Improve ZXDB releases list

Link release titles to release detail, add magref count
badges, and show other releases on release detail.

Signed-off-by: codex@lucy.xalior.com

src/app/zxdb/releases/ReleasesExplorer.tsx

@@ -11,6 +11,7 @@ type Item = {
   releaseSeq: number;
   entryTitle: string;
   year: number | null;
+  magrefCount: number;
 };
 
 type Paged<T> = {
@@ -337,6 +338,7 @@ export default function ReleasesExplorer({
                   <th style={{width: 80}}>Entry ID</th>
                   <th>Title</th>
                   <th style={{width: 140}}>Release #</th>
+                  <th style={{width: 110}}>Places</th>
                   <th style={{width: 100}}>Year</th>
                 </tr>
               </thead>
@@ -347,13 +349,24 @@ export default function ReleasesExplorer({
                       <EntryLink id={it.entryId} />
                     </td>
                     <td>
-                      <EntryLink id={it.entryId} title={it.entryTitle} />
+                      <div className="d-flex flex-column gap-1">
+                        <Link href={`/zxdb/releases/${it.entryId}/${it.releaseSeq}`} className="link-underline link-underline-opacity-0">
+                          {it.entryTitle || `Entry #${it.entryId}`}
+                        </Link>
+                      </div>
                     </td>
                     <td>
                       <Link href={`/zxdb/releases/${it.entryId}/${it.releaseSeq}`}>
                         #{it.releaseSeq}
                       </Link>
                     </td>
+                    <td>
+                      {it.magrefCount > 0 ? (
+                        <span className="badge text-bg-secondary">{it.magrefCount}</span>
+                      ) : (
+                        <span className="text-secondary">-</span>
+                      )}
+                    </td>
                     <td>{it.year ?? <span className="text-secondary">-</span>}</td>
                   </tr>
                 ))}

src/app/zxdb/releases/[entryId]/[releaseSeq]/ReleaseDetail.tsx

@@ -9,6 +9,10 @@ type ReleaseDetailData = {
     title: string;
     issueId: number | null;
   };
+  entryReleases: Array<{
+    releaseSeq: number;
+    year: number | null;
+  }>;
   release: {
     entryId: number;
     releaseSeq: number;
@@ -167,6 +171,7 @@ export default function ReleaseDetailClient({ data }: { data: ReleaseDetailData
   if (!data) return <div className="alert alert-warning">Not found</div>;
 
   const magazineGroups = groupMagazineRefs(data.magazineRefs);
+  const otherReleases = data.entryReleases.filter((r) => r.releaseSeq !== data.release.releaseSeq);
 
   return (
     <div>
@@ -265,6 +270,26 @@ export default function ReleaseDetailClient({ data }: { data: ReleaseDetailData
 
       <hr />
 
+      <div>
+        <h5>Other Releases</h5>
+        {otherReleases.length === 0 && <div className="text-secondary">No other releases</div>}
+        {otherReleases.length > 0 && (
+          <div className="d-flex flex-wrap gap-2">
+            {otherReleases.map((r) => (
+              <Link
+                key={r.releaseSeq}
+                className="badge text-bg-light text-decoration-none"
+                href={`/zxdb/releases/${data.entry.id}/${r.releaseSeq}`}
+              >
+                #{r.releaseSeq}{r.year != null ? ` · ${r.year}` : ""}
+              </Link>
+            ))}
+          </div>
+        )}
+      </div>
+
+      <hr />
+
       <div>
         <h5>Places (Magazines)</h5>
         {magazineGroups.length === 0 && <div className="text-secondary">No magazine references</div>}