Task 638: Add Favicon and Enhance 404 Page

完了 ← タスク一覧

Task 638: Add Favicon and Enhance 404 Page

Status: DONE

Problem

No favicon for browser tabs — site shows generic browser icon
404 page only has "go home" link — no navigation suggestions to help lost users

Solution

Added inline SVG favicon (☀ sun emoji) via data URI in HTML template
Enhanced 404 page with "主要ページ" section listing episode pages, cross-episode analysis, transcriptions, calculator, and explorer
Added E2E tests for favicon presence and 404 navigation suggestions

Files Modified

ts/src/templates.ts — Added favicon link, enhanced 404 page content
ts/e2e/reports.spec.ts — Added favicon and 404 suggestion tests