chore: prepare geo agent mvp for merge

src/app/page.tsx

@@ -82,7 +82,7 @@ export default function Home() {
   const [optimizedArticle, setOptimizedArticle] =
     useState<OptimizedArticle | null>(null);
   const [qaReport, setQaReport] = useState<QaReport | null>(null);
-  const [busyAction, setBusyAction] = useState<string | null>(null);
+  const [busyAction, setBusyAction] = useState<ProgressAction | null>(null);
   const [message, setMessage] = useState<string>("");
   const [apiAccessKey, setApiAccessKey] = useState("");
   const [elapsedSeconds, setElapsedSeconds] = useState(0);
@@ -94,7 +94,6 @@ export default function Home() {
 
   useEffect(() => {
     if (!busyAction) return;
-    setElapsedSeconds(0);
     const startedAt = Date.now();
     const timer = window.setInterval(() => {
       setElapsedSeconds(Math.floor((Date.now() - startedAt) / 1000));
@@ -128,8 +127,13 @@ export default function Home() {
     };
   }, [apiAccessKey, busyAction, jobId]);
 
+  function startBusyAction(action: ProgressAction) {
+    setElapsedSeconds(0);
+    setBusyAction(action);
+  }
+
   async function analyze() {
-    setBusyAction("analyze");
+    startBusyAction("analyze");
     setMessage("");
     setLastTiming(null);
     setLiveProgress(null);
@@ -163,7 +167,7 @@ export default function Home() {
 
   async function confirmFactCard() {
     if (!jobId || !factCard) return;
-    setBusyAction("confirm");
+    startBusyAction("confirm");
     setMessage("");
     setLastTiming(null);
     try {
@@ -185,7 +189,7 @@ export default function Home() {
 
   async function optimize() {
     if (!jobId) return;
-    setBusyAction("optimize");
+    startBusyAction("optimize");
     setMessage("");
     setLastTiming(null);
     setLiveProgress(null);
@@ -243,7 +247,7 @@ export default function Home() {
         </button>
       </header>
       <ProgressPanel
-        action={busyAction as ProgressAction | null}
+        action={busyAction}
         elapsedSeconds={elapsedSeconds}
         lastTiming={lastTiming}
         liveProgress={liveProgress}