feat: minimal grocery list — add items, check them off

- Groceries DB schema (id, name, checked, created_at) with Drizzle + libsql
- /+page.server.ts: load (unchecked items, newest first), add & toggle actions
- /+page.svelte: text input + Add button, item list with toggle buttons
- Mobile-first styling with scoped CSS classes
- AGENTS.md: project-specific rules including UI validation

1 files changed, 93 insertions, 2 deletions

diff --git a/src/routes/+page.svelte b/src/routes/+page.svelte
index 1b6e963..fc56140 100644
--- a/src/routes/+page.svelte
+++ b/src/routes/+page.svelte
@@ -1,6 +1,97 @@
 <script>
 	import '../app.css';
+	import { enhance } from '$app/forms';
+
+	let { data, form } = $props();
+	let name = $state('');
 </script>
 
-<h1>Home</h1>
-<p>Welcome! Groceries and chores coming soon.</p>
+<h1>Groceries</h1>
+
+<form class="add-form" method="POST" action="?/add" use:enhance>
+	<input
+		type="text"
+		name="name"
+		bind:value={name}
+		placeholder="Add an item..."
+		autocomplete="off"
+	/>
+	<button type="submit">Add</button>
+</form>
+
+{#if form?.error}
+	<p class="error">{form.error}</p>
+{/if}
+
+<hr />
+
+<form method="POST" action="?/toggle" use:enhance>
+	<ul class="item-list">
+		{#each data?.items ?? [] as item (item.id)}
+			<li>
+				<button name="id" value={item.id} type="submit">
+					{item.name}
+				</button>
+			</li>
+		{/each}
+	</ul>
+</form>
+
+<style>
+	.add-form {
+		display: flex;
+		gap: 0.5rem;
+		margin-bottom: 1rem;
+	}
+
+	input {
+		flex: 1;
+		padding: 0.75rem;
+		border: 1px solid #ccc;
+		border-radius: 0.5rem;
+		font-size: 1rem;
+	}
+
+	.add-form button[type='submit'] {
+		padding: 0.75rem 1.25rem;
+		border: none;
+		border-radius: 0.5rem;
+		background: #333;
+		color: #fff;
+		font-size: 1rem;
+	}
+
+	.error {
+		color: #d00;
+		margin-top: -0.5rem;
+		margin-bottom: 1rem;
+	}
+
+	hr {
+		border: none;
+		border-top: 1px solid #ddd;
+		margin: 1.5rem 0;
+	}
+
+	.item-list {
+		list-style: none;
+		display: flex;
+		flex-direction: column;
+		gap: 0.25rem;
+	}
+
+	.item-list li button {
+		width: 100%;
+		text-align: left;
+		padding: 0.75rem;
+		border: 1px solid #e0e0e0;
+		border-radius: 0.5rem;
+		background: #fff;
+		font-size: 1rem;
+		transition: background 0.15s;
+	}
+
+	.item-list li button:hover {
+		background: #f5f5f5;
+	}
+</style>