Add best share analysis page, miner column, and UI improvements

- Best share page: hex + binary hash comparison against network target,
  per-bit coloring showing exactly which bits prevented a valid block,
  toggle between network diff at time of finding vs current diff
- Capture best share hash from ckpool logs with one-time backfill
- Persist network difficulty at time of best share for historical accuracy
- Add miner (worker) column to blocks table via coinbase address matching
- Truncate block hashes in table with full hash on hover
- Increase hashrate chart Y-axis to 7 ticks for better readability

ckpool/entrypoint.sh

@@ -48,6 +48,7 @@ ZMQ_BLOCK="${ZMQ_BLOCK:-}"
 LOGDIR="${LOGDIR:-/var/log/ckpool}"
 SOCKET_DIR="${SOCKET_DIR:-/run/ckpool}"
 SHARE_LOG="${SHARE_LOG:-1}"
+CKPOOL_LOGLEVEL="${CKPOOL_LOGLEVEL:-6}"
 
 mkdir -p "$LOGDIR" "$SOCKET_DIR"
 
@@ -86,8 +87,10 @@ echo "[kamado] rendered ckpool.conf:"
 sed "s|\"pass\": \".*\"|\"pass\": \"<redacted>\"|" "$CONF"
 echo
 
-# Build command line
-CMD="/usr/local/bin/ckpool --btcsolo --config $CONF --sockdir $SOCKET_DIR"
+# Build command line.
+# -l 6 = LOG_INFO: enables per-share Accepted/Rejected log lines
+# that the kamado-api log tailer uses for share statistics.
+CMD="/usr/local/bin/ckpool --btcsolo --config $CONF --sockdir $SOCKET_DIR -l $CKPOOL_LOGLEVEL"
 if [ "$SHARE_LOG" = "1" ]; then
     CMD="$CMD --log-shares"
 fi