v0.4.2

Craps Sim 0.4.2 makes every chart label legible and fixes the Duel's blank first impression.

Fixed:

• A fresh Duel opened its replayed night at roll zero — an empty trajectory panel until a session pick was clicked. It now opens fully revealed.
• The trajectory chart's "population envelope · sampled n" provenance line was drawn on the bottom paint layer, where every wealth track painted over it; it now sits above the data, legibly.
• Hexbin edge cells overhung the axis gutters onto the tick numbers; cells are now culled by their full extent.

Changed:

• Every label that can sit on data marks now draws on a near-opaque ground pill, following an audit of all text-over-chart sites: the Explorer strip's hover readout; survival line-end, censor, and probe labels; the histogram's log-scale note, house-gap caption, pinned edge, brush mass, and tie-verdict banner; trajectory drift, mean, end-tick, and series labels ("night #N" and "bust" also no longer stack); hexbin quadrant counts; ladder percentile, 1×, and mean labels (with crowding avoidance); the Stake budget and confidence readouts; the ghost panel's copy; and Design's blended-edge label.

Full Changelog: v0.4.1...v0.4.2