feat: shared GroupCard component, admin status select, schedule level filter

- Extract shared GroupCard component used by both Schedule GroupView and TeamProfile
- Admin schedule: replace hasSlots/recruiting toggles with single Status select
- User schedule: add level filter pills (Начинающий/Без опыта, Продвинутый)
- Consistent group card styling across schedule and trainer bio views

src/app/admin/schedule/page.tsx

@@ -2,7 +2,7 @@
 
 import { useState, useEffect, useRef, useCallback, useMemo } from "react";
 import { SectionEditor } from "../_components/SectionEditor";
-import { InputField, SelectField, TimeRangeField, ToggleField } from "../_components/FormField";
+import { InputField, SelectField, TimeRangeField } from "../_components/FormField";
 import { Plus, X, Trash2 } from "lucide-react";
 import { adminFetch } from "@/lib/csrf";
 import type { ScheduleLocation, ScheduleDay, ScheduleClass } from "@/types/content";
@@ -32,6 +32,13 @@ const LEVELS = [
   { value: "Продвинутый", label: "Продвинутый" },
 ];
 
+const STATUS_OPTIONS = [
+  { value: "", label: "Без статуса" },
+  { value: "hasSlots", label: "Есть места" },
+  { value: "recruiting", label: "Набор открыт" },
+  { value: "both", label: "Есть места + Набор" },
+];
+
 const GROUP_PALETTE = [
   "bg-rose-500/80 border-rose-400",
   "bg-orange-500/80 border-orange-400",
@@ -477,18 +484,16 @@ function ClassModal({
             onChange={(v) => setDraft({ ...draft, level: v || undefined })}
             options={LEVELS}
           />
-          <div className="flex gap-6">
-            <ToggleField
-              label="Есть места"
-              checked={draft.hasSlots ?? false}
-              onChange={(v) => setDraft({ ...draft, hasSlots: v })}
-            />
-            <ToggleField
-              label="Набор открыт"
-              checked={draft.recruiting ?? false}
-              onChange={(v) => setDraft({ ...draft, recruiting: v })}
-            />
-          </div>
+          <SelectField
+            label="Статус"
+            value={draft.hasSlots && draft.recruiting ? "both" : draft.recruiting ? "recruiting" : draft.hasSlots ? "hasSlots" : ""}
+            onChange={(v) => setDraft({
+              ...draft,
+              hasSlots: v === "hasSlots" || v === "both",
+              recruiting: v === "recruiting" || v === "both",
+            })}
+            options={STATUS_OPTIONS}
+          />
         </div>
 
         {/* Overlap warning */}