feat: add temporal context and contextual help

webui/src/api/client.ts

@@ -1,4 +1,5 @@
 import type { ApiSettings } from "../types";
+import { temporalRequestHeaders } from "../platform/temporal";
 
 const STORAGE_KEY = "govoplan.apiSettings";
 const LEGACY_STORAGE_KEYS: string[] = [];
@@ -341,6 +342,9 @@ export async function apiFetch<T>(settings: ApiSettings, path: string, init?: Re
   for (const [key, value] of authHeaders(settings)) {
     headers.set(key, value);
   }
+  for (const [key, value] of Object.entries(temporalRequestHeaders())) {
+    if (!headers.has(key)) headers.set(key, value);
+  }
 
   const csrf = csrfToken();
   if (csrf && isUnsafeMethod(method) && !headers.has("X-CSRF-Token")) {
@@ -433,7 +437,11 @@ export async function apiFetch<T>(settings: ApiSettings, path: string, init?: Re
 
 
 export async function apiDownload(settings: ApiSettings, path: string, filename: string): Promise<void> {
-  const response = await fetch(apiUrl(settings, path), { headers: authHeaders(settings), credentials: "include" });
+  const headers = authHeaders(settings);
+  for (const [key, value] of Object.entries(temporalRequestHeaders())) {
+    headers.set(key, value);
+  }
+  const response = await fetch(apiUrl(settings, path), { headers, credentials: "include" });
   if (!response.ok) {
     const text = await response.text();
     if (response.status === 401 && shouldNotifyAuthRequired(path)) {