Add admin dashboard and middleware protection

Introduces an admin dashboard page with cards for inviting vendors, banning users, and viewing recent orders. Adds middleware logic to restrict /admin routes to the 'admin1' user and updates route matching. Also updates git-info.json with latest commit metadata.

components/admin/BanUserCard.tsx

@@ -0,0 +1,61 @@
+"use client";
+import { useState } from "react";
+import { fetchClient } from "@/lib/api-client";
+
+export default function BanUserCard() {
+  const [telegramUserId, setTelegramUserId] = useState("");
+  const [reason, setReason] = useState("");
+  const [loading, setLoading] = useState(false);
+  const [message, setMessage] = useState<string | null>(null);
+
+  async function handleBan(e: React.FormEvent) {
+    e.preventDefault();
+    setLoading(true);
+    setMessage(null);
+    try {
+      await fetchClient("/admin/ban", {
+        method: "POST",
+        body: { telegramUserId, reason }
+      });
+      setMessage("User banned");
+      setTelegramUserId("");
+      setReason("");
+    } catch (e: any) {
+      setMessage(e?.message || "Failed to ban user");
+    } finally {
+      setLoading(false);
+    }
+  }
+
+  return (
+    <div className="rounded-lg border border-border/60 bg-background p-4">
+      <h2 className="font-medium">Ban User</h2>
+      <p className="text-sm text-muted-foreground mt-1">Block abusive users by Telegram ID</p>
+      <form onSubmit={handleBan} className="mt-4 space-y-3">
+        <input
+          className="w-full rounded-md border border-border bg-background px-3 py-2 text-sm"
+          placeholder="Telegram user ID"
+          value={telegramUserId}
+          onChange={(e) => setTelegramUserId(e.target.value)}
+          required
+        />
+        <input
+          className="w-full rounded-md border border-border bg-background px-3 py-2 text-sm"
+          placeholder="Reason (optional)"
+          value={reason}
+          onChange={(e) => setReason(e.target.value)}
+        />
+        <button
+          type="submit"
+          className="inline-flex items-center rounded-md bg-destructive px-3 py-2 text-sm text-destructive-foreground disabled:opacity-60"
+          disabled={loading}
+        >
+          {loading ? "Banning..." : "Ban User"}
+        </button>
+        {message && <p className="text-xs text-muted-foreground">{message}</p>}
+      </form>
+    </div>
+  );
+}
+
+