feat: scope organization access by memberships

src/routes/dashboard/organization/admins/create-admin-dialog.svelte

@@ -32,7 +32,9 @@
 	<Dialog.Content class="sm:max-w-md">
 		<Dialog.Header>
 			<Dialog.Title>Create user</Dialog.Title>
-			<Dialog.Description>Add a manually managed Better Auth user.</Dialog.Description>
+			<Dialog.Description>
+				Create a user or add an existing email to this organization.
+			</Dialog.Description>
 		</Dialog.Header>
 		<form method="POST" action="?/create" class="grid gap-2" use:enhanceCreate>
 			<FormField form={createForm} name="name">
@@ -66,6 +68,7 @@
 								{...props}
 								type="password"
 								autocomplete="new-password"
+								placeholder="Required for new users"
 								bind:value={$createData.password}
 							/>
 						{/snippet}