Add soft-delete (archive) for companies, admin-only

- Added deletedAt column to companies table for soft delete
- System admins see a trash icon on each company card with confirmation modal
- Archived companies are filtered from sidebar, dashboard, company list, and direct access
- Audit log entry created on archive

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/lib/server/db/schema.ts

@@ -59,6 +59,7 @@ export const companies = pgTable('companies', {
 	description: text('description'),
 	totalBudget: numeric('total_budget', { precision: 15, scale: 2 }).notNull().default('0'),
 	currency: text('currency').notNull().default('THB'),
+	deletedAt: timestamp('deleted_at', { withTimezone: true }),
 	createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
 	updatedAt: timestamp('updated_at', { withTimezone: true }).notNull().defaultNow()
 });

src/routes/(app)/+layout.server.ts

@@ -2,7 +2,7 @@ import { redirect } from '@sveltejs/kit';
 import type { LayoutServerLoad } from './$types';
 import { db } from '$lib/server/db/index.js';
 import { companyMembers, companies } from '$lib/server/db/schema.js';
-import { eq } from 'drizzle-orm';
+import { eq, and, isNull } from 'drizzle-orm';
 
 export const load: LayoutServerLoad = async ({ locals }) => {
 	if (!locals.user) {
@@ -18,7 +18,7 @@ export const load: LayoutServerLoad = async ({ locals }) => {
 		})
 		.from(companyMembers)
 		.innerJoin(companies, eq(companyMembers.companyId, companies.id))
-		.where(eq(companyMembers.userId, locals.user.id));
+		.where(and(eq(companyMembers.userId, locals.user.id), isNull(companies.deletedAt)));
 
 	return {
 		user: locals.user,

src/routes/(app)/companies/+page.server.ts

@@ -2,7 +2,7 @@ import { fail, redirect } from '@sveltejs/kit';
 import type { Actions, PageServerLoad } from './$types';
 import { db } from '$lib/server/db/index.js';
 import { companies, companyMembers } from '$lib/server/db/schema.js';
-import { eq } from 'drizzle-orm';
+import { eq, and, isNull } from 'drizzle-orm';
 import { logCompanyEvent } from '$lib/server/audit.js';
 import { requireAuth } from '$lib/server/authorization.js';
 
@@ -20,7 +20,7 @@ export const load: PageServerLoad = async ({ locals }) => {
 		})
 		.from(companyMembers)
 		.innerJoin(companies, eq(companyMembers.companyId, companies.id))
-		.where(eq(companyMembers.userId, user.id));
+		.where(and(eq(companyMembers.userId, user.id), isNull(companies.deletedAt)));
 
 	return { companies: userCompanies, isSystemAdmin: user.isSystemAdmin };
 };
@@ -46,7 +46,6 @@ export const actions: Actions = {
 			.values({ name, description, currency, totalBudget })
 			.returning();
 
-		// Add creator as admin of the company
 		await db.insert(companyMembers).values({
 			userId: user.id,
 			companyId: company.id,
@@ -61,5 +60,33 @@ export const actions: Actions = {
 		}
 
 		redirect(302, `/companies/${company.id}`);
+	},
+
+	delete: async ({ request, locals }) => {
+		const user = requireAuth(locals);
+		if (!user.isSystemAdmin) {
+			return fail(403, { error: 'Only system admins can delete companies' });
+		}
+
+		const formData = await request.formData();
+		const companyId = formData.get('companyId')?.toString();
+		if (!companyId) return fail(400, { error: 'Company ID required' });
+
+		const [company] = await db
+			.select({ name: companies.name })
+			.from(companies)
+			.where(and(eq(companies.id, companyId), isNull(companies.deletedAt)))
+			.limit(1);
+
+		if (!company) return fail(404, { error: 'Company not found' });
+
+		await db
+			.update(companies)
+			.set({ deletedAt: new Date(), updatedAt: new Date() })
+			.where(eq(companies.id, companyId));
+
+		await logCompanyEvent(companyId, user.id, 'company_updated', `Company "${company.name}" archived (soft-deleted)`);
+
+		return { success: true, deleted: company.name };
 	}
 };

src/routes/(app)/companies/+page.svelte

@@ -5,6 +5,8 @@
 
 	let { data, form } = $props();
 	let showCreateModal = $state(false);
+	let confirmDeleteId = $state<string | null>(null);
+	let confirmDeleteName = $state('');
 </script>
 
 <svelte:head>
@@ -27,6 +29,9 @@
 	{#if form?.error}
 		<div class="mb-4 rounded-md bg-red-50 p-3 text-sm text-red-700">{form.error}</div>
 	{/if}
+	{#if form?.deleted}
+		<div class="mb-4 rounded-md bg-green-50 p-3 text-sm text-green-700">Company "{form.deleted}" has been archived.</div>
+	{/if}
 
 	{#if data.companies.length === 0}
 		<div class="rounded-lg border border-gray-200 bg-white p-12 text-center">
@@ -41,10 +46,8 @@
 	{:else}
 		<div class="grid gap-4 sm:grid-cols-2 lg:grid-cols-3">
 			{#each data.companies as company}
-				<a
+				<div class="relative rounded-lg border border-gray-200 bg-white p-5 hover:shadow-md transition-shadow">
-					href="/companies/{company.id}"
+					<a href="/companies/{company.id}" class="block">
-					class="rounded-lg border border-gray-200 bg-white p-5 hover:shadow-md transition-shadow"
-				>
 						<h2 class="text-lg font-semibold text-gray-900">{company.name}</h2>
 						{#if company.description}
 							<p class="mt-1 text-sm text-gray-500 line-clamp-2">{company.description}</p>
@@ -56,6 +59,18 @@
 							</span>
 						</div>
 					</a>
+					{#if data.isSystemAdmin}
+						<button
+							onclick={(e) => { e.stopPropagation(); confirmDeleteId = company.id; confirmDeleteName = company.name; }}
+							class="absolute top-3 right-3 rounded p-1 text-gray-300 hover:bg-red-50 hover:text-red-500"
+							title="Archive company"
+						>
+							<svg class="h-4 w-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+								<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16" />
+							</svg>
+						</button>
+					{/if}
+				</div>
 			{/each}
 		</div>
 	{/if}
@@ -136,3 +151,38 @@
 		</div>
 	</div>
 {/if}
+
+<!-- Delete confirmation modal -->
+{#if confirmDeleteId}
+	<div class="fixed inset-0 z-50 flex items-center justify-center bg-black/50">
+		<div class="w-full max-w-sm rounded-lg bg-white p-6 shadow-xl">
+			<h2 class="text-lg font-semibold text-gray-900">Archive Company</h2>
+			<p class="mt-2 text-sm text-gray-500">
+				Are you sure you want to archive <strong>{confirmDeleteName}</strong>? The company and all its data will be hidden but not permanently deleted.
+			</p>
+			<div class="mt-4 flex justify-end gap-2">
+				<button
+					type="button"
+					onclick={() => (confirmDeleteId = null)}
+					class="rounded-md px-4 py-2 text-sm text-gray-700 hover:bg-gray-100"
+				>
+					Cancel
+				</button>
+				<form method="POST" action="?/delete" use:enhance={() => {
+					return async ({ update }) => {
+						confirmDeleteId = null;
+						await update();
+					};
+				}}>
+					<input type="hidden" name="companyId" value={confirmDeleteId} />
+					<button
+						type="submit"
+						class="rounded-md bg-red-600 px-4 py-2 text-sm font-medium text-white hover:bg-red-700"
+					>
+						Archive
+					</button>
+				</form>
+			</div>
+		</div>
+	</div>
+{/if}

src/routes/(app)/companies/[companyId]/+layout.server.ts

@@ -2,7 +2,7 @@ import { error } from '@sveltejs/kit';
 import type { LayoutServerLoad } from './$types';
 import { db } from '$lib/server/db/index.js';
 import { companies } from '$lib/server/db/schema.js';
-import { eq } from 'drizzle-orm';
+import { eq, and, isNull } from 'drizzle-orm';
 import { requireAuth, getCompanyRole } from '$lib/server/authorization.js';
 
 export const load: LayoutServerLoad = async ({ locals, params }) => {
@@ -11,7 +11,7 @@ export const load: LayoutServerLoad = async ({ locals, params }) => {
 	const [company] = await db
 		.select()
 		.from(companies)
-		.where(eq(companies.id, params.companyId))
+		.where(and(eq(companies.id, params.companyId), isNull(companies.deletedAt)))
 		.limit(1);
 
 	if (!company) {

src/routes/(app)/dashboard/+page.server.ts

@@ -6,7 +6,7 @@ import {
 	projects,
 	expenses
 } from '$lib/server/db/schema.js';
-import { eq, and, sql } from 'drizzle-orm';
+import { eq, and, sql, isNull } from 'drizzle-orm';
 
 export const load: PageServerLoad = async ({ locals }) => {
 	const userId = locals.user!.id;
@@ -22,7 +22,7 @@ export const load: PageServerLoad = async ({ locals }) => {
 		})
 		.from(companyMembers)
 		.innerJoin(companies, eq(companyMembers.companyId, companies.id))
-		.where(eq(companyMembers.userId, userId));
+		.where(and(eq(companyMembers.userId, userId), isNull(companies.deletedAt)));
 
 	// For each company, get project count and pending expense count
 	const companySummaries = await Promise.all(