feat(admin-auth): add first-start onboarding flow and dev db reset command

apps/admin/scripts/seed-support-user.ts

@@ -0,0 +1,11 @@
+import { ensureSupportUserBootstrap } from "../src/lib/auth/server"
+
+async function main() {
+  await ensureSupportUserBootstrap()
+  console.log("Support user bootstrap completed")
+}
+
+main().catch((error) => {
+  console.error(error)
+  process.exit(1)
+})