Add 17 features: My Work view, card copy/numbering, calendar, bulk ops, custom fields, automations, webhooks, invites, import/export, and more

Features implemented across 6 batches:
- Batch A: Fix ColorPicker gradient sync, tenant custom logo, unarchive cards, board backgrounds
- Batch B: My Work view, card copy/duplicate, card numbering (BOARD-123)
- Batch C: Due date reminders (cron), card watching with notifications
- Batch D: Bulk card operations, column sorting, calendar view
- Batch E: Invite by link, board import/export (Pounce + Trello JSON)
- Batch F: Webhooks with HMAC signing, custom fields, automation rules engine

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/routes/api/admin/invites/+server.ts

@@ -0,0 +1,51 @@
+import { json, error } from '@sveltejs/kit';
+import type { RequestHandler } from './$types.js';
+import { withTenant } from '$lib/server/rls.js';
+import { requireTenantAdmin } from '$lib/server/guards.js';
+import crypto from 'crypto';
+
+// List all invites for the current tenant
+export const GET: RequestHandler = async ({ locals }) => {
+	const tenant = locals.tenant;
+	if (!tenant) throw error(400, 'Unknown tenant');
+	requireTenantAdmin(locals.user);
+
+	const invites = await withTenant(tenant.id, async (tx) => {
+		return tx.tenantInvite.findMany({
+			where: { tenantId: tenant.id },
+			orderBy: { expiresAt: 'desc' }
+		});
+	});
+
+	return json({ invites });
+};
+
+// Create a new invite
+export const POST: RequestHandler = async ({ locals, request }) => {
+	const tenant = locals.tenant;
+	if (!tenant) throw error(400, 'Unknown tenant');
+	requireTenantAdmin(locals.user);
+
+	const body = await request.json().catch(() => ({}));
+	const role = body.role === 'ADMIN' ? 'ADMIN' : 'MEMBER';
+	const maxUses = typeof body.maxUses === 'number' && body.maxUses > 0 ? body.maxUses : null;
+	const expiresInDays = typeof body.expiresInDays === 'number' && body.expiresInDays > 0 ? body.expiresInDays : 7;
+
+	const code = crypto.randomBytes(9).toString('base64url');
+	const expiresAt = new Date(Date.now() + expiresInDays * 24 * 60 * 60 * 1000);
+
+	const invite = await withTenant(tenant.id, async (tx) => {
+		return tx.tenantInvite.create({
+			data: {
+				tenantId: tenant.id,
+				code,
+				role,
+				expiresAt,
+				createdBy: locals.user!.id,
+				maxUses
+			}
+		});
+	});
+
+	return json({ invite }, { status: 201 });
+};