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jubnl
8f8e5af632
Both accepted trip_id: number | string per 3c's carry note (their "stays
loose for other callers" reasoning), pending the guard-level single parse
landing first. Re-checked every caller directly: setOwner's one production
caller (trip-members.service.ts#transferOwnership) already passes trip.id,
a real number resolved earlier in the same transaction; remove's callers
are trips.rpc.ts (num(), already a validated number), trips.mcp.ts (Zod-
typed tool input, already a number) and TripMembersController.removeMember
(the one genuine raw-string caller, :id off the route with no class-level
TripAccessGuard on this controller by design).
TripMembersController.removeMember now parses :id once (toRowId, not
Number() — rule 15's NaN-into-SQL trap) and threads the parsed number to
both its own access check and removeMember, instead of passing the raw
string through twice. TripMembersService.removeMember and both repository
methods narrow to number accordingly; setOwner's WHERE also moves off its
raw-bind escape hatch onto nativeUpdate now that trip_id is typed, and
remove's trip_id half moves onto a typed .where({ trip: trip_id }) filter
(user_id keeps its own raw bind — a different, still-live NaN-safety seam,
unrelated to this narrowing).
TRIPREPO-018 and TMEMREPO-023, which pinned the retired string-bind seam
on setOwner/remove, no longer typecheck against the narrowed signatures
and are removed with an explanatory comment in their place.