fix: schedule status labels, Open Day halls, unsaved data guards

Schedule:
- Status badges use admin config labels (not hardcoded text) everywhere
- DayCard: level badge moved next to status badge
- Single location: hide "Все студии" tab, auto-select the only hall
- Group view: hide per-card address when all share same location
- Filter tooltip z-index fixed (above dropdowns)
- Trainer bio: status labels from config, not raw keys

Open Day:
- Hall name + address shown in schedule grid headers
- Only one class card editable at a time (edit/create mutually exclusive)
- Bigger action buttons (cancel/delete) on class cards
- Create as empty draft (not pre-filled with published status)
- Fix discount threshold input (allow delete to empty)
- Skip auto-save during partial date input

Admin:
- SectionEditor: unsaved data guard (force-save before navigation)
- Open Day + Team: same navigation guards
- Contact: removed working hours field
- TimeRangeField: allow end time hour changes
- Schedule cards: visible borders, 90min default duration
- Trainer bio: RichTextarea for description
- Open Day: RichTextarea for description

src/components/ui/GroupCard.tsx

@@ -62,13 +62,12 @@ export function GroupCard({
     <>
       <span className={`${dot} shrink-0 rounded-full ${dotColor}`} />
       <span className={`${typeCls} font-semibold text-white/90`}>{type}</span>
-      {levelBadge}
     </>
   );
 
   return (
     <div className="flex flex-col flex-1 gap-1.5">
-      {/* Type + level + status badges + extras */}
+      {/* Type + address + level + status badges */}
       <div className="flex items-center gap-1.5 flex-wrap">
         {onTypeClick ? (
           <button onClick={onTypeClick} className="flex items-center gap-1.5 cursor-pointer">
@@ -83,11 +82,10 @@ export function GroupCard({
             {shortAddress(address || location || "")}
           </span>
         )}
-        {hasSlots && <ScheduleBadge size={compact ? "sm" : "md"}>есть места</ScheduleBadge>}
-        {recruiting && <ScheduleBadge size={compact ? "sm" : "md"}>набор</ScheduleBadge>}
-        {status && status !== "hasSlots" && status !== "recruiting" && (
+        {status && (
           <ScheduleBadge size={compact ? "sm" : "md"}>{statusLabel || status}</ScheduleBadge>
         )}
+        {levelBadge}
         {extraBadges}
       </div>