Fix PM2 user permission error (UID 1002 not found)

- Add proper error handling for user creation with detailed logging
- Verify user exists before starting PM2
- Set HOME environment variable when running PM2
- Run PM2 with --no-daemon flag and proper user context
- Add ownership fix for generated ecosystem.config.js

This should resolve the "User identifier does not exist: 1002" error
by ensuring the user is properly created and PM2 runs in the correct context.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

scripts/entrypoint.sh

@@ -8,7 +8,16 @@ if [ -z "$environment" ]; then
   environment="PROD"
 fi
 
-adduser -u $uid $user
+# Create user with proper error handling
+if ! id -u $user >/dev/null 2>&1; then
+    echo "Creating user $user with UID $uid"
+    adduser -u $uid -m -s /bin/bash $user || {
+        echo "Failed to create user $user with UID $uid"
+        exit 1
+    }
+else
+    echo "User $user already exists"
+fi
 
 mkdir -p /home/$user/app
 mkdir -p /home/$user/logs/{nginx,nodejs}
@@ -64,15 +73,25 @@ fi
 
 # Now there's always an app in the user directory (either user's or example)
 cd /home/$user/app
+
+# Verify user exists and show info
+echo "Verifying user setup:"
+id $user || { echo "ERROR: User $user does not exist!"; exit 1; }
+
+# Install dependencies as the user
+echo "Installing npm dependencies as user $user..."
 su -c "npm install" $user
 
 # Check if ecosystem.config.js exists, if not generate it
 if [ ! -f /home/$user/app/ecosystem.config.js ]; then
   echo "No ecosystem.config.js found, generating from package.json..."
   /scripts/generate-ecosystem-config.sh "$user" "/home/$user/app"
+  chown $user:$user /home/$user/app/ecosystem.config.js
 fi
 
-su -c "pm2 start ecosystem.config.js" $user
+# Start PM2 as the user with HOME environment set
+echo "Starting PM2 as user $user..."
+su -c "cd /home/$user/app && HOME=/home/$user pm2 start ecosystem.config.js --no-daemon" $user &
 
 # Follow logs
 tail -f /home/$user/logs/nginx/* /home/$user/logs/nodejs/*