added single day history button

src/lib/components/DevButtons.svelte

@@ -6,14 +6,14 @@
 
 	let seeding = $state(false);
 
-	async function seedHistory() {
+	async function seedHistory(days: number = 10) {
 		if (!browser || !anonymousId || seeding) return;
 		seeding = true;
 		try {
 			const response = await fetch("/api/dev/seed-history", {
 				method: "POST",
 				headers: { "Content-Type": "application/json" },
-				body: JSON.stringify({ anonymousId })
+				body: JSON.stringify({ anonymousId, days })
 			});
 			const result = await response.json();
 			alert(
@@ -113,7 +113,15 @@
 
 	<Button
 		variant="secondary"
-		onclick={seedHistory}
+		onclick={() => seedHistory(1)}
+		disabled={seeding}
+		class="w-full py-4 md:py-2"
+	>
+		{seeding ? "Seeding..." : "Add 1 Day of History"}
+	</Button>
+	<Button
+		variant="secondary"
+		onclick={() => seedHistory(10)}
 		disabled={seeding}
 		class="w-full py-4 md:py-2"
 	>