --short HEAD)
+
+# Check if the branch is behind the remote branch
+if [ -n "$(git rev-list --left-only --count origin/$current_branch...HEAD)" ]; then
+    # Pull the latest changes
+    git pull
+
+    # Check if there are any merge conflicts
+    if [ -n "$(git ls-files --unmerged)" ]; then
+        echo "Merge conflicts detected. Please resolve them manually."
+        exit 1
+    fi
+else
+    echo "No new changes found in the remote repository."
+fi
+
+# Restart the pm2 process
+pm2 restart Racu.Core 1>/dev/null 2>&1
+
+# Check the pm2 process status
+pm2_status=$(pm2 jlist | jq -r '.[] | select(.name == "Racu.Core") | .pm2_env.status')
+
+if [ "$pm2_status" = "online" ]; then
+    echo "Process restarted successfully."
+else
+    echo "Failed to restart the process. Check the pm2 logs for more information."
+    exit 1
+fi
+
+exit 0