feat: single ФИО field with autocomplete replaces 3 separate name inputs

- BookingModal (room tab): replace Фамилия/Имя/Отчество grid with single 'ФИО *' input; parseFullName() splits by spaces into last/first/middle; DB search via api.guests.list (debounced 300ms); dropdown shows current bookings + DB guests with phone/email autofill
- BookingDetailPanel: merge Фамилия (with autocomplete) + Имя + Отчество into single ФИО * input; existing acQuery/acResults infrastructure reused; parseFio() updates all 3 bgForm fields on every keystroke; openEditForm initializes ФИО from full name
- RentalBookingModal + BookingModal rental tab: include middleName when displaying DB guest results and when setting guestName on selection; update type to include middleName field

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

src/components/rental/RentalBookingModal.tsx

@@ -73,7 +73,7 @@ export function RentalBookingModal({
   const nameRef = useRef<HTMLDivElement>(null)
 
   // DB guest search
-  const [dbResults, setDbResults] = useState<{ id: string; firstName: string; lastName: string; phone: string | null }[]>([])
+  const [dbResults, setDbResults] = useState<{ id: string; firstName: string; lastName: string; middleName: string | null; phone: string | null }[]>([])
   const searchTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null)
   const [saving, setSaving] = useState(false)
 
@@ -395,13 +395,15 @@ export function RentalBookingModal({
                     })}
                     {/* DB guest search results */}
                     {dbResults
-                      .filter(g => !filtered.some(b => b.guestName === `${g.lastName} ${g.firstName}`))
-                      .map(g => (
+                      .filter(g => !filtered.some(b => b.guestName.startsWith(g.lastName)))
+                      .map(g => {
+                        const fullName = [g.lastName, g.firstName, g.middleName].filter(Boolean).join(' ')
+                        return (
                         <button
                           key={g.id}
                           type="button"
                           onMouseDown={() => {
-                            setGuestName(`${g.lastName} ${g.firstName}`)
+                            setGuestName(fullName)
                             setGuestPhone(g.phone ?? '')
                             setShowSuggestions(false)
                             setDbResults([])
@@ -411,13 +413,13 @@ export function RentalBookingModal({
                         >
                           <div className="w-2 h-2 rounded-full shrink-0 bg-slate-400" />
                           <div className="min-w-0 flex-1">
-                            <p className="text-sm font-medium text-slate-800 dark:text-slate-200 truncate">{g.lastName} {g.firstName}</p>
+                            <p className="text-sm font-medium text-slate-800 dark:text-slate-200 truncate">{fullName}</p>
                             <p className="text-[11px] text-slate-400 truncate">
                               {g.phone ?? 'нет телефона'}
                             </p>
                           </div>
                         </button>
-                      ))
+                      )})
                     }
                   </div>
                 )}