feat: add UI components for alert dialog, badge, checkbox, dialog, label, select, sheet, table, textarea

- Implemented AlertDialog component with overlay, content, header, footer, title, description, action, and cancel functionalities.
- Created Badge component with variant support for different styles.
- Developed Checkbox component with custom styling and indicator.
- Added Dialog component with trigger, close, overlay, content, header, footer, title, and description.
- Introduced Label component for form elements.
- Built Select component with trigger, content, group, item, label, separator, and scroll buttons.
- Created Sheet component with trigger, close, overlay, content, header, footer, title, and description.
- Implemented Table component with header, body, footer, row, head, cell, and caption.
- Added Textarea component with custom styling.
- Established API service for game management with CRUD operations and metadata search functionalities.
- Updated dependencies in package lock files.

backend/src/services/importService.ts

@@ -1,11 +1,11 @@
 /**
  * Servicio: importService
  *
- * Orquesta el proceso de importación de ROMs desde un directorio:
+ * Orquesta el proceso de importación de juegos desde un directorio:
  * 1. Lista archivos usando `scanDirectory`.
  * 2. Calcula hashes y tamaño con `computeHashes` (streaming).
  * 3. Normaliza el nombre a un `slug` y, si `persist` es true, crea/obtiene
- *    el `Game` correspondiente y hace `upsert` del `RomFile` en Prisma.
+ *    el `Game` correspondiente con source="rom".
  *
  * `importDirectory` devuelve un resumen con contadores `{ processed, createdCount, upserted }`.
  */
@@ -89,31 +89,44 @@ export async function importDirectory(
       const baseName = path.parse(file.filename).name;
       const slug = createSlug(baseName);
 
-      let game = null;
-
       if (persist) {
-        game = await prisma.game.findUnique({ where: { slug } });
-
-        if (!game) {
-          game = await prisma.game.create({ data: { title: baseName, slug } });
-          createdCount++;
-        }
-
-        await prisma.romFile.upsert({
-          where: { checksum },
-          update: { lastSeenAt: new Date(), size, hashes: JSON.stringify(hashes) },
-          create: {
-            path: file.path,
-            filename: file.filename,
-            checksum,
-            size,
-            format: file.format,
-            hashes: JSON.stringify(hashes),
-            gameId: game?.id,
+        // Buscar si ya existe un juego con este checksum (source=rom)
+        let game = await prisma.game.findFirst({
+          where: {
+            source: 'rom',
+            romChecksum: checksum,
           },
         });
 
-        upserted++;
+        if (!game) {
+          // Crear nuevo juego con source="rom"
+          game = await prisma.game.create({
+            data: {
+              title: baseName,
+              slug: `${slug}-${Date.now()}`,
+              source: 'rom',
+              romPath: file.path,
+              romFilename: file.filename,
+              romSize: size,
+              romChecksum: checksum,
+              romFormat: file.format,
+              romHashes: JSON.stringify(hashes),
+              addedAt: new Date(),
+              lastSeenAt: new Date(),
+            },
+          });
+          createdCount++;
+        } else {
+          // Actualizar lastSeenAt si ya existe
+          game = await prisma.game.update({
+            where: { id: game.id },
+            data: {
+              lastSeenAt: new Date(),
+              romHashes: JSON.stringify(hashes),
+            },
+          });
+          upserted++;
+        }
       }
     } catch (err) {
       logger.warn?.(