fix(papermark): add missing EE env vars, increase RAM to 4096, add NODE_OPTIONS for build

- HANKO_API_KEY and NEXT_PUBLIC_HANKO_TENANT_ID are required at build time
  (module throws hard error if unset during page data collection)
- QSTASH_TOKEN, NEXT_PRIVATE_DOCUMENT_PASSWORD_KEY, NEXT_PRIVATE_VERIFICATION_SECRET
  added as placeholders/random values
- NODE_OPTIONS=--max-old-space-size=3584 for npm run build (Next.js OOM fix)
- RAM raised from 2048 to 4096 (Next.js build requires ~3.5GB heap)

json/papermark.json

@@ -20,7 +20,7 @@
       "config_path": "/opt/papermark/.env",
       "resources": {
         "cpu": 2,
-        "ram": 2048,
+        "ram": 4096,
         "hdd": 8,
         "os": "Debian",
         "version": "13"
@@ -37,4 +37,4 @@
       "type": "warning"
     }
   ]
-}
+}