feat(hint): targets, automatic hints and formatting

Target fields on the admin hints page. The dashboard shows the four
automatic hints after admin hints when their condition is true, using
data Core already serves. HintText renders **bold** and safe links (app
path or https) as React elements, never HTML, in hints and news.
Auto-close without tick hides for this session, X for 7 days, tick + X
for good.

src/pages/Dashboard.jsx

@@ -41,14 +41,10 @@ const Dashboard = () => {
     const [editing, setEditing] = useState(false);
     const runSave = useSaveResponse();
     const layout = normalizeLayout(userData?.settings?.dashboardTiles, DASHBOARD_TILES, DEFAULT_DASHBOARD);
-    // The stat groups of the shown stat tiles, and TREND for the pile card. Waits for the saved layout in /me.
-    const statGroups = [...new Set([
-        ...layout.map((tile) => statGroup(tile.id)).filter(Boolean),
-        ...(layout.some((tile) => tile.id === 'PILE_OF_SHAME') ? ['TREND'] : []),
-    ])].sort();
-    // No groups would mean "all groups" to the stats endpoint.
-    const hasStatGroups = statGroups.length > 0;
-    const stats = useUserStats(statGroups, userData != null && hasStatGroups);
+    // The stat groups of the shown stat tiles, and TREND for the pile card and the "pile grew" hint. Waits for the
+    // saved layout in /me.
+    const statGroups = [...new Set([...layout.map((tile) => statGroup(tile.id)).filter(Boolean), 'TREND'])].sort();
+    const stats = useUserStats(statGroups, userData != null);
 
     const shuffleSuggestion = async () => {
         setShuffling(true);
@@ -70,7 +66,7 @@ const Dashboard = () => {
         expectInitialSync: hasSteamId && steamData.count === 0,
         onComplete: () => {
             reloadLibrary();
-            if (hasStatGroups) stats.reload();
+            stats.reload();
         },
     });
     const forceSync = useForceSync(sync.watch);
@@ -135,7 +131,8 @@ const Dashboard = () => {
                       defaultLayout={DEFAULT_DASHBOARD} onSave={saveLayout} onCancel={() => setEditing(false)}/>
             <WhatsNewDialog/>
             {/* Last child: space-y gives every other child a bottom margin, which would move the fixed card. */}
-            <DashboardHint/>
+            <DashboardHint user={userData} summary={summaryFailed ? null : summary ?? undefined}
+                           trend={stats.failed ? null : stats.stats ? stats.stats.trend ?? null : undefined}/>
         </PageContainer>
     );
 };