Task 013: Episode 1 Reanalysis — Evidence & Multi-Parameter Exploration

Status: DONE

Goal

Address human feedback on Episode 1 analysis:

1. Add proper evidence citations (source URLs, episode timestamps) for all ship parameters
2. Replace single "implausible" verdict with multi-parameter scenario exploration
3. Explore what conditions would make the depicted 72h transfer plausible

Human Directives

• ケストレルの性能評価の根拠が無い (Kestrel performance evaluation lacks cited evidence)
• 分析は複数パターンを想定して議論すべき (Explore multiple parameter scenarios)

Scope

1. Add source field to ep01.json transfer entries citing worldbuilding doc URL and episode timestamps
2. Expand transfer analyses with multi-parameter scenarios:

- What mass would make 72h transfer feasible with 9.8 MN thrust?

- What thrust would be needed at 48,000t for 72h?

- What about gravity assists (Jupiter slingshot)?

- Different distance assumptions (opposition vs other alignments)

- What if "嵐の回廊" provides some astrodynamic shortcut?

1. Update verdicts: instead of flat "implausible", use "conditional" with boundary conditions
2. Add evidence citation infrastructure to report types
3. Update tests

Depends on

• Task 006 (original Episode 1 analysis)
• Task 012 (report enrichment)

Notes

• The worldbuilding source is note.com/yuepicos/n/n4da939fc40ed
• Key ambiguity: "約48000 t" — already noted in ideas/ep01_mass_ambiguity.md
• The analysis code already has massSensitivity() but it's not reflected in the report JSON