feat(romhacks): add Discord rom-hack ingestion stack (DCE -> JDownloader -> RomM)

Inert by default: empty token keeps the orchestrator idle and DRY_RUN=true
suppresses downloads. Orchestrator exports per-generation forum threads via
DiscordChatExporter, extracts download links + art, stages metadata, and writes
JDownloader crawljobs. Armed here with an alt account token and all 11 romhack
forums, still in DRY_RUN pending first-cycle validation.

stacks/romhacks/stack.env

@@ -0,0 +1,28 @@
+# romhacks stack — INERT until armed.
+#
+# Use an ALT Discord account's token. Self-token use violates Discord ToS; read-only
+# export is the low-risk end of that gray zone, but an alt account that has joined
+# the server purely for this isolates any ban risk from your main account.
+TZ=America/Chicago
+
+# ── Discord (ALT account) ────────────────────────────────────────────────────
+# User token from the ALT account. Read-only export only. Rotating the alt's
+# password / full logout invalidates this — re-grab via DevTools Network tab.
+DISCORD_TOKEN=MTUxMzMyNDc1MTYxMzg1Mzc5Ng.GjT6qU.A-VRmDoca1iT2ys54IGQJhTbudqteb69Klhjbk
+# Guild (server) ID.
+GUILD_ID=1474050123347525652
+
+# ── Behavior ─────────────────────────────────────────────────────────────────
+# DRY_RUN=true  => export, parse, and stage metadata, but DO NOT enqueue any
+#                  downloads. Inspect /storage1/labdata/romhacks/metadata first.
+# DRY_RUN=false => write .crawljob files so JDownloader starts fetching.
+DRY_RUN=true
+# Seconds between harvest cycles (21600 = 6h).
+POLL_INTERVAL=21600
+# JDownloader in-container download root (maps to /storage1/labdata/romhacks/incoming).
+JD_DOWNLOAD_ROOT=/output
+
+# ── JDownloader noVNC UI (jlesage) ───────────────────────────────────────────
+# Password for the web UI (reachable at http://valhalla:8998, or via Caddy
+# internal-only once you add a site block). Set this before exposing it.
+VNC_PASSWORD=