fix(ci): keep the reservations repository at its size baseline

The wallet pass commit had reformatted the whole repository file, which put
it 200 lines over its size baseline. It is back to its old form, in the format
baseline again, and the pass-context query lives in a helper of its own.

server/scripts/format-baseline.json

@@ -1,6 +1,7 @@
 [
   "src/db/repositories/DayAssignments.repository.ts",
   "src/db/repositories/Places.repository.ts",
+  "src/db/repositories/Reservations.repository.ts",
   "src/db/repositories/Trips.repository.ts",
   "src/db/repositories/Users.repository.ts",
   "src/nest/atlas/atlas-geo.ts",