feat: unify live dashboard snapshot (#131)

frontend/index.html

@@ -324,8 +324,8 @@ textarea { resize: vertical; min-height: 120px; }
   function setClock() { qs('#clock').textContent = fmt(new Date()); }
   setClock(); setInterval(setClock, 1000);
 
-  async function fetchContextSnapshot() {
-    const res = await fetch('api/v1/context', { headers: { Accept: 'application/json' } });
+  async function fetchLiveSnapshot() {
+    const res = await fetch('api/v1/live', { headers: { Accept: 'application/json' } });
     if (!res.ok) throw new Error('HTTP ' + res.status);
     return res.json();
   }
@@ -552,14 +552,13 @@ textarea { resize: vertical; min-height: 120px; }
     qs('#gitea-events-status').textContent = message;
   }
 
-  async function loadEventStream() {
-    setEventStreamStatus('Updating…');
-    try {
-      const res = await fetch('api/v1/events', { headers: { Accept: 'application/json' } });
-      if (!res.ok) throw new Error('HTTP ' + res.status);
-      paintEventStream(await res.json());
+  function renderLiveSnapshot(snapshot) {
+    if (snapshot.context) renderContextSnapshot(snapshot.context);
+    else handleContextError(new Error('Context section unavailable'));
+    if (snapshot.events) {
+      paintEventStream(snapshot.events);
       setEventStreamStatus('Updated ' + fmt(new Date()));
-    } catch (e) {
+    } else {
       setEventStreamStatus('Update failed · showing last activity');
     }
   }
@@ -664,9 +663,12 @@ textarea { resize: vertical; min-height: 120px; }
   });
 
   const contextPoller = createContextPoller({
-    fetchContext: fetchContextSnapshot,
-    onSnapshot: renderContextSnapshot,
-    onError: handleContextError,
+    fetchContext: fetchLiveSnapshot,
+    onSnapshot: renderLiveSnapshot,
+    onError: error => {
+      handleContextError(error);
+      setEventStreamStatus('Update failed · showing last activity');
+    },
     isHidden: () => document.hidden,
     intervalMs: 8000,
   });
@@ -689,11 +691,8 @@ textarea { resize: vertical; min-height: 120px; }
     });
   });
   contextPoller.start();
-  loadEventStream();
-  setInterval(() => { if (!document.hidden) loadEventStream(); }, 5000);
   document.addEventListener('visibilitychange', () => {
     contextPoller.setVisible(!document.hidden);
-    if (!document.hidden) loadEventStream();
   });
 
   /* Widgets */