{"openapi":"3.1.0","info":{"title":"POST /api/v1/billing/grandfather","version":"1.0.0","description":"Grandfather the current business (superuser only)"},"servers":[{"url":"https://api.ondayzero.com","description":"Production"}],"paths":{"/api/v1/billing/grandfather":{"post":{"tags":["billing"],"summary":"Grandfather the current business (superuser only)","description":"Mark the current business as grandfathered so it keeps access without billing.\n\n**Effect:**\n- Sets ``plan_tier`` to ``grandfathered`` and ``billing_status`` to ``active``\n- Clears ``trial_ends_at``\n- Grants the default grandfathered add-on set\n\n**Prerequisites:**\n- Caller must be a superuser. Regular users never see this in the UI\n  and receive 403 if they call the endpoint directly.","operationId":"grandfather_business","parameters":[{"name":"authorization","in":"header","required":false,"schema":{"anyOf":[{"type":"string"},{"type":"null"}],"title":"Authorization"}},{"name":"x-business-id","in":"header","required":false,"schema":{"anyOf":[{"type":"string"},{"type":"null"}],"title":"X-Business-Id"}}],"responses":{"201":{"description":"Successful Response","content":{"application/json":{"schema":{"$ref":"#/components/schemas/SuccessEnvelope_GrandfatherBusinessResponse_"}}}},"403":{"description":"Forbidden - Insufficient permissions","content":{"application/json":{"example":{"error":"forbidden","message":"You don't have permission to access this resource","code":"AUTH_002","request_id":"3f0e7c2a-9b4d-4e1a-8c6f-2d5b7a1e9c30"},"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"422":{"description":"Validation Error","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"},"example":{"error":"validation_error","message":"Validation failed: amount: Input should be a valid integer","errors":{"amount":"Input should be a valid integer"},"code":"GEN_002","request_id":"3f0e7c2a-9b4d-4e1a-8c6f-2d5b7a1e9c30"}}}},"401":{"description":"Unauthorized - Missing/invalid token or no access to this business","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"},"example":{"error":"unauthorized","message":"Authentication required","code":"AUTH_001","request_id":"3f0e7c2a-9b4d-4e1a-8c6f-2d5b7a1e9c30"}}}}},"x-fastapi-operation-id":"grandfather_business_api_v1_billing_grandfather_post"}}},"components":{"schemas":{"GrandfatherBusinessResponse":{"properties":{"plan_tier":{"type":"string","title":"Plan Tier"},"billing_status":{"type":"string","title":"Billing Status"},"grandfathered_addons":{"items":{"type":"string"},"type":"array","title":"Grandfathered Addons"},"trial_ends_at":{"anyOf":[{"type":"string"},{"type":"null"}],"title":"Trial Ends At"},"is_billing_active":{"type":"boolean","title":"Is Billing Active","default":true}},"additionalProperties":true,"type":"object","required":["plan_tier","billing_status","grandfathered_addons"],"title":"GrandfatherBusinessResponse","description":"Response for superuser-only ``grandfather_business``."},"SuccessEnvelope_GrandfatherBusinessResponse_":{"properties":{"success":{"type":"boolean","title":"Success","default":true},"message":{"anyOf":[{"type":"string"},{"type":"null"}],"title":"Message"},"code":{"anyOf":[{"type":"string"},{"type":"null"}],"title":"Code"},"data":{"anyOf":[{"$ref":"#/components/schemas/GrandfatherBusinessResponse"},{"type":"null"}]}},"additionalProperties":true,"type":"object","title":"SuccessEnvelope[GrandfatherBusinessResponse]"},"ErrorResponse":{"title":"ErrorResponse","type":"object","description":"Envelope returned by every non-2xx response. Branch on `code` (stable) rather than `message` (human-readable, may change).","required":["error","message","code"],"properties":{"error":{"type":"string","description":"Error category: `validation_error`, `unauthorized`, `forbidden`, `not_found`, `conflict`, `rate_limited`, `server_error`, or `service_unavailable`."},"message":{"type":"string","description":"Human-readable explanation, safe to show to end users."},"code":{"type":"string","description":"Stable machine-readable code in `CATEGORY_NNN` form (e.g. `NOT_FOUND_006`, `AUTH_010`, `GEN_002`)."},"request_id":{"type":"string","description":"Correlation id for support requests. Echoes the `x-request-id` request header when one was supplied."},"errors":{"type":"object","additionalProperties":{"type":"string"},"description":"Field-level validation messages keyed by field name. Present on 400/422 validation failures only."}}}},"securitySchemes":{"BearerAuth":{"type":"http","scheme":"bearer","bearerFormat":"API Token","description":"API token authentication. Format: `Bearer dz_...`"}}},"security":[{"BearerAuth":[]}]}