Merge pull request #30 from HeliCorgi/wp15-proposal-package

WP15: proposal package — README first screen, docs/ tree with R16, adoption artifacts

Merge pull request #29 from HeliCorgi/wp14-cost-fom

WP14: absolute cost ranges + derived CU anchor + FoM/prioritization upgrade

Merge pull request #28 from HeliCorgi/wp13-kit-trade-edt

WP13: kit-class trade study + EDT physics (aligned-dipole band model)

Merge pull request #26 from HeliCorgi/fixpack-pre-wp13

Pre-WP13 fix-pack: spec/README staleness, R14 audit teeth, wp3 schema, stat caveats

Merge pull request #17 from HeliCorgi/wp10-forensics

WP10c - Keep-out violation forensics: read-only replay, D13 hypothesis refuted (clean-abort ellipse mechanism; negative result, first-class)