Remove Serbian colors including Braon from database

- Remove Serbian color entries from schema.sql
- Add migration to delete Serbian colors from existing databases
- Add migration runner scripts for easier database updates
- Install pg package for PostgreSQL client support

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

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

scripts/run-specific-migration.js

@@ -0,0 +1,37 @@
+const { Pool } = require('pg');
+
+// Parse connection string from environment or command line
+const connectionString = process.env.DATABASE_URL || process.argv[2];
+const migrationSQL = process.argv[3];
+
+if (!connectionString || !migrationSQL) {
+  console.error('Usage: node run-specific-migration.js "postgresql://..." "SQL"');
+  process.exit(1);
+}
+
+const pool = new Pool({
+  connectionString,
+  ssl: {
+    rejectUnauthorized: false // For AWS RDS
+  }
+});
+
+async function runMigration() {
+  try {
+    console.log('Running migration SQL:', migrationSQL);
+    
+    // Execute the migration
+    const result = await pool.query(migrationSQL);
+    
+    console.log('✅ Migration completed successfully!');
+    console.log('Rows affected:', result.rowCount);
+    
+  } catch (error) {
+    console.error('❌ Migration failed:', error.message);
+    process.exit(1);
+  } finally {
+    await pool.end();
+  }
+}
+
+runMigration();