Task 303: Stats Refresh

Status: DONE

Description

Refreshed stats in ai-costs and tech-overview reports after Task 302:

• Task count: 300→302
• TS tests: 2,221→2,225
• E2E tests: 222→223
• Total tests: 2,820→2,825
• Commits: 440+→441+
• Updated body text references and validation test assertions