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/app/admin/schedule/page.tsx

@@ -221,10 +221,10 @@ function ClassBlock({
           ? { backgroundImage: "repeating-linear-gradient(135deg, transparent, transparent 4px, rgba(239,68,68,0.35) 4px, rgba(239,68,68,0.35) 8px)" }
           : {}),
       }}
-      className={`absolute left-1 right-1 rounded-md border-l-3 px-2 py-0.5 text-left text-xs text-white cursor-grab active:cursor-grabbing overflow-hidden select-none ${colors} ${
+      className={`absolute left-1 right-1 rounded-md border border-white/20 border-l-3 px-2 py-0.5 text-left text-xs text-white cursor-grab active:cursor-grabbing overflow-hidden select-none ${colors} ${
         isOverlapping ? "ring-2 ring-red-500 ring-offset-1 ring-offset-neutral-900" : ""
-      } ${isDragging ? "opacity-30" : "hover:opacity-90"}`}
-      title={`${cls.time}\n${cls.type}\n${cls.trainer}${cls.level ? ` (${cls.level})` : ""}`}
+      } ${isDragging ? "opacity-30" : "hover:opacity-90 hover:border-white/40"}`}
+      title={`${cls.time}\n${cls.type}\n${cls.trainer}${cls.level ? ` · ${cls.level}` : ""}${cls.status ? ` · ${cls.status}` : ""}`}
     >
       <div className="font-semibold truncate leading-tight">
         {parts[0]?.trim()}–{parts[1]?.trim()}
@@ -235,6 +235,11 @@ function ClassBlock({
       {height > 48 && (
         <div className="truncate text-white/70 leading-tight">{cls.trainer}</div>
       )}
+      {height > 64 && (cls.level || cls.status) && (
+        <div className="truncate text-white/50 leading-tight text-[10px]">
+          {[cls.level, cls.status].filter(Boolean).join(" · ")}
+        </div>
+      )}
       {isOverlapping && (
         <div className="text-red-200 font-bold leading-tight">⚠ Пересечение</div>
       )}
@@ -876,10 +881,10 @@ function CalendarGrid({
       const y = e.clientY - rect.top;
       const rawMin = yToMinutes(y);
       snapped = Math.round((rawMin - 30) / SNAP_MINUTES) * SNAP_MINUTES;
-      snapped = Math.max(HOUR_START * 60, Math.min(snapped, HOUR_END * 60 - 60));
+      snapped = Math.max(HOUR_START * 60, Math.min(snapped, HOUR_END * 60 - 90));
     }
     const startTime = formatMinutes(snapped);
-    const endTime = formatMinutes(snapped + 60);
+    const endTime = formatMinutes(snapped + 90);
 
     setHover(null);
     setNewClass({
@@ -1005,8 +1010,8 @@ function CalendarGrid({
               {sortedDays.map((day, di) => {
                 const showHover = hover && hover.dayIndex === di && !drag && !newClass && !editingClass;
                 const hoverTop = showHover ? minutesToY(hover.startMin) : 0;
-                const hoverHeight = HOUR_HEIGHT; // 1 hour
-                const hoverEndMin = showHover ? hover.startMin + 60 : 0;
+                const hoverHeight = HOUR_HEIGHT * 1.5; // 1.5 hours
+                const hoverEndMin = showHover ? hover.startMin + 90 : 0;
 
                 return (
                   <div
@@ -1026,7 +1031,7 @@ function CalendarGrid({
                       const rawMin = yToMinutes(y);
                       // Snap to 15-min and offset so the block is centered on cursor
                       const snapped = Math.round((rawMin - 30) / SNAP_MINUTES) * SNAP_MINUTES;
-                      const clamped = Math.max(HOUR_START * 60, Math.min(snapped, HOUR_END * 60 - 60));
+                      const clamped = Math.max(HOUR_START * 60, Math.min(snapped, HOUR_END * 60 - 90));
                       setHover({ dayIndex: di, startMin: clamped });
                     }}
                     onMouseLeave={() => setHover(null)}