add room entity

src/officesense_pi/prisma/schema.prisma

@@ -19,4 +19,9 @@ model Tag {
   id     String @id @default(uuid())
   userId String @unique
   user   User   @relation(fields: [userId], references: [id])
-}
+}
+
+model Room {
+  id   String @id @default(uuid())
+  name String
+}