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/sections/OpenDay.tsx

@@ -2,12 +2,13 @@
 
 import { useState, useMemo } from "react";
 import Image from "next/image";
-import { Calendar, Sparkles, User } from "lucide-react";
+import { Calendar, Sparkles, User, MapPin } from "lucide-react";
 import { SectionHeading } from "@/components/ui/SectionHeading";
 import { Reveal } from "@/components/ui/Reveal";
 import { SignupModal } from "@/components/ui/SignupModal";
 import type { OpenDayEvent, OpenDayClass } from "@/lib/openDay";
-import type { SiteContent } from "@/types";
+import type { SiteContent, ScheduleLocation } from "@/types";
+import { formatMarkup } from "@/lib/markup";
 
 interface OpenDayProps {
   data: {
@@ -16,6 +17,7 @@ interface OpenDayProps {
   };
   popups?: SiteContent["popups"];
   teamMembers?: { name: string; image: string }[];
+  locations?: ScheduleLocation[];
 }
 
 function formatDateRu(dateStr: string): string {
@@ -27,7 +29,7 @@ function formatDateRu(dateStr: string): string {
   });
 }
 
-export function OpenDay({ data, popups, teamMembers }: OpenDayProps) {
+export function OpenDay({ data, popups, teamMembers, locations }: OpenDayProps) {
   const { event, classes } = data;
   const [signup, setSignup] = useState<{ classId: number; label: string } | null>(null);
 
@@ -57,6 +59,17 @@ export function OpenDay({ data, popups, teamMembers }: OpenDayProps) {
 
   const halls = Object.keys(hallGroups);
 
+  // Map hall name → address from schedule locations
+  const hallAddress = useMemo(() => {
+    const map: Record<string, string> = {};
+    if (locations) {
+      for (const loc of locations) {
+        if (loc.name && loc.address) map[loc.name] = loc.address;
+      }
+    }
+    return map;
+  }, [locations]);
+
   if (classes.length === 0) return null;
 
   return (
@@ -93,9 +106,9 @@ export function OpenDay({ data, popups, teamMembers }: OpenDayProps) {
 
         {event.description && (
           <Reveal>
-            <p className="mt-4 text-center text-sm text-neutral-400 max-w-2xl mx-auto">
-              {event.description}
-            </p>
+            <div className="mt-4 text-center text-sm text-neutral-400 max-w-2xl mx-auto">
+              {formatMarkup(event.description)}
+            </div>
           </Reveal>
         )}
 
@@ -105,7 +118,15 @@ export function OpenDay({ data, popups, teamMembers }: OpenDayProps) {
             // Single hall — simple list
             <Reveal>
               <div className="max-w-lg mx-auto space-y-3">
-                <h3 className="text-sm font-medium text-neutral-400 text-center">{halls[0]}</h3>
+                <div className="text-center mb-4">
+                  <h3 className="text-base font-semibold text-white">{halls[0]}</h3>
+                  {hallAddress[halls[0]] && (
+                    <p className="text-sm text-gold/70 mt-0.5 flex items-center justify-center gap-1.5">
+                      <MapPin size={13} />
+                      {hallAddress[halls[0]]}
+                    </p>
+                  )}
+                </div>
                 {hallGroups[halls[0]].map((cls) => (
                   <ClassCard
                     key={cls.id}
@@ -123,7 +144,15 @@ export function OpenDay({ data, popups, teamMembers }: OpenDayProps) {
               {halls.map((hall) => (
                 <Reveal key={hall}>
                   <div>
-                    <h3 className="text-sm font-medium text-neutral-400 mb-3 text-center">{hall}</h3>
+                    <div className="text-center mb-4 rounded-lg bg-white/[0.03] border border-white/[0.06] py-3 px-4">
+                      <h3 className="text-base font-semibold text-white">{hall}</h3>
+                      {hallAddress[hall] && (
+                        <p className="text-sm text-gold/70 mt-0.5 flex items-center justify-center gap-1.5">
+                          <MapPin size={13} />
+                          {hallAddress[hall]}
+                        </p>
+                      )}
+                    </div>
                     <div className="space-y-3">
                       {hallGroups[hall].map((cls) => (
                         <ClassCard