feat: update video jobs API calls to use backend URL and authorization headers

Co-authored-by: Copilot <copilot@github.com>

frontend/app/templates/admin/videos.html

@@ -78,7 +78,14 @@ block content %}
 
     async function fetchJobs() {
       try {
-        const response = await fetch("/api/v1/admin/videos");
+        const response = await fetch(
+          "{{ config['BACKEND_URL'] }}/admin/videos",
+          {
+            headers: {
+              Authorization: "Bearer {{ session['access_token'] }}",
+            },
+          },
+        );
         if (!response.ok) throw new Error("Failed to fetch jobs");
         const jobs = await response.json();
         jobsTableBody.innerHTML = "";
@@ -123,9 +130,15 @@ block content %}
       purgeStatus.classList.remove("text-red-500", "text-green-500");
 
       try {
-        const response = await fetch("/api/v1/admin/videos/purge", {
-          method: "POST",
-        });
+        const response = await fetch(
+          "{{ config['BACKEND_URL'] }}/admin/videos/purge",
+          {
+            method: "POST",
+            headers: {
+              Authorization: "Bearer {{ session['access_token'] }}",
+            },
+          },
+        );
         const data = await response.json();
         if (!response.ok)
           throw new Error(data.detail || "Failed to purge jobs");
@@ -145,9 +158,15 @@ block content %}
       if (e.target.classList.contains("cancel-btn")) {
         const jobId = e.target.dataset.jobId;
         try {
-          const response = await fetch(`/api/v1/admin/videos/${jobId}/cancel`, {
-            method: "POST",
-          });
+          const response = await fetch(
+            `{{ config['BACKEND_URL'] }}/admin/videos/${jobId}/cancel`,
+            {
+              method: "POST",
+              headers: {
+                Authorization: "Bearer {{ session['access_token'] }}",
+              },
+            },
+          );
           if (!response.ok) throw new Error("Failed to cancel job");
           fetchJobs();
         } catch (error) {