Petrolyst server infrastructure: Traefik, Trino and Superset

Traefik as the server-wide edge (TLS via Let's Encrypt, dashboard on
traefik.petrolyst.com behind oauth2-proxy and Keycloak). The
fuel-monitoring stack: Superset on atoma.petrolyst.com with Keycloak login
and Petrolyst branding, Trino reading the TimescaleDB fuel-db as catalog
"fuel". Customization lives in petrolyst-insights/, deployment in the other
folders.

Deploys run server-side (deploy/deploy.sh) from a Gitea workflow or
manually; releases are immutable, Superset metadata is backed up before
migrations, and deploy/rollback.sh restores it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

stacks/fuel-monitoring/trino/etc/jvm.config

@@ -0,0 +1,14 @@
+-server
+-agentpath:/usr/lib/trino/bin/libjvmkill.so
+-XX:InitialRAMPercentage=75
+-XX:MaxRAMPercentage=75
+-XX:G1HeapRegionSize=32M
+-XX:+ExplicitGCInvokesConcurrent
+-XX:+HeapDumpOnOutOfMemoryError
+-XX:+ExitOnOutOfMemoryError
+-XX:-OmitStackTraceInFastThrow
+-XX:ReservedCodeCacheSize=256M
+-XX:PerMethodRecompilationCutoff=10000
+-XX:PerBytecodeRecompilationCutoff=10000
+-Djdk.attach.allowAttachSelf=true
+-Djdk.nio.maxCachedBufferSize=2000000