debug(deploy): temporarily enable sentry-cli request/response logging

Diagnostic only -- narrowing down whether the sourcemap upload's SSL
error is real or a red herring next to the CSRF 403 seen in manual
reproduction. Will be removed once the root cause is confirmed.

docker/Dockerfile

@@ -22,6 +22,9 @@ WORKDIR /app
 RUN apk add --no-cache ca-certificates
 ENV SSL_CERT_FILE=/etc/ssl/certs/ca-certificates.crt
 ENV SSL_CERT_DIR=/etc/ssl/certs
+# Temporary — full sentry-cli request/response logging to diagnose the
+# sourcemap upload failure. Remove once resolved.
+ENV SENTRY_LOG_LEVEL=debug
 
 COPY --from=deps /app/node_modules ./node_modules
 COPY . .