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§6.6 Tier-1 Toolchain (Git for Windows, 7-Zip) now included in final state validation. Checks: - 'Git for Windows (git.exe in PATH)' - '7-Zip (7z.exe in PATH)' Added to both initial validation pass and re-validation pass (post-remediation). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>