Refresh generated project statistics and attribution

[Vilin97]

Regenerates README statistics and NOTICE from the accepted project cards and attribution notes. No proof sources change.

[greptile-apps]

Advisory cross-file review against Lean Pool's supervisory rubric. This is not by itself a significance, source-verification, or merge verdict.

[Low risk] Updates documentation statistics.

This statistics-only update appears safe to merge.

Summary

Updates the generated totals in README.md to 291 projects and 9,964,162 lines of Lean.

• Both totals match the repository at the reviewed head.
• No proof sources, project cards, or attribution files change.

_{Reviews (1) · Last reviewed commit: "Refresh generated project statistics and..." · Reviewed by Greptile}

[Vilin97]

🤖 LLM review — refactor (gpt-6.1-sol)

Reviewed head: d6be59f2fcf7b71d962967089da9972dd4ce4e51

Verdict: ✅ approve

The diff only refreshes the README totals to 291 projects and 9,964,162 lines of Lean. NOTICE, proof sources, and generation logic are unchanged, leaving code maintainability and proof robustness unchanged.

Aspect	Value
Scope	generated statistics refresh
Introduces tech debt	✅ no
Maintainability	➖ unchanged
Brittleness	➖ unchanged
Risk	✅ low

This mechanical metadata refresh introduces no maintenance debt requiring action before merging.

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Tokens: 197,368 in / 2,746 out · Tier: codex-subscription · Effort: xhigh · Billing: Codex subscription quota (no API credits) · Estimated cost: $0.4222 (Standard API equivalent; uncached input)
Automated review against .github/REFACTOR_REVIEW_RULES.md. Disagree? Reply on the PR; rules can be updated in a PR of their own.