Tell chat setup users with no licence to activate one - #1448

Summary

Found while testing the chat setup end to end on Cloud (claude.ai, workspace with no licence): setup_install_connector was refused because the workspace has no active licence, which is right, but the answer told the user to "Choose a plan with more connectors, or remove a connector." For an empty workspace without a licence neither helps, and Claude itself pointed out that the hint was misleading.

planLimitAnswer now checks the licence usage first. With no licence at all (plan null: ended trial or lapsed plan):

• an admin is told the workspace has no active licence and gets the licence page link;
• other members are told to ask an administrator to activate a licence.

The trial and paid-plan answers are unchanged.

Cloud only in practice: checkCanCreateConnector refuses nothing on self-hosted.

Changes

• packages/backend/src/adapters/connector-setup.service.ts: no-licence branch in planLimitAnswer.
• packages/backend/src/adapters/connector-setup.service.spec.ts: two new cases; the default getUsage mock now carries plan: 'trial' so the existing cases keep their meaning.

Type

• Bug fix

Testing

• Added/updated unit tests (backend tests in CI)
• Reproduced on Cloud 2026-11-02 with the AnythingMCP directory connector in claude.ai, empty workspace without licence, asking Claude to add Shopify.