feat(db): add user onboarding tour completion columns

Persist completedManageTour and completedBoardTour on the user table
with renamed migrations across sqlite, mysql, and postgresql.

packages/db/migrations/sqlite/meta/_journal.json

@@ -265,8 +265,8 @@
       "idx": 37,
       "version": "6",
       "when": 1779199046805,
-      "tag": "0037_equal_retro_girl",
+      "tag": "0037_add_user_onboarding_tour_status",
       "breakpoints": true
     }
   ]
-}
+}