Initial commit: Meshkee CMS API

NestJS backend with Prisma, Docker Compose for Postgres/Redis, and deploy docs for the production VM.

database/migrations/021_business_customer_is_enabled.sql

@@ -0,0 +1,6 @@
+-- Business-scoped customer enable/disable (does not deactivate the global user account)
+ALTER TABLE business_customers
+  ADD COLUMN IF NOT EXISTS is_enabled BOOLEAN NOT NULL DEFAULT TRUE;
+
+CREATE INDEX IF NOT EXISTS idx_business_customers_is_enabled
+  ON business_customers (business_id, is_enabled);