This PR simplifies the customers model by removing all complex logic and transformations, replacing it with a simple pass-through query that selects all columns from the stg_customers staging table.

Changes:

• Removed all CTEs (customers, orders, payments, signups, customer_orders, customer_payments, final)
• Replaced with simple select * from {{ ref('stg_customers') }}
• This will significantly reduce the model's complexity and execution time

Impact:

• The customers table will now only contain the columns from stg_customers (customer_id, first_name, last_name)
• All derived columns (first_order, most_recent_order, number_of_orders, customer_lifetime_value, customer_email, signup_date) will be removed
• Any downstream models or tests that depend on these columns may need to be updated
  
  Created by: [email protected]