- Added image upload functionality for agents in the backend and frontend.

- Implemented image URL generation based on storage strategy (S3 or local).
- Updated agent creation and update endpoints to handle image files.
- Enhanced frontend components to display agent images with fallbacks.
- New API endpoint to serve images from storage.
- Refactored API client to support FormData for file uploads.
- Improved error handling and logging for image processing.

frontend/src/api/client.ts

@@ -1,16 +1,21 @@
 export const baseURL =
   import.meta.env.VITE_API_HOST || 'https://docsapi.arc53.com';
 
-const defaultHeaders = {
-  'Content-Type': 'application/json',
-};
-
-const getHeaders = (token: string | null, customHeaders = {}): HeadersInit => {
-  return {
-    ...defaultHeaders,
+const getHeaders = (
+  token: string | null,
+  customHeaders = {},
+  isFormData = false,
+): HeadersInit => {
+  const headers: HeadersInit = {
     ...(token ? { Authorization: `Bearer ${token}` } : {}),
     ...customHeaders,
   };
+
+  if (!isFormData) {
+    headers['Content-Type'] = 'application/json';
+  }
+
+  return headers;
 };
 
 const apiClient = {
@@ -44,6 +49,21 @@ const apiClient = {
       return response;
     }),
 
+  postFormData: (
+    url: string,
+    formData: FormData,
+    token: string | null,
+    headers = {},
+    signal?: AbortSignal,
+  ): Promise<Response> => {
+    return fetch(`${baseURL}${url}`, {
+      method: 'POST',
+      headers: getHeaders(token, headers, true),
+      body: formData,
+      signal,
+    });
+  },
+
   put: (
     url: string,
     data: any,
@@ -60,6 +80,21 @@ const apiClient = {
       return response;
     }),
 
+  putFormData: (
+    url: string,
+    formData: FormData,
+    token: string | null,
+    headers = {},
+    signal?: AbortSignal,
+  ): Promise<Response> => {
+    return fetch(`${baseURL}${url}`, {
+      method: 'PUT',
+      headers: getHeaders(token, headers, true),
+      body: formData,
+      signal,
+    });
+  },
+
   delete: (
     url: string,
     token: string | null,