priya

Anything the server owns stays in the query cache. The store holds only what would be lost on reload and does not belong in the URL.

Keep the subscription and its payments as separate records. Collapsing them makes a failed retry impossible to represent honestly.

Route SMTP to a local capture service and use a reserved test domain in every seeded persona. Treat outbound network access as an additional safety layer, not the only one.

Models can still shape list and form data, but cross-cutting work such as notifications, storage, and billing is easier to test behind explicit services.

Test generated links as a guest and a signed-in member. Access filtering can make two apparently identical menu structures resolve differently.