Add database setup script for marketplace service

- Created scripts/setup-database.sql to create aitbc_marketplace database
- Database configured with aitbc_marketplace user and privileges

This completes Phase 4.4d: Setup separate database for marketplace service

apps/marketplace-service/scripts/setup-database.sql

@@ -0,0 +1,19 @@
+-- Setup database for Marketplace service
+
+-- Create database
+CREATE DATABASE aitbc_marketplace;
+
+-- Create user
+CREATE USER aitbc_marketplace WITH PASSWORD 'password';
+
+-- Grant privileges
+GRANT ALL PRIVILEGES ON DATABASE aitbc_marketplace TO aitbc_marketplace;
+
+-- Connect to the database
+\c aitbc_marketplace
+
+-- Grant schema privileges
+GRANT ALL ON SCHEMA public TO aitbc_marketplace;
+
+-- Exit
+\q