Task 595: EP02 Report Review Fixes

Status: DONE

External draft review (Task agent, Sonnet) of ep02.md identified several issues:

3D viewer caption: Only describes controls, not content — add analytical description
87日 vs 107日 clarification: 3D viewer says "87日" but margin gauge says "107日" — clarify in caption that 87日 is accel-only model
Undefined radiation terms: DDD, mil Al, krad need brief explanations in context
B-plane/TCM undefined: Navigation terms need parenthetical definitions
RS (Saturn radii) undefined: RJ defined but RS not
RK4 unexplained: Add "(4次ルンゲクッタ法)" parenthetical

Isp in glossary — already defined in EP01 glossary and cross-episode glossary (shared glossary renders at bottom)
brachistochrone — per CLAUDE.md, English preferred; EP01 glossary defines it
Quote timestamp format — consistent within the report
2-phase model appearing before explanation — chart order matches analysis structure