Enable ckpool LOG_INFO loglevel for share statistics

Sets CKPOOL_LOGLEVEL=6 so ckpool emits per-share Accepted/Rejected
client log lines needed by the stats and difficulty distribution
features.

docker_entrypoint.sh

@@ -105,6 +105,10 @@ export UPDATE_INTERVAL_S=30
 # disabled the second bind is harmless (nothing connects to it).
 export TLS_INTERNAL_PORT=3437
 
+# CKPool loglevel: 6 = LOG_INFO, required for share-level logging
+# (Accepted/Rejected client lines) used by the stats feature.
+export CKPOOL_LOGLEVEL=6
+
 mkdir -p "${LOGDIR}" "${SOCKET_DIR}" /etc/ckpool
 
 # Render ckpool.conf using the same sed approach as the upstream
@@ -132,8 +136,8 @@ sed \
     -e "s|\${ZMQ_BLOCK}|${ZMQ_BLOCK}|g" \
     "${TEMPLATE}" > "${CONF}"
 
-echo "kamado-entrypoint: starting ckpool (solo, ${BITCOIND_VARIANT}) on port ${STRATUM_PORT}"
-/usr/local/bin/ckpool --btcsolo --config "${CONF}" --sockdir "${SOCKET_DIR}" --log-shares &
+echo "kamado-entrypoint: starting ckpool (solo, ${BITCOIND_VARIANT}) on port ${STRATUM_PORT}, loglevel ${CKPOOL_LOGLEVEL}"
+/usr/local/bin/ckpool --btcsolo --config "${CONF}" --sockdir "${SOCKET_DIR}" --log-shares -l "${CKPOOL_LOGLEVEL}" &
 CKPOOL_PID=$!
 
 # DB_PATH must live on the persisted main volume; the default