Closes#14
Five globals (MIN_PA_VL, MIN_PA_VR, MIN_TBF_VL, MIN_TBF_VR, CARDSET_ID)
were derived from PLAYER_DESCRIPTION at module load time, creating a
hidden ordering dependency: any value baked in before the CLI overrides
PLAYER_DESCRIPTION would be silently wrong if a caller relied on the
derived relationship. The CLI explicitly sets all of them anyway, so
replacing with scalar defaults makes the module self-contained and safe.
Also collapses LAST_WEEK_RATIO dead ternary (both branches were 0.0).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
