Add PostgreSQL database option and more booking flow functionalities

storage/postgresql/schema.hcl

@@ -0,0 +1,104 @@
+table "bookings" {
+  schema = schema.carpool_service
+  column "id" {
+    null = false
+    type = uuid
+  }
+  column "booking" {
+    null = false
+    type = jsonb
+  }
+  column "status" {
+    null = false
+    type = enum.booking_status
+  }
+  column "driver_route" {
+    null = true
+    type = jsonb
+  }
+  column "passenger_route" {
+    null = true
+    type = jsonb
+  }
+  primary_key {
+    columns = [column.id]
+  }
+}
+table "journeys_cache" {
+  schema = schema.carpool_service
+  column "id" {
+    null = false
+    type = uuid
+  }
+  column "data" {
+    null = false
+    type = jsonb
+  }
+  column "created_at" {
+    null    = false
+    type    = timestamptz
+    default = sql("now()")
+  }
+  primary_key {
+    columns = [column.id]
+  }
+}
+table "regular_route_schedules" {
+  schema = schema.carpool_service
+  column "route_id" {
+    null = false
+    type = uuid
+  }
+  column "day" {
+    null = false
+    type = enum.day
+  }
+  column "time_of_day" {
+    null = false
+    type = time
+  }
+}
+table "regular_routes" {
+  schema = schema.carpool_service
+  column "id" {
+    null = false
+    type = uuid
+  }
+  column "user_id" {
+    null = false
+    type = uuid
+  }
+  column "routes_group_id" {
+    null = true
+    type = uuid
+  }
+  column "grid_ids" {
+    null = true
+    type = sql("numeric[]")
+  }
+  column "is_driver" {
+    null = true
+    type = boolean
+  }
+  column "is_passenger" {
+    null = true
+    type = boolean
+  }
+  column "route" {
+    null = false
+    type = jsonb
+  }
+  primary_key {
+    columns = [column.id]
+  }
+}
+enum "booking_status" {
+  schema = schema.carpool_service
+  values = ["INITIATED", "WAITING_PASSENGER_CONFIRMATION", "WAITING_DRIVER_CONFIRMATION", "CONFIRMED", "CANCELLED", "COMPLETED_PENDING_VALIDATION", "VALIDATED"]
+}
+enum "day" {
+  schema = schema.carpool_service
+  values = ["MON", "TUE", "WED", "THU", "FRI", "SAT", "SUN"]
+}
+schema "carpool_service" {
+}