Add missing admin action files and navigation links

- Add 11 missing server action files: badges, bulk-users, catalog, catalog-bc, catalog-items, import-badges, import-furni, multi-account-detect, permissions, rooms, soundtracks
- Add missing admin navigation links: tickets, sounds, translations, import, radio sub-pages
- Add translation keys for all new navigation items

src/app/admin/catalog/[id]/catalog-items-table/song-picker.tsx

@@ -0,0 +1,94 @@
+'use client'
+
+import { Loader2, Music } from 'lucide-react'
+import { useEffect, useState } from 'react'
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from '@/components/ui/select'
+import {
+  getCachedSongPickerOptions,
+  loadSongPickerOptions,
+  type SoundtrackOption,
+} from '@/lib/client-cache/song-picker-cache'
+
+// Re-export so existing `import { invalidateSongPickerCache } from '.../song-picker'`
+// callsites keep working. New code should import from the lib module directly.
+export { invalidateSongPickerCache } from '@/lib/client-cache/song-picker-cache'
+
+interface Props {
+  value: number
+  onChange: (id: number) => void
+  disabled?: boolean
+}
+
+function formatLength(seconds: number): string {
+  if (!seconds || seconds <= 0) return ''
+  const m = Math.floor(seconds / 60)
+  const s = seconds % 60
+  return `${m}:${String(s).padStart(2, '0')}`
+}
+
+export function SongPicker({ value, onChange, disabled }: Props) {
+  const initial = getCachedSongPickerOptions()
+  const [options, setOptions] = useState<SoundtrackOption[]>(initial ?? [])
+  const [loading, setLoading] = useState(!initial)
+
+  useEffect(() => {
+    if (getCachedSongPickerOptions()) return
+    let cancelled = false
+    loadSongPickerOptions()
+      .then((items) => {
+        if (!cancelled) setOptions(items)
+      })
+      .catch(() => {
+        if (!cancelled) setOptions([])
+      })
+      .finally(() => {
+        if (!cancelled) setLoading(false)
+      })
+    return () => {
+      cancelled = true
+    }
+  }, [])
+
+  return (
+    <Select
+      value={String(value)}
+      onValueChange={(v) => onChange(parseInt(v, 10) || 0)}
+      disabled={disabled || loading}
+    >
+      <SelectTrigger>
+        {loading ? (
+          <span className="flex items-center gap-2 text-muted-foreground">
+            <Loader2 className="h-3 w-3 animate-spin" /> Loading…
+          </span>
+        ) : (
+          <SelectValue placeholder="No song" />
+        )}
+      </SelectTrigger>
+      <SelectContent>
+        <SelectItem value="0">
+          <span className="text-muted-foreground">— No song —</span>
+        </SelectItem>
+        {options.map((opt) => (
+          <SelectItem key={opt.id} value={String(opt.id)}>
+            <span className="inline-flex items-center gap-2">
+              <Music className="h-3 w-3 text-muted-foreground" />
+              <span className="font-medium">{opt.name}</span>
+              {opt.author && <span className="text-xs text-muted-foreground">— {opt.author}</span>}
+              {opt.length > 0 && (
+                <span className="text-xs text-muted-foreground font-mono">
+                  {formatLength(opt.length)}
+                </span>
+              )}
+            </span>
+          </SelectItem>
+        ))}
+      </SelectContent>
+    </Select>
+  )
+}