fix

src/api/mutator/custom-client.ts

 import Axios, { AxiosError, AxiosHeaders, AxiosRequestConfig, InternalAxiosRequestConfig } from "axios";
+import links from "@/links";
 import {
   ensureValidAdminAccessToken,
   refreshAdminAccessToken,
@@ -10,7 +11,7 @@ interface RetriableAxiosRequestConfig extends InternalAxiosRequestConfig {
 
 const createAxiosInstance = () => {
   const instance = Axios.create({
-    baseURL: `${process.env.NEXT_PUBLIC_BACKEND_HOST}/api/v1.0`,
+    baseURL: links.apiEndpoint,
     withCredentials: true,
   });
 

src/app/(main)/(home)/components/business-opportunities/components/card-news/index.tsx

 import { NewsItem } from "@/api/types/news";
-import BASE_URL from "@/links";
+import { resolveUploadUrl } from "@/links";
 import dayjs from "dayjs";
 import AppEditorContent from "@/components/shared/editor-content";
 import Link from "next/link";
@@ -12,7 +12,7 @@ function CardNews({ news }: { news: NewsItem }) {
       className="flex flex-row gap-2 mb-2 sm:gap-3 sm:mb-3"
     >
       <ImageNext
-        src={`${BASE_URL.imageEndpoint}${news.thumbnail}`}
+        src={resolveUploadUrl(news.thumbnail)}
         alt={news.title}
         className="aspect-3/2 object-cover"
         width={130}

src/app/(main)/(home)/components/events/components/card-event/index.tsx

 import { EventItem } from '@/api/types/event'
-import BASE_URL from '@/links'
+import { resolveUploadUrl } from '@/links'
 import dayjs from 'dayjs';
 import AppEditorContent from '@/components/shared/editor-content';
 import Link from "next/link";
@@ -12,7 +12,7 @@ function CardEvent({ event }: { event: EventItem }) {
       className='flex flex-row gap-2 mb-2 sm:gap-3 sm:mb-3 p-2 sm:p-3 border border-gray-200 bg-white rounded-md'
     >
       <ImageNext
-        src={`${BASE_URL.imageEndpoint}${event.image}`}
+        src={resolveUploadUrl(event.image)}
         alt={event.name}
         className='aspect-3/2 object-cover'
         width={130}
@@ -31,4 +31,4 @@ function CardEvent({ event }: { event: EventItem }) {
   );
 }
 
-export default CardEvent;
+export default CardEvent;
\ No newline at end of file

src/app/(main)/(home)/components/news/components/card-news/index.tsx

 import { NewsItem } from "@/api/types/news";
-import BASE_URL from "@/links";
+import { resolveUploadUrl } from "@/links";
 import dayjs from "dayjs";
 import AppEditorContent from "@/components/shared/editor-content";
 import Link from "next/link";
@@ -12,7 +12,7 @@ function CardNews({ news }: { news: NewsItem }) {
       className="flex flex-row gap-2 mb-2 sm:gap-3 sm:mb-3"
     >
       <ImageNext
-        src={`${BASE_URL.imageEndpoint}${news.thumbnail}`}
+        src={resolveUploadUrl(news.thumbnail)}
         alt={news.title}
         className="aspect-3/2 object-cover"
         width={130}

src/app/(main)/(home)/components/policies-and-laws/card-news/index.tsx

 import { NewsItem } from "@/api/types/news";
-import BASE_URL from "@/links";
+import { resolveUploadUrl } from "@/links";
 import dayjs from "dayjs";
 import Link from "next/link";
 import ImageNext from "@/components/shared/image-next";
@@ -11,7 +11,7 @@ function CardNews({ news }: { news: NewsItem }) {
       className="flex flex-row gap-2 mb-2 sm:gap-3 sm:mb-3"
     >
       <ImageNext
-        src={`${BASE_URL.imageEndpoint}${news.thumbnail}`}
+        src={resolveUploadUrl(news.thumbnail)}
         alt={news.title}
         className="aspect-3/2 object-cover"
         width={130}

src/app/(main)/(home)/lib/use-home-posts.ts

@@ -3,7 +3,7 @@
 import * as React from "react";
 import { useQuery } from "@tanstack/react-query";
 import { useCustomClient } from "@/api/mutator/custom-client";
-import Links from "@/links";
+import Links, { resolveUploadUrl } from "@/links";
 
 type RawHomeCategory = {
   id?: string | null;
@@ -153,9 +153,8 @@ const resolveAssetUrl = (value?: string | null) => {
   const trimmed = value?.trim();
 
   if (!trimmed) return "/thumbnail.png";
-  if (trimmed.startsWith("http://") || trimmed.startsWith("https://")) return trimmed;
 
-  return `${Links.imageEndpoint}${trimmed.replace(/^\/+/, "")}`;
+  return resolveUploadUrl(trimmed);
 };
 
 const sortByPublishedDesc = (items: HomePostItem[]) =>

src/app/(main)/[...slug]/templates/EventDetailPage.tsx

@@ -6,7 +6,7 @@ import { notFound, useParams } from "next/navigation";
 
 import dayjs from "dayjs";
 import parse from "html-react-parser";
-import BASE_URL from "@/links";
+import { resolveUploadUrl } from "@/links";
 
 import { useGetEvents } from "@/api/endpoints/event";
 import { EventApiResponse } from "@/api/types/event";
@@ -58,7 +58,7 @@ export default function EventDetailPage() {
                   {eventsDetail?.responseData?.rows[0].image ? (
                     <div className="w-full h-52 relative ">
                       <EventImage
-                        src={`${BASE_URL.imageEndpoint}${eventsDetail?.responseData?.rows[0].image}`}
+                        src={resolveUploadUrl(eventsDetail?.responseData?.rows[0].image)}
                         alt={eventsDetail?.responseData?.rows[0]?.name || "image"}
                       />
                     </div>

src/app/(main)/[...slug]/templates/data.ts

 import type { Category } from "@/api/models/category";
 import { useCustomClient } from "@/api/mutator/custom-client";
-import Links from "@/links";
+import Links, { resolveUploadUrl } from "@/links";
 import { getCategoryFallbackResponse } from "@/mockdata/categories";
 import type {
   DynamicCategoryMenuItem,
@@ -293,9 +293,8 @@ export function resolveDynamicPostImage(thumbnail?: DynamicPostThumbnail) {
   const value = thumbnail?.path ?? thumbnail?.original ?? thumbnail?.url ?? "";
 
   if (!value) return "/thumbnail.png";
-  if (value.startsWith("http://") || value.startsWith("https://")) return value;
 
-  return `${Links.imageEndpoint}${value.replace(/^\/+/, "")}`;
+  return resolveUploadUrl(value);
 }
 
 export function stripHtml(value?: string | null) {

src/app/admin/login/page.tsx

@@ -19,6 +19,7 @@ import { Checkbox } from "@/components/ui/checkbox";
 import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
 import logo from "@/assets/VCCI-HCM-logo-VN-2025.png";
+import links from "@/links";
 import { loginAdmin } from "@/lib/auth/admin-auth";
 import useAuthStore from "@/store/useAuthStore";
 
@@ -85,7 +86,7 @@ function getAuthErrorMessage(error: unknown, fallback: string) {
 }
 
 async function postAuthJson<TResponse, TBody>(path: string, body: TBody) {
-  const response = await fetch(`${process.env.NEXT_PUBLIC_BACKEND_HOST}/api/v1.0${path}`, {
+  const response = await fetch(`${links.apiEndpoint}${path}`, {
     method: "POST",
     headers: {
       "Content-Type": "application/json",

src/components/base/card-events/index.tsx

 
 import { EventItem } from '@/api/types/event';
-import Links from '@links/index'
+import { resolveUploadUrl } from '@links/index'
 import dayjs from 'dayjs';
 
 // Helper: remove <img> tags and extract plain text from HTML
@@ -27,7 +27,7 @@ const CardEvents = ({ event, link }: { event: EventItem, link: string }) => {
       className="flex flex-col hover:no-underline sm:flex-row gap-2 mb-6 bg-white rounded-lg shadow-sm p-4 border items-start min-w-0"
     >
       <img
-        src={`${Links.imageEndpoint}${event.image}`}
+        src={resolveUploadUrl(event.image)}
         alt={event.name}
         className="w-full sm:w-56 md:w-64 h-40 md:h-36 object-cover shrink-0"
         onError={(e) => {
@@ -48,4 +48,4 @@ const CardEvents = ({ event, link }: { event: EventItem, link: string }) => {
   )
 }
 
-export default CardEvents;
+export default CardEvents;
\ No newline at end of file

src/components/base/card-news/index.tsx

 import dayjs from "dayjs";
-import Links from "@links/index";
+import { resolveUploadUrl } from "@links/index";
 import { NewsItem } from "@/api/types/news";
 
 const stripImagesAndHtml = (html?: string) => {
@@ -21,8 +21,7 @@ const stripImagesAndHtml = (html?: string) => {
 
 const resolveThumbnail = (thumbnail?: string) => {
   if (!thumbnail) return "/img-error.png";
-  if (thumbnail.startsWith("http://") || thumbnail.startsWith("https://")) return thumbnail;
-  return `${Links.imageEndpoint}${thumbnail.replace(/^\/+/, "")}`;
+  return resolveUploadUrl(thumbnail);
 };
 
 const CardNews = ({ news, link }: { news: NewsItem; link: string }) => {

src/lib/api/cms-admin.ts

 "use client";
 
 import { useCustomClient } from "@/api/mutator/custom-client";
+import { resolveUploadUrl } from "@/links";
 import { categoryFallbackRows } from "@/mockdata/categories";
 
 export type CmsHeaderCategoryType = "category" | "page" | "news";
@@ -350,7 +351,7 @@ const transformPost = (
           id: post.thumbnail.id,
           name: post.thumbnail.original ?? post.thumbnail.path ?? "thumbnail",
           alt: post.thumbnail.original ?? post.thumbnail.path ?? "thumbnail",
-          url: post.thumbnail.path ?? "",
+          url: resolveUploadUrl(post.thumbnail.path),
         }
       : null,
     is_hidden: Boolean(post.is_hidden),

src/lib/api/files.ts

 "use client";
 
 import { useCustomClient } from "@/api/mutator/custom-client";
-import Links from "@/links";
+import { resolveUploadUrl } from "@/links";
 import type { AdminMediaItem } from "@/mockdata/admin-news";
 
 export type CmsFileItem = {
@@ -44,9 +44,7 @@ export const resolveCmsFileUrl = (path?: string | null) => {
   const value = path?.trim();
 
   if (!value) return "/img-error.png";
-  if (value.startsWith("http://") || value.startsWith("https://")) return value;
-
-  return `${Links.imageEndpoint}${value.replace(/^\/+/, "")}`;
+  return resolveUploadUrl(value);
 };
 
 export const toAdminMediaItem = (item: CmsFileItem): AdminMediaItem => ({

src/lib/auth/admin-auth.ts

@@ -5,8 +5,9 @@ import useAuthStore, {
   type AuthenticatedAdminSession,
   type AuthenticatedAdminUser,
 } from "@/store/useAuthStore";
+import links from "@/links";
 
-const AUTH_BASE_URL = `${process.env.NEXT_PUBLIC_BACKEND_HOST}/api/v1.0/auth`;
+const AUTH_BASE_URL = `${links.apiEndpoint}/auth`;
 const SESSION_EXPIRED_MESSAGE = "Phiên đăng nhập đã hết hạn. Vui lòng đăng nhập lại.";
 
 interface AuthEnvelope<T> {

src/links/index.d.ts

@@ -2,6 +2,7 @@ declare const links: {
   analyticsGoogle: string
   apiEndpoint: string
   imageEndpoint: string
+  resolveUploadUrl: (value?: string | null) => string
   backendHost: string
   backendProtocol: string
   backendPathname: string

src/links/index.ts

+const DEFAULT_BACKEND_ORIGIN = "https://vietprodev.duckdns.org/gateway/vcci-news-backend";
+
 const normalizeOrigin = (value?: string | null) => value?.trim().replace(/\/+$/, "") || "";
 
 const readOrigin = (key: "NEXT_PUBLIC_BACKEND_HOST" | "NEXT_PUBLIC_FRONTEND_HOST") => {
   const envOrigin = normalizeOrigin(process.env[key]);
   if (envOrigin) return envOrigin;
+  if (key === "NEXT_PUBLIC_BACKEND_HOST" && process.env.NODE_ENV === "production") {
+    return DEFAULT_BACKEND_ORIGIN;
+  }
 
   if (typeof window !== "undefined" && key === "NEXT_PUBLIC_FRONTEND_HOST") {
     return normalizeOrigin(window.location.origin);
@@ -33,11 +38,27 @@ const frontendOrigin = readOrigin("NEXT_PUBLIC_FRONTEND_HOST");
 
 const backendUrl = toUrl(backendOrigin);
 const frontendUrl = toUrl(frontendOrigin);
+const uploadsEndpoint = backendOrigin ? `${backendOrigin}/uploads/` : "/uploads/";
+
+export const resolveUploadUrl = (value?: string | null) => {
+  const trimmed = value?.trim();
+
+  if (!trimmed) return "";
+  if (trimmed.startsWith("http://") || trimmed.startsWith("https://")) return trimmed;
+
+  const cleanPath = trimmed.replace(/^\/+/, "").replace(/^api\/uploads\//, "uploads/");
+  if (cleanPath.startsWith("uploads/")) {
+    return backendOrigin ? `${backendOrigin}/${cleanPath}` : `/${cleanPath}`;
+  }
+
+  return `${uploadsEndpoint}${cleanPath}`;
+};
 
 const links = {
   analyticsGoogle: "G-C9TEK9BS4C",
   apiEndpoint: backendOrigin ? `${backendOrigin}/api/v1.0` : "/api/v1.0",
-  imageEndpoint: backendOrigin ? `${backendOrigin}/uploads/` : "/uploads/",
+  imageEndpoint: uploadsEndpoint,
+  resolveUploadUrl,
   backendHost: backendUrl?.hostname || "",
   backendProtocol: backendUrl?.protocol.replace(":", "") || "",
   backendPathname: backendUrl?.pathname.replace(/\/+$/, "") || "/",