feat: schedule filters overhaul, local fonts, configurable statuses/levels

Schedule filters:
- Airbnb-style filter modal with sections: directions, trainer, status, level, days, time
- Multi-select trainer filter with search input
- Custom time range (from-to) with preset shortcuts
- Gold tag design for class types, statuses, and levels
- Hover tooltips on level/status options with descriptions from config
- Filter icon button inline with view toggle (По дням / По группам)

Admin schedule:
- Configurable experience levels and statuses (add/edit/reorder/delete)
- New scheduleConfig DB section with auto-save
- Status/level dropdowns in class editor read from config
- Status select built dynamically from config
- New status field on ScheduleClass for custom statuses

Other:
- Local fonts (Inter + Oswald) bundled in public/fonts — no Google Fonts dependency
- SelectField combobox: search in main input field, no separate search inside dropdown
- Fix carousel trainer label flash on drag release

src/app/page.tsx

@@ -45,7 +45,7 @@ export default function HomePage() {
           <Classes data={content.classes} />
           <Team data={content.team} schedule={content.schedule.locations} />
           {openDayData && <OpenDay data={openDayData} popups={content.popups} teamMembers={content.team.members} />}
-          <Schedule data={content.schedule} classItems={content.classes.items} teamMembers={content.team.members} />
+          <Schedule data={content.schedule} scheduleConfig={content.scheduleConfig} classItems={content.classes.items} teamMembers={content.team.members} />
           <Pricing data={content.pricing} />
           <MasterClasses data={content.masterClasses} regCounts={mcRegCounts} popups={content.popups} />
           <News data={content.news} />