feat(js): add app-http contracts and migrate helpdesk runtime layer

web/js/pages/app-list-utils.js

@@ -1,3 +1,5 @@
+import { postForm as postFormRequest } from '../core/app-http.js';
+
 export const buildUrl = (appBase, path) => new URL(path, appBase).toString();
 
 export const getAppBase = () => {
@@ -125,15 +127,7 @@ export const buildBadgeList = (items, options = {}) => {
 
 export const postAction = async (url, csrf, data = {}) => {
   const body = new URLSearchParams({ ...data, [csrf.key]: csrf.token });
-  return fetch(url, {
-    method: 'POST',
-    headers: {
-      'Content-Type': 'application/x-www-form-urlencoded',
-      'Accept': 'application/json',
-      'X-Requested-With': 'fetch'
-    },
-    body
-  });
+  return postFormRequest(url, body);
 };
 
 export const badgeHtml = (gridjs, value = '') => {

web/js/pages/app-users-list.js

@@ -1,5 +1,6 @@
 import { confirmDialog } from '../core/app-confirm-dialog.js';
 import { warnOnce } from '../core/app-dom.js';
+import { postForm } from '../core/app-http.js';
 
 export function initUsersListPage(options = {}) {
   const {
@@ -29,15 +30,7 @@ export function initUsersListPage(options = {}) {
 
   const postAction = async (url, data = {}) => {
     const body = new URLSearchParams({ ...data, [csrf.key]: csrf.token });
-    return fetch(url, {
-      method: 'POST',
-      headers: {
-        'Content-Type': 'application/x-www-form-urlencoded',
-        'Accept': 'application/json',
-        'X-Requested-With': 'fetch'
-      },
-      body
-    });
+    return postForm(url, body);
   };
 
   const exportButton = document.querySelector(exportSelector);
@@ -118,9 +111,11 @@ export function initUsersListPage(options = {}) {
 
         const executeBulk = async () => {
           const url = resolveBulkUrl(action);
-          const response = await postAction(url, { uuids: ids.join(',') });
-          const data = await response.json().catch(() => null);
-          if (response.ok && data && data.ok) {
+          try {
+            const data = await postAction(url, { uuids: ids.join(',') });
+            if (!data || data.ok !== true) {
+              throw new Error('Bulk action failed');
+            }
             gridConfig.selection?.clear?.();
             gridConfig.grid?.forceRender();
 
@@ -136,7 +131,7 @@ export function initUsersListPage(options = {}) {
                 showFlash('success', text);
               }
             }
-          } else {
+          } catch {
             if (showFlash && labels.bulkMessages) {
               const msg = labels.bulkMessages[action];
               if (msg?.error) {