Fix missing Wahoo OAuth env vars in journal container

WAHOO_CLIENT_ID, WAHOO_CLIENT_SECRET, and WAHOO_WEBHOOK_TOKEN were in
SOPS secrets but never passed through to the journal service in
docker-compose.yml, causing the OAuth authorize URL to have an empty
client_id.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

infrastructure/docker-compose.yml

@@ -31,6 +31,9 @@ services:
       SENTRY_RELEASE: ${SENTRY_RELEASE:-}
       SMTP_URL: ${SMTP_URL:-}
       SMTP_FROM: ${SMTP_FROM:-trails.cool <noreply@trails.cool>}
+      WAHOO_CLIENT_ID: ${WAHOO_CLIENT_ID:-}
+      WAHOO_CLIENT_SECRET: ${WAHOO_CLIENT_SECRET:-}
+      WAHOO_WEBHOOK_TOKEN: ${WAHOO_WEBHOOK_TOKEN:-}
     healthcheck:
       test: ["CMD-SHELL", "curl -sf http://localhost:3000/api/health || exit 1"]
       interval: 15s