feat: miler lifecycle — expose reachedat, arrival-fact reached, PATCH addresses

- GET /miler/bookings now returns reachedat + arrivallatitude/arrivallongitude
  on every row, so the app reconstructs "Arrived" (Pickup_Scheduled + reachedat)
  after a restart with no new status.
- reached records arrival as a FACT (timestamp + GPS) and no longer flips the
  booking to Arrived_At_Pickup — the status stays Pickup_Scheduled, matching the
  rider app's derive-from-reachedat model and dropping the console mapping need.
- New PATCH /miler/bookings/:id/addresses: partial pickup/delivery address,
  pincode, coords, city correction before pickup-complete (INVALID_STATE after).
- pickupbookings gains nullable arrivedat/arrivallatitude/arrivallongitude
  (AutoMigrate, additive).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WRaFH5hMRqmUQvVPQsyjZD

controllers/milerAppController.go

@@ -337,6 +337,14 @@ func MilerGetMyBookings(c *fiber.Ctx) error {
 			"deliverylongitude": b.Deliverylongitude,
 			"customername":      strings.TrimSpace(customer.Firstname + " " + customer.Lastname),
 			"customerphone":     customer.Phone,
+			// Arrival fact: the rider app derives its "Arrived" rung from
+			// pickup-scheduled + a non-null reachedat, so this survives an app
+			// restart without a separate booking status. Null until the rider hits
+			// the reached endpoint. arrivallatitude/longitude are the GPS captured
+			// at that moment (null if the app sent none).
+			"reachedat":         b.Arrivedat,
+			"arrivallatitude":   b.Arrivallatitude,
+			"arrivallongitude":  b.Arrivallongitude,
 			"parcels":           b.Parcels,
 			"serviceoptions":    b.ServiceOptions,
 			"codamount":         codAmount,