[mitchelljkotler]

Calculates an organization's AI credit quota as base × quantity, the formula Squarelet's release 6 prepares for.

Do not merge until Squarelet's migrate_entitlement_shape has run on production (release 6, MuckRock/squarelet#805). Before it, a DocumentCloud credit pack's entitlement still holds its value in ai_credits_per_user with base_ai_credits 0, so this formula would grant pack holders nothing. After it, both formulas give the same number for every entitlement and quantity.

Fixes #491. Part of MuckRock/squarelet#769.

Behaviour changes

• _calc_ent_ai_credits returns base_ai_credits × quantity. It no longer reads ai_credits_per_user or minimum_users. After release 6, every Squarelet entitlement has minimum_users: 1 and per_user = base (packs: base = per-unit value), which makes the two formulas identical. A plan is quantity 1; extra credits are a pack line, whose quantity is how many packs it holds.
• No quota changes, once release 6 has run.
• Tests: the factories take release 6's shape, and a credit pack factory is added. The old seat-quantity tests become pack quantities with the same numbers. The two "minimum users" tests become one "base × quantity" test and one pack-quantity test.

Migrations

None.

What to check

• Release 6's migrate_entitlement_shape has run on production.
• Squarelet has sent fresh entitlements (cache invalidation after release 6), so DocumentCloud isn't reading the old shape from cache.
• After deploy: an Organization with credit packs shows the same ai_credits_per_month as before.

🤖 Generated with Claude Code

https://claude.ai/code/session_0151rwxtvLg1vKEiz7XsJfzf