feat: implement user management features including creation, updating, and deletion of users

- Added user management routes and logic in `+page.server.ts` for creating, updating, resetting passwords, and deleting users.
- Created a user management interface in `+page.svelte` with dialogs for user actions.
- Integrated password validation and hashing using `@node-rs/argon2`.
- Updated database schema to include a `user` table with necessary fields.
- Seeded a default admin user during database migration if no users exist.
- Added necessary dependencies in `package.json`.

server/dashboard/src/lib/components/ui/empty/empty-media.svelte

@@ -0,0 +1,41 @@
+<script lang="ts" module>
+	import { tv, type VariantProps } from "tailwind-variants";
+
+	export const emptyMediaVariants = tv({
+		base: "mb-2 flex shrink-0 items-center justify-center [&_svg]:pointer-events-none [&_svg]:shrink-0",
+		variants: {
+			variant: {
+				default: "bg-transparent",
+				icon: "bg-muted text-foreground flex size-10 shrink-0 items-center justify-center rounded-lg [&_svg:not([class*='size-'])]:size-6",
+			},
+		},
+		defaultVariants: {
+			variant: "default",
+		},
+	});
+
+	export type EmptyMediaVariant = VariantProps<typeof emptyMediaVariants>["variant"];
+</script>
+
+<script lang="ts">
+	import { cn, type WithElementRef } from "$lib/utils.js";
+	import type { HTMLAttributes } from "svelte/elements";
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		children,
+		variant = "default",
+		...restProps
+	}: WithElementRef<HTMLAttributes<HTMLDivElement>> & { variant?: EmptyMediaVariant } = $props();
+</script>
+
+<div
+	bind:this={ref}
+	data-slot="empty-icon"
+	data-variant={variant}
+	class={cn(emptyMediaVariants({ variant }), className)}
+	{...restProps}
+>
+	{@render children?.()}
+</div>