fix: toggle CSS + guest autocomplete in BookingModal rental tab

- Toggle: add type=button, overflow-hidden, p-0, explicit left-[2px] + translate-x-[18px] pattern for reliable knob positioning across all toggles
- Guest field in BookingModal rental tab: add debounced DB search (api.guests.list) + suggestions dropdown (same as RentalBookingModal)

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

src/components/rental/RentalBookingModal.tsx

@@ -261,16 +261,17 @@ export function RentalBookingModal({
               <span className="text-xs text-slate-400">Есть частичные брони</span>
             )}
             <button
+              type="button"
               onClick={() => (!hasTimedConflict && !hasFullDayConflict) && setIsFullDay(v => !v)}
               className={cn(
-                'relative rounded-full transition-colors shrink-0',
+                'relative rounded-full overflow-hidden transition-colors shrink-0 p-0',
                 isFullDay ? 'bg-brand-600' : 'bg-slate-200 dark:bg-slate-600',
               )}
               style={{ height: 22, width: 40 }}
             >
               <span className={cn(
-                'absolute top-0.5 w-4 h-4 rounded-full bg-white shadow transition-transform',
-                isFullDay ? 'translate-x-5' : 'translate-x-0.5',
+                'absolute top-[3px] left-[2px] w-4 h-4 rounded-full bg-white shadow transition-transform duration-200',
+                isFullDay ? 'translate-x-[18px]' : 'translate-x-0',
               )} />
             </button>
           </div>