chore: seminarhof customer project

db/sqlite/0006-booking-lifecycle.sql

@@ -0,0 +1,17 @@
+-- Booking lifecycle milestones.
+--
+-- The status enum is reshaped to a lean "bucket": enquiry | reserved |
+-- confirmed | ended | cancelled. The contract + deposit progression that
+-- runs inside `reserved` (over ~1 year) is tracked as the columns below plus the
+-- deposit row on the invoice table — NOT as extra statuses. A daily cron reads
+-- these columns; nothing here runs a long-lived workflow.
+ALTER TABLE booking ADD COLUMN contract_sent_at         TEXT;  -- ISO; day-0 anchor + R1 idempotency guard
+ALTER TABLE booking ADD COLUMN contract_response        TEXT CHECK (contract_response IN ('approved', 'declined'));  -- null = pending
+ALTER TABLE booking ADD COLUMN contract_response_at     TEXT;  -- ISO
+ALTER TABLE booking ADD COLUMN deposit_reminder_sent_at TEXT;  -- ISO; R2 idempotency guard
+ALTER TABLE booking ADD COLUMN flagged_at               TEXT;  -- ISO; set when admin review is needed
+ALTER TABLE booking ADD COLUMN flag_reason              TEXT CHECK (flag_reason IN ('deposit_overdue', 'short_window', 'contract_declined'));
+
+-- Collapse the two retired statuses onto the new bucket (for any non-reset DB).
+UPDATE booking SET status = 'reserved'  WHERE status = 'form_received';
+UPDATE booking SET status = 'confirmed' WHERE status = 'deposit_paid';