Analyze a Helldivers 2 mod's runtime log to answer "did it actually do anything, and where did it stop?" — stage-by-stage classification of a stage-based log, append-across-launches and UTC timestamp handling, correlating two mods' logs in one session, and JSON output for reports. Use when a mod appears to do nothing, when a feature silently no-ops, or when you need in-game evidence without launching the game.
