feat(library): add game links, auditor queue, audit log and filter

LinkGameDialog (user request or auditor link), EditionsCard on the
details page, LinkQueuePage and AuditLogPage for auditors with paging,
hideDuplicates filter and editions badge in the library, audit menu
entries, de/en texts.

src/components/EditionsCard.jsx

@@ -0,0 +1,72 @@
+import {useState} from 'react';
+import {Link} from 'react-router-dom';
+import {useTranslation} from 'react-i18next';
+import {Layers, Link2Off} from 'lucide-react';
+import {toast} from 'sonner';
+
+import {Button} from '@/components/ui/button';
+import {Card} from '@/components/ui/card';
+import GameStatusBadge from './GameStatusBadge.jsx';
+import {unlinkGame} from '../utils/links.js';
+import {platformLabel} from '../utils/platforms.js';
+
+/**
+ * The other editions of this game in the own library, and the buttons to ask for a link (everyone) or to unlink
+ * (auditor). Shown on every game: a request must be possible from any game.
+ */
+export default function EditionsCard({game, auditor, onRequest, onChanged}) {
+    const {t} = useTranslation();
+    const [busy, setBusy] = useState(false);
+
+    const unlink = async () => {
+        setBusy(true);
+        try {
+            const response = await unlinkGame(game.appid);
+            if (response.status === 401) return;
+            if (response.ok) {
+                toast.success(t('LINKS.UNLINKED'));
+                onChanged();
+            } else {
+                toast.error(t('LINKS.ERROR'));
+            }
+        } catch (err) {
+            console.error('Unlink error:', err);
+            toast.error(t('INFO.ERROR.NETWORK_FAILURE'));
+        } finally {
+            setBusy(false);
+        }
+    };
+
+    return (
+        <Card className="gap-3 p-4">
+            {game.editions?.length > 0 && (
+                <div className="space-y-2 text-sm">
+                    <p className="font-medium">{t('LINKS.ALSO_IN_LIBRARY')}</p>
+                    <ul className="space-y-1">
+                        {game.editions.map((edition) => (
+                            <li key={edition.appid} className="flex flex-wrap items-center gap-2">
+                                <Link to={`/library/${edition.appid}`} className="hover:text-primary hover:underline">
+                                    {edition.name}
+                                </Link>
+                                {platformLabel(edition) && (
+                                    <span className="text-muted-foreground">({platformLabel(edition)})</span>
+                                )}
+                                <GameStatusBadge status={edition.status} compact/>
+                            </li>
+                        ))}
+                    </ul>
+                </div>
+            )}
+            <div className="flex flex-wrap gap-2">
+                <Button type="button" variant="outline" size="sm" onClick={onRequest}>
+                    <Layers/>{t(auditor ? 'LINKS.LINK_WITH' : 'LINKS.SAME_AS')}
+                </Button>
+                {auditor && game.linked && (
+                    <Button type="button" variant="outline" size="sm" disabled={busy} onClick={unlink}>
+                        <Link2Off/>{t('LINKS.UNLINK')}
+                    </Button>
+                )}
+            </div>
+        </Card>
+    );
+}