rsp2k
cdb3c7b568
freeroute exited 0 and said nothing when it dropped connections, which cost real diagnosis time: on rc4 two simple two-pin nets came back with no copper and no explanation. The grid now records each connection it could not route, the exact check adds each it rejects, and the CLI lists them on stderr (the SES is still written; the exit code stays 0, as the JAR's). A connection whose ends both sit in one zone of its net is listed apart, as left to the zone fill: freeroute does not route through a zone it cannot trust to be solid, but KiCad's fill often joins those pads anyway.