feat: add photo folder filter to gallery and migrate to docker image registry

src/app/page.tsx

@@ -22,8 +22,18 @@ async function getInitialMedia() {
       nextCursor = extra!.id;
     }
 
+    // Fetch voting status for the client
     const settings = await prisma.appSettings.findUnique({ where: { id: 1 } });
 
+    // Fetch available directories for filtering
+    const dirs = await prisma.mediaItem.findMany({
+      where: { published: true },
+      select: { directory: true },
+      distinct: ['directory'],
+      orderBy: { directory: 'asc' }
+    });
+    const directories = dirs.map(d => d.directory).filter(Boolean);
+
     // Serialize BigInt values for client
     return {
       items: JSON.parse(JSON.stringify(items, (_key, value) =>
@@ -31,10 +41,11 @@ async function getInitialMedia() {
       )),
       nextCursor,
       votingOpen: settings?.votingOpen ?? false,
+      directories,
     };
   } catch (error) {
     console.error('[Page] Error fetching initial media:', error);
-    return { items: [], nextCursor: null, votingOpen: false };
+    return { items: [], nextCursor: null, votingOpen: false, directories: [] };
   }
 }
 
@@ -48,6 +59,7 @@ export default async function HomePage() {
         initialItems={data.items}
         initialCursor={data.nextCursor}
         initialVotingOpen={data.votingOpen}
+        directories={data.directories}
       />
     </main>
   );