Task 286: Stats Refresh (284→285 tasks, 2142→2147 TS tests)

Status: DONE

Motivation

Routine stats refresh after Tasks 284-285 added new tests (transcription accuracy comparison + Whisper turbo upgrade). Report statistics were stale.

Changes

1. ai-costs.md: Updated task count 284→285, TS tests 2,142→2,147, total tests 2,733→2,738
2. tech-overview.md: Updated task count 284→285, test totals 2,733→2,738, TS tests 2,142→2,147, body text task count 284→285
3. article-content-validation.test.ts: Updated hardcoded expectations (284→285, 2,142→2,147)

Verification

All 2,147 TS tests pass after update.