profiles: add address management, user edit, fix form redirect

- Add type (Mailing/Billing/Shipping) and isDefault fields to Address
  schema with migration. Unique default enforced server-side.
- Rewrite profiles page with inline address creation form and
  editable user name/email within the profile modal.
- Add upsertAddress and updateUser form actions.
- Fix form redirect by adding use:enhance to AdminForm.
- Disable Update button in AdminForm until a field is changed
  (prevents accidental submissions).

src/lib/components/admin/AdminTable.svelte

@@ -0,0 +1,142 @@
+<script lang="ts">
+	import type { PrismaScalarType } from '$lib/svelte-admin/types';
+	import { fieldNameToLabel, resolveFieldValue } from '$lib/svelte-admin/introspect';
+
+	let {
+		records = [],
+		listFields = [],
+		searchFields = [],
+		fieldTypes = {} as Record<string, PrismaScalarType>,
+		singular = 'record',
+		onRowClick,
+		onNew
+	}: {
+		records: Record<string, unknown>[];
+		listFields: string[];
+		searchFields?: string[];
+		fieldTypes?: Record<string, PrismaScalarType>;
+		singular?: string;
+		onRowClick?: (record: Record<string, unknown>) => void;
+		onNew?: () => void;
+	} = $props();
+
+	let search = $state('');
+	let sortCol = $state<string | null>(null);
+	let sortAsc = $state(true);
+
+	let filtered = $derived(
+		search
+			? records.filter((r) =>
+					searchFields.some((f) => {
+						const v = resolveFieldValue(r, f);
+						return v != null && String(v).toLowerCase().includes(search.toLowerCase());
+					})
+				)
+			: records
+	);
+
+	let sorted = $derived(
+		sortCol
+			? [...filtered].sort((a, b) => {
+					const va = resolveFieldValue(a, sortCol!);
+					const vb = resolveFieldValue(b, sortCol!);
+					if (va == null) return 1;
+					if (vb == null) return -1;
+					const cmp = String(va).localeCompare(String(vb), undefined, { numeric: true });
+					return sortAsc ? cmp : -cmp;
+				})
+			: filtered
+	);
+
+	function toggleSort(field: string) {
+		if (sortCol === field) {
+			sortAsc = !sortAsc;
+		} else {
+			sortCol = field;
+			sortAsc = true;
+		}
+	}
+
+	function formatCellValue(v: unknown, field: string): string {
+		if (v == null) return '';
+		const ft = fieldTypes[field];
+		if (ft === 'DateTime') {
+			if (v instanceof Date) return v.toLocaleString();
+			return new Date(v as string).toLocaleString();
+		}
+		if (ft === 'Boolean') return v ? 'Active' : 'Inactive';
+		if (ft === 'Float') {
+			const n = Number(v);
+			return Number.isNaN(n) ? String(v) : n.toFixed(2);
+		}
+		return String(v);
+	}
+</script>
+
+<div class="flex flex-col gap-4">
+	<div class="flex items-center justify-between gap-4">
+		{#if searchFields.length > 0}
+			<input
+				type="text"
+				placeholder="Search {singular}s..."
+				bind:value={search}
+				class="max-w-xs border border-gray-300 px-3 py-1.5 text-sm dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100"
+			/>
+		{:else}
+			<div></div>
+		{/if}
+		{#if onNew}
+			<button
+				type="button"
+				onclick={onNew}
+				class="border border-gray-300 px-3 py-1.5 text-sm font-medium dark:border-gray-600 dark:text-gray-300 dark:hover:bg-gray-800"
+			>
+				New {singular} +
+			</button>
+		{/if}
+	</div>
+
+	<div class="overflow-x-auto border border-gray-200 dark:border-gray-700">
+		<table class="w-full">
+			<thead>
+				<tr class="border-b border-gray-200 bg-gray-50 dark:border-gray-700 dark:bg-gray-800">
+					{#each listFields as field (field)}
+						<th
+							scope="col"
+							onclick={() => toggleSort(field)}
+							class="cursor-pointer px-4 py-2 text-left text-xs font-medium tracking-wider text-gray-500 uppercase hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200"
+						>
+							{fieldNameToLabel(field)}
+							{#if sortCol === field}
+								<span class="ml-1">{sortAsc ? '\u25B2' : '\u25BC'}</span>
+							{/if}
+						</th>
+					{/each}
+				</tr>
+			</thead>
+			<tbody>
+				{#each sorted as record, i ((record['id'] as string) ?? (record['key'] as string) ?? i)}
+					<tr
+						onclick={() => onRowClick?.(record)}
+						class="cursor-pointer border-b border-gray-200 hover:bg-gray-100 dark:border-gray-700 dark:text-gray-100 dark:hover:bg-gray-800"
+					>
+						{#each listFields as field (field)}
+							<td class="px-4 py-2 text-sm">
+								{formatCellValue(resolveFieldValue(record, field), field)}
+							</td>
+						{/each}
+					</tr>
+				{:else}
+					<tr>
+						<td
+							colspan={listFields.length}
+							class="px-4 py-8 text-center text-sm text-gray-500 dark:text-gray-400"
+						>
+							No {singular}s found.
+						</td>
+					</tr>
+				{/each}
+			</tbody>
+		</table>
+	</div>
+</div>