feat(planning): ship holiday-aware planning and assistant upgrades

packages/db/src/seed-vacations.ts

@@ -8,6 +8,10 @@
  */
 
 import { PrismaClient } from "@prisma/client";
+import { loadWorkspaceEnv } from "./load-workspace-env.js";
+import { assertSafeSeedTarget } from "./safe-destructive-env.js";
+
+loadWorkspaceEnv();
 
 const prisma = new PrismaClient();
 
@@ -75,6 +79,7 @@ const YEARS = [2025, 2026, 2027];
 // ─── Main ─────────────────────────────────────────────────────────────────────
 
 async function main() {
+  assertSafeSeedTarget("db:seed:vacations");
   // Get admin user to act as approver (fall back to manager, then any user)
   const admin =
     (await prisma.user.findFirst({ where: { systemRole: "ADMIN" }, select: { id: true } })) ??