feat: date-range endpoints for hub inbound, bookings, and batches

Adds GET /hub/inbound, GET /hub/bookings (both new), and extends the
existing GET /hub/batches with optional from/to (YYYY-MM-DD, inclusive)
query params, backing the Hub Console's date-range picker on the Pickup
Requests, Receive Parcels, and Dispatch & Transfer pages. Reuses the same
range-parsing helper (renamed from parseHubDashboardRange to
parseHubDateRange) added for GET /hub/dashboard, defaulting to today when
omitted. The existing live endpoints (/inbound/today, /bookings/unassigned)
are untouched.

GET /hub/bookings also surfaces each booking's assignment status, mapped
to a small vocabulary (pending/assigned/picked_up/delivered/cancelled) via
the new hubBookingDisplayStatus, plus milername when assigned.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

routes/routes.go

@@ -254,7 +254,9 @@ func RegisterRoutes(app *fiber.App, cfg *config.Config) {
 	hubAuth := hub.Use(middlewares.HubStaffAuth(cfg))
 	hubAuth.Get("/dashboard", controllers.GetHubDashboardStats)
 	hubAuth.Get("/bookings/unassigned", controllers.GetHubUnassignedBookings)
+	hubAuth.Get("/bookings", controllers.GetHubBookingsRange)
 	hubAuth.Get("/inbound/today", controllers.GetHubInboundToday)
+	hubAuth.Get("/inbound", controllers.GetHubInboundRange)
 	hubAuth.Post("/bookings/:id/inbound", controllers.CreateInboundScan)
 	hubAuth.Post("/bookings/:id/assign-miler", controllers.HubAssignMiler)
 	hubAuth.Post("/bookings/:id/auto-assign", controllers.HubAutoAssign)