feat(orders): manual order optionally creates a linked project

Add `create_project` flag (default true) to `CreateOrderSchema` and
`CreateOrderData`. When true and `quotation_id` is absent, `createOrder`
creates a `projects` row sharing the order's shared-pool number and
`order_id` link — mirroring the from-quotation flow. The route audits
the new project creation when it occurs.

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

src/routes/admin/orders.ts

@@ -216,6 +216,16 @@ export default async function ordersRoutes(
         entityId: result.id,
         description: `Vytvořena objednávka ${result.order_number}`,
       });
+      if (result.project_id) {
+        await logAudit({
+          request,
+          authData: request.authData,
+          action: "create",
+          entityType: "project",
+          entityId: result.project_id,
+          description: `Vytvořen projekt k objednávce ${result.order_number}`,
+        });
+      }
       return success(
         reply,
         { id: result.id },