Tools: Add postgres setup script

setup_postgres.sh

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+#!/bin/bash
+echo "Starting PostgreSQL Setup..."
+
+# Ensure service is running
+service postgresql start
+
+# Set postgres user password
+# Use single quotes for the inner SQL string to handle special characters if possible, 
+# but password has single quote? No: X@gon2005!#$ 
+# We need to escape carefully.
+echo "Setting postgres user password..."
+su - postgres -c "psql -c \"ALTER USER postgres PASSWORD 'X@gon2005!#$';\""
+
+# Create Database
+echo "Creating database WebPerformance..."
+su - postgres -c "createdb WebPerformance" || echo "Database WebPerformance might already exist or creation failed."
+
+# Initialize Schema using application code
+echo "Initializing Database Schema..."
+cd /var/www/web-page-performance-test || exit
+# Ensure dependencies are installed
+npm install
+# Run the schema initialization function exported in lib/db.js
+node -e "const db = require('./lib/db'); db.initSchema().then(() => { console.log('Schema init called'); process.exit(0); }).catch(e => { console.error(e); process.exit(1); });"
+
+echo "PostgreSQL Setup Complete."