Task 244: AI Costs Tests and Stats Refresh

Status: DONE

Description

Added article content validation and E2E tests for ai-costs.md (the last summary report without any), plus refreshed stale statistics.

Article Content Validation (7 tests)

• ✅ Cache hit rate 97.3%
• ✅ Total token count ~360M
• ✅ Haiku subagent cost $6.57
• ✅ API pricing (Opus $5/$25 MTok)
• ✅ Plan comparison (Max Plan, API-only)
• ✅ Efficiency measures (TodoWrite, max_turns, background)
• ✅ Update method (ccusage command)

E2E (4 tests)

• ✅ All main sections visible
• ✅ Multiple data tables render (6+)
• ✅ Pricing tables have model names
• ✅ Cache hit rate displayed

Stats Refresh

• ✅ Commit count: 349+ → 370+
• ✅ Task count: 243 → 244
• ✅ Test count: 2,477 → 2,488 (TS 1,946, E2E 165)

Stats

• TS tests: 1939 → 1946 (+7)
• E2E tests: 161 → 165 (+4)
• All 2,488 tests pass (0 failures)

Now ALL 9 summary reports have dedicated article content and/or E2E test coverage.