Package verified Dune checkpoints for TrueNAS and HTTPS proxying

Serve built Workers directly through pinned Miniflare with persistent D1-compatible storage and startup migrations. Build and verify Docker images in CI; publish main checkpoints to GHCR for manual TrueNAS updates on port 33046. Preserve explicit public-origin checks and LAN-compatible cryptographic operation IDs.

Validation: 5,153 offline tests, typecheck, lint and build; 49 HTTP integration cases; HTTPS-origin create/join/chat/seat protection, foreign-origin rejection, exact saved-seat restart and browser asset serving. Independent persistence/proxy review completed. Clean Docker CI and actual NAS installation follow this source checkpoint.

db/env.d.ts

@@ -1,5 +1,6 @@
 declare namespace Cloudflare {
   interface Env {
     DB: D1Database;
+    DUNE_PUBLIC_ORIGIN?: string;
   }
 }