Fixed tabled

migrations/000057_add_customer_password_field.up.sql

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+-- Add password field to customers table for authentication
+ALTER TABLE customers ADD COLUMN password_hash VARCHAR(255);
+
+-- Add phone number field if not exists (for registration)
+ALTER TABLE customers ADD COLUMN phone_number VARCHAR(20) UNIQUE;
+
+-- Add birth_date field for customer registration
+ALTER TABLE customers ADD COLUMN birth_date DATE;
+
+-- Add indexes for better performance
+CREATE INDEX idx_customers_phone_number ON customers(phone_number);
+CREATE INDEX idx_customers_password_hash ON customers(password_hash) WHERE password_hash IS NOT NULL;
+
+-- Add comments
+COMMENT ON COLUMN customers.password_hash IS 'Hashed password for customer authentication';
+COMMENT ON COLUMN customers.phone_number IS 'Unique phone number for customer login';
+COMMENT ON COLUMN customers.birth_date IS 'Customer birth date for registration';