proclamation-categories: sub-category management inline in parent form

- Registry: Remove 'parent.name' from listFields (all shown records
  are top-level with no parent), remove 'parent: true' from include
  since unused
- +page.server.ts: Custom load filters to parentId=null (top-level
  only); custom upsert syncs children (create/update/delete) and
  handles P2002 duplicate-name errors; custom delete cascades to
  children first to avoid FK constraint violations
- CategoryForm.svelte: Replace parentId select dropdown with dynamic
  list of sub-category inputs. Each row has a name field and Remove
  button. Pre-populates from record.children when editing existing
  categories. Add Sub-category button appends new rows
- +page.svelte: Remove unused relationOptionsData prop from
  CategoryForm; rename submit button label from 'Update' to 'Save'
- prisma: Add ProclamationCategorySubscriptionLevel join table
  migration and regenerate client
- General: Update TipTap mock, Toast, license-keys page, proclamations
  server/route tests, README, AGENTS.md, and other admin forms

src/routes/(protected)/admin/license-keys/+page.svelte

@@ -47,7 +47,12 @@
 	</div>
 
 	{#if showCreateForm}
-		<form method="POST" action="?/createKey" use:enhance class="mb-6 border border-gray-200 p-4 dark:border-gray-700">
+		<form
+			method="POST"
+			action="?/createKey"
+			use:enhance
+			class="mb-6 border border-gray-200 p-4 dark:border-gray-700"
+		>
 			<h2 class="mb-3 text-sm font-semibold text-gray-700 dark:text-gray-300">
 				Create New License Key
 			</h2>
@@ -58,7 +63,10 @@
 			{/if}
 			<div class="flex flex-col gap-3">
 				<div>
-					<label for="email" class="mb-1 block text-sm font-medium text-gray-700 dark:text-gray-300">
+					<label
+						for="email"
+						class="mb-1 block text-sm font-medium text-gray-700 dark:text-gray-300"
+					>
 						User Email
 					</label>
 					<input