fix: delete button - add error handling and fix variable shadowing in filter callback

app/routes/analyze.tsx

@@ -359,13 +359,18 @@ export default function Analyze() {
         const formData = new FormData();
         formData.append("_method", "DELETE");
         formData.append("ticker", stock.ticker);
-        await fetch("/api/stocks", { method: "POST", body: formData });
+        const res = await fetch("/api/stocks", { method: "POST", body: formData });
+        if (!res.ok) {
+          console.error("[analyze] Delete API failed:", res.status);
+          return;
+        }
       } catch (err) {
         console.error("[analyze] Error deleting stock:", err);
+        return;
       }
     }
 
-    setStocks((s) => s.filter((stock) => stock.id !== id));
+    setStocks((s) => s.filter((st) => st.id !== id));
   };
 
   const runAnalysis = async (id: string, ticker: string) => {