Status: DONE

Task 048: Report UX Polish — Number Formatting, Calculator Feedback, Animation Robustness

Goal

Polish the interactive report experience with targeted fixes for number display, calculator usability, and animation resource management.

Scope

1. Number formatting in scenario tables: Values ≥1000 switch to exponential notation (e.g. 1202 → "1.20e+03"), which is jarring. Use toLocaleString for values under a high threshold, only switch to exponential for truly large numbers (≥1e6).
2. Calculator invalid input feedback: Currently silently returns on invalid input, leaving stale results visible. Show "値が無効です" feedback.
3. Animation visibility handler: Pause requestAnimationFrame loop when page tab is hidden to save resources.
4. WASM build verification: Log warnings when WASM files are missing during build (helps debug deployment issues).

Dependencies

• templates.ts (scenario table rendering)
• calculator.js (input validation)
• orbital-animation.js (animation loop)
• build.ts (WASM copy step)

Files to modify

• ts/src/templates.ts — scenario table number formatting
• ts/src/calculator.js — invalid input feedback
• ts/src/orbital-animation.js — visibility change handler
• ts/src/build.ts — WASM file verification
• Tests as needed