Fix booking click broken: restore onClick, fix drag vs click detection

Removed onClick broke the detail panel. Now:
- onClick restored on booking block (opens panel on simple click)
- didDragRef flag prevents panel opening after a drag completes
- handleMouseUp no longer calls setSelectedBooking (onClick handles it)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/components/calendar/BookingCalendar.tsx

@@ -87,6 +87,7 @@ export function BookingCalendar({ rooms, bookings, onBookingCreate, onBookingUpd
   const moveStartPos = useRef<{ x: number; y: number } | null>(null)
   const movingBookingRef = useRef<Booking | null>(null)
   const moveTargetRoomIdRef = useRef<string | null>(null)
+  const didDragRef = useRef(false)
   movingBookingRef.current = movingBooking
   moveTargetRoomIdRef.current = moveTargetRoomId
 
@@ -179,6 +180,7 @@ export function BookingCalendar({ rooms, bookings, onBookingCreate, onBookingUpd
     if (mb) {
       // Was dragging a booking to another room
       if (targetRoom && targetRoom !== mb.roomId) {
+        didDragRef.current = true
         onBookingUpdate(mb.id, { roomId: targetRoom })
       }
       setMovingBooking(null)
@@ -188,12 +190,10 @@ export function BookingCalendar({ rooms, bookings, onBookingCreate, onBookingUpd
       return
     }
 
+    // No drag — clear pending refs; onClick on booking block will open the panel
     if (pendingMoveBooking.current) {
-      // Mouse went up without moving — treat as click
-      setSelectedBooking(pendingMoveBooking.current)
       pendingMoveBooking.current = null
       moveStartPos.current = null
-      return
     }
 
     if (!dragStart || dragEnd === null) return
@@ -526,6 +526,11 @@ export function BookingCalendar({ rooms, bookings, onBookingCreate, onBookingUpd
                             pendingMoveBooking.current = booking
                             moveStartPos.current = { x: e.clientX, y: e.clientY }
                           }}
+                          onClick={(e) => {
+                            e.stopPropagation()
+                            if (didDragRef.current) { didDragRef.current = false; return }
+                            setSelectedBooking(booking)
+                          }}
                           title={`${booking.guestName} • ${booking.checkIn}${hourlyMatch ? ` ${hourlyMatch[1]}:00–${hourlyMatch[2]}:00` : ` – ${booking.checkOut}`}${isUnpaid ? ' • Не оплачено' : ''}`}
                         >
                           {isUnpaid && (