feat: miler app contract gaps — stop type, COD, pre-pickup skip, profile

Close the gaps the miler-app dev flagged against the deployed contract.

- GET /miler/bookings: return stoptype (pickup|delivery, from status),
  step + road-optimized sequence (cumulativekms/etaminutes/cumulativeeta),
  and codamount/paymentmode. List sorted by step, unsequenced last.
  Lookups batched to avoid N+1.
- POST /miler/bookings/:bookingid/skip: pre-pickup skip that keeps the
  booking assigned and resumable — the "route back" the consignment-only
  delivery skip couldn't give a not-yet-picked-up booking.
- GET /miler/earnings: add cancelled_stops + total_stops for success rate.
- PUT /miler/profile: persist email (to appusers, 409 on unique clash) and
  a new nullable milerprofiles.address column.
- POST /miler/assignments/:id/reject: accept reason from body OR ?reason=.

Notifications read-state and bonuspoints deliberately left as-is — both
need a product/business decision, not code.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

routes/routes.go

@@ -144,6 +144,9 @@ func RegisterRoutes(app *fiber.App, cfg *config.Config) {
 	milerAuth.Post("/bookings/:bookingid/pickup-complete", controllers.BookingPickupComplete)
 	milerAuth.Post("/bookings/:bookingid/vehicle-required", controllers.BookingVehicleRequiredEscalate)
 	milerAuth.Post("/bookings/:bookingid/cancel", controllers.MilerCancelAssignment)
+	// Pre-pickup skip: defer a not-yet-picked-up booking without releasing it,
+	// so the rider can resume it (the consignment skip needs a consignment).
+	milerAuth.Post("/bookings/:bookingid/skip", controllers.MilerSkipPickup)
 
 	// Redis periodic telemetry and status logs
 	milerAuth.Post("/logs", controllers.CreateMilerPeriodicLog)