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/page.tsx

@@ -45,8 +45,8 @@ export default function HomePage() {
             />
           )}
           {content?.classes && <Classes data={content.classes} />}
-          {content?.team && <Team data={content.team} schedule={content.schedule?.locations} />}
-          {openDayData && content?.popups && <OpenDay data={openDayData} popups={content.popups} teamMembers={content.team?.members ?? []} />}
+          {content?.team && <Team data={content.team} schedule={content.schedule?.locations} scheduleConfig={content.scheduleConfig} />}
+          {openDayData && content?.popups && <OpenDay data={openDayData} popups={content.popups} teamMembers={content.team?.members ?? []} locations={content.schedule?.locations} />}
           {content?.schedule && <Schedule data={content.schedule} scheduleConfig={content.scheduleConfig} classItems={content.classes?.items ?? []} teamMembers={content.team?.members ?? []} />}
           {content?.pricing && <Pricing data={content.pricing} />}
           {content?.masterClasses && <MasterClasses data={content.masterClasses} regCounts={mcRegCounts} popups={content.popups} />}