feat: rebrand to Domain Scanner platform

Replace GeoExport static site with Next.js domain intelligence app:
real DNS/WHOIS/SSL/HTTP/geo scans, SSE progress, Docker stack,
updated install/uninstall scripts, and full documentation.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/app/domain/[domain]/page.tsx

@@ -0,0 +1,85 @@
+import { prisma } from "@/lib/prisma";
+import { notFound } from "next/navigation";
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Badge } from "@/components/ui/badge";
+import type { ScanResult } from "@/lib/types";
+
+export async function generateMetadata({ params }: { params: Promise<{ domain: string }> }) {
+  const { domain } = await params;
+  return { title: domain };
+}
+
+export default async function DomainDetailPage({
+  params,
+}: {
+  params: Promise<{ domain: string }>;
+}) {
+  const { domain: raw } = await params;
+  const domain = decodeURIComponent(raw);
+
+  const scan = await prisma.scan.findFirst({
+    where: { domain, status: "COMPLETED" },
+    orderBy: { createdAt: "desc" },
+  });
+
+  if (!scan?.result) {
+    notFound();
+  }
+
+  const result = scan.result as unknown as ScanResult;
+
+  return (
+    <div className="mx-auto max-w-6xl px-4 pb-24 pt-24">
+      <h1 className="text-4xl font-bold">{result.domain}</h1>
+      <p className="mt-2 text-zinc-400">Full analysis report</p>
+
+      <div className="mt-8 grid gap-6 lg:grid-cols-2">
+        <Card>
+          <CardHeader>
+            <CardTitle>WHOIS</CardTitle>
+          </CardHeader>
+          <CardContent className="max-h-96 overflow-auto font-mono text-xs text-zinc-300">
+            {Object.entries(result.whois).slice(0, 30).map(([k, v]) => (
+              <div key={k} className="border-b border-white/5 py-1">
+                <span className="text-zinc-500">{k}: </span>
+                {v}
+              </div>
+            ))}
+          </CardContent>
+        </Card>
+
+        <Card>
+          <CardHeader>
+            <CardTitle>SSL certificate</CardTitle>
+          </CardHeader>
+          <CardContent className="space-y-2 text-sm">
+            <p>
+              Status:{" "}
+              <Badge variant={result.ssl.valid ? "success" : "danger"}>
+                {result.ssl.valid ? "Valid" : "Invalid"}
+              </Badge>
+            </p>
+            {result.ssl.issuer && <p>Issuer: {result.ssl.issuer}</p>}
+            {result.ssl.validTo && <p>Expires: {result.ssl.validTo}</p>}
+            {result.ssl.daysRemaining !== undefined && (
+              <p>Days remaining: {result.ssl.daysRemaining}</p>
+            )}
+          </CardContent>
+        </Card>
+
+        <Card className="lg:col-span-2">
+          <CardHeader>
+            <CardTitle>HTTP headers</CardTitle>
+          </CardHeader>
+          <CardContent className="max-h-64 overflow-auto font-mono text-xs">
+            {Object.entries(result.http.headers).map(([k, v]) => (
+              <div key={k} className="py-0.5">
+                <span className="text-violet-400">{k}</span>: {v}
+              </div>
+            ))}
+          </CardContent>
+        </Card>
+      </div>
+    </div>
+  );
+}