Status: DONE

Task 047: EP05 Analysis Completion — Oberth Effect, Nozzle Lifespan, Remove Preliminary Flag

Goal

Complete the EP05 analysis module which is still marked as preliminary despite all data being available (Whisper STT + dialogue attribution done). Add quantitative analysis for two key physics claims that currently lack computation.

Scope

1. Remove PRELIMINARY flag: ep05-analysis.ts still has preliminary: true and [PENDING] markers on thermal/radiation/thrust values — remove these and use confirmed values from ep05.json
2. Nozzle lifespan analysis: The EP05 climax revolves around the 55h38m nozzle lifespan vs 55h12m burn time (26 min margin). Add a nozzleLifespanAnalysis() function that computes this margin and explores sensitivity to parameters
3. Oberth effect analysis: Add oberth_dv_gain() to Rust crate, WASM binding, and TypeScript analysis to verify the "3% efficiency gain" claim at Jupiter flyby (ep05-quote-07)
4. Science accuracy: Add EP05 verification items (Oberth 3%, nozzle margin) to science-accuracy.json
5. Update tests: Fix preliminary assertion, add tests for new functions

Dependencies

• ep05.json (confirmed data — DONE from Task 042)
• ep05_dialogue.json (attribution — DONE from Task 009/023)
• Rust crate orbital mechanics functions (orbits.rs)

Files to modify

• crates/solar-line-core/src/orbits.rs — add oberth_dv_gain()
• crates/solar-line-core/src/lib.rs — export new function
• crates/solar-line-wasm/src/lib.rs — WASM binding
• ts/src/ep05-analysis.ts — remove preliminary, add nozzle + Oberth analysis
• ts/src/ep05-analysis.test.ts — update tests
• reports/data/episodes/ep05.json — add explorations
• reports/data/summary/science-accuracy.json — add verification rows