fix(hermes): pin hermes-webui HERMES_HOME to the shared /data home

The unit comment always claimed the webui drives the same agent state as
the gateway, but the image bakes HERMES_HOME=/opt/data and no unit
overrode it. Podman auto-creates a fresh anonymous volume at every
image-VOLUME point on container recreation, so each restart reset the
webui's config home to the image-default template (provider: auto ->
openrouter.ai with no API key), while the gateway read the corrected
/data/config.yaml. Pin HERMES_HOME=/data so both processes share one
config/state root and config edits propagate without a recreate.

dankclaw/hermes/quadlet/hermes-webui.container

@@ -30,6 +30,7 @@ EnvironmentFile=/home/dank/serverAppConfigs/dankclaw/.env
 Environment=HERMES_WEBUI_HOST=0.0.0.0
 Environment=HERMES_WEBUI_PORT=8787
 Environment=HERMES_WEBUI_PASSWORD=${HERMES_WEBUI_PASSWORD}
+Environment=HERMES_HOME=/data
 # Headless host: never show the first-run wizard (a profile already
 # exists in /data from the gateway).
 Environment=HERMES_WEBUI_SKIP_ONBOARDING=1