Add seed logging for clients and orders

[kalashnikovisme]

Motivation

• Provide simple, idempotent seed data for Client and Order and surface concise runtime feedback when running seeds so created/found records are visible.

Description

• Create db/seeds.rb that defines clients_data and orders_data, uses find_or_create_by! to seed records idempotently, and prints puts lines for each client and order showing key attributes (id, name, email, number, client_id, total_cents, status).

Testing

• Run ruby -c db/seeds.rb to verify syntax, which completed successfully ("Syntax OK").

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Codex Task