fix: address issues in model pull and chat API

- Refactored model pull logic to improve error handling and user feedback.
- Enhanced chat API to ensure better performance and reliability during message fetching.
- Updated UI components for a more intuitive user experience when interacting with models and messages.

components/setup/hardware-scan.tsx

@@ -0,0 +1,72 @@
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Progress } from "@/components/ui/progress";
+import { Cpu, HardDrive, Laptop } from "lucide-react";
+import { SystemSpecs } from "@/lib/recommendation";
+import { useEffect, useState } from "react";
+
+interface HardwareScanProps {
+  specs: SystemSpecs | null;
+  loading: boolean;
+}
+
+export function HardwareScan({ specs, loading }: HardwareScanProps) {
+  const [progress, setProgress] = useState(0);
+
+  useEffect(() => {
+    if (loading) {
+      const interval = setInterval(() => {
+        setProgress((prev) => (prev >= 90 ? 90 : prev + 10));
+      }, 150);
+      return () => clearInterval(interval);
+    } else {
+      setProgress(100);
+    }
+  }, [loading]);
+
+  if (loading) {
+    return (
+      <Card className="w-full max-w-md mx-auto border-primary/20">
+        <CardHeader>
+          <CardTitle className="flex items-center gap-2">
+            <Cpu className="animate-pulse text-primary" />
+            Analisando Hardware...
+          </CardTitle>
+        </CardHeader>
+        <CardContent className="space-y-4">
+          <Progress value={progress} className="h-2" />
+          <p className="text-sm text-muted-foreground text-center">
+            Verificando memória e processador para recomendação ideal.
+          </p>
+        </CardContent>
+      </Card>
+    );
+  }
+
+  if (!specs) return null;
+
+  const ramGB = (specs.total_memory / (1024 * 1024 * 1024)).toFixed(1);
+
+  return (
+    <Card className="w-full max-w-md mx-auto bg-muted/30 animate-in fade-in slide-in-from-bottom-4">
+      <CardHeader>
+        <CardTitle className="flex items-center gap-2 text-lg">
+          <Laptop className="text-primary" />
+          Sistema Detectado
+        </CardTitle>
+      </CardHeader>
+      <CardContent className="grid grid-cols-2 gap-4">
+        <div className="flex flex-col items-center p-3 bg-background rounded-lg border">
+          <HardDrive className="w-6 h-6 mb-2 text-muted-foreground" />
+          <span className="text-xl font-bold">{ramGB} GB</span>
+          <span className="text-xs text-muted-foreground">RAM Total</span>
+        </div>
+        <div className="flex flex-col items-center p-3 bg-background rounded-lg border">
+          <Cpu className="w-6 h-6 mb-2 text-muted-foreground" />
+          <span className="text-xl font-bold">{specs.cpu_count}</span>
+          <span className="text-xs text-muted-foreground">Núcleos CPU</span>
+        </div>
+      </CardContent>
+    </Card>
+  );
+}
+