fix: relative/absolute url patch for vector count

connect #516

frontend/src/models/system.js

-import { API_BASE, AUTH_TIMESTAMP } from "@/utils/constants";
+import { API_BASE, AUTH_TIMESTAMP, fullApiUrl } from "@/utils/constants";
 import { baseHeaders } from "@/utils/request";
 import DataConnector from "./dataConnector";
 
@@ -10,7 +10,7 @@ const System = {
       .catch(() => false);
   },
   totalIndexes: async function (slug = null) {
-    const url = new URL(`${API_BASE}/system/system-vectors`);
+    const url = new URL(`${fullApiUrl()}/system/system-vectors`);
     if (!!slug) url.searchParams.append("slug", encodeURIComponent(slug));
     return await fetch(url.toString(), {
       headers: baseHeaders(),

frontend/src/utils/constants.js

@@ -7,3 +7,8 @@ export const COMPLETE_QUESTIONNAIRE = "anythingllm_completed_questionnaire";
 
 export const USER_BACKGROUND_COLOR = "bg-historical-msg-user";
 export const AI_BACKGROUND_COLOR = "bg-historical-msg-system";
+
+export function fullApiUrl() {
+  if (API_BASE !== "/api") return API_BASE;
+  return `${window.location.origin}/api`;
+}