refactor: remove caching-related API endpoints and configurations, update preferences structure, and clean up unused services

src/app/api/komga/home/route.ts

@@ -35,34 +35,3 @@ export async function GET() {
     );
   }
 }
-
-export async function DELETE() {
-  try {
-    await HomeService.invalidateHomeCache();
-    return NextResponse.json({ success: true });
-  } catch (error) {
-    logger.error({ err: error }, "API Home - Erreur lors de l'invalidation du cache:");
-    if (error instanceof AppError) {
-      return NextResponse.json(
-        {
-          error: {
-            code: error.code,
-            name: "Cache invalidation error",
-            message: getErrorMessage(error.code),
-          },
-        },
-        { status: 500 }
-      );
-    }
-    return NextResponse.json(
-      {
-        error: {
-          code: ERROR_CODES.CACHE.DELETE_ERROR,
-          name: "Cache invalidation error",
-          message: getErrorMessage(ERROR_CODES.CACHE.DELETE_ERROR),
-        },
-      },
-      { status: 500 }
-    );
-  }
-}