Initial commit: thbd-portal, duplicated from elmi-portal

Rebranded for Thunderbird Portal (THBD): numbering prefix EL->TH, all
"ELMI"/"ЭЛМИ" UI strings genericized, ELMI's real contract templates and
company legal/bank details removed (not applicable to this company), fresh
VAPID keypair and encryption key, fresh single-migration schema history.
Same architecture as elmi-portal: Web Push notifications, unread-chat app
badge, cookie-session auth.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Gh2UXUQUVBWroWEnn1FLFG

next.config.ts

@@ -0,0 +1,11 @@
+import type { NextConfig } from "next";
+
+const nextConfig: NextConfig = {
+  // Not using output: "standalone" — file-tracing only copies argon2's
+  // native .node binaries, not its JS loader, causing a segfault in
+  // production (same issue hit in the sibling top-tickets/project-claude
+  // repos). Deploying with the full node_modules via `next start` is simple
+  // enough for a single-VM deployment.
+};
+
+export default nextConfig;