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- SECURITY.md: add bcrypt v6 reference and mandatory SESSION_SECRET note - CODE_OF_CONDUCT.md: add enforcement contact (GitHub Private Reporting) - BACKLOG.md: add completed features table entries for v0.5.0 through v0.7.0 - docs/SPEC.md: add supported languages table with Italian (v0.5.8) - Remove CLAUDE.md.proposed (tracked, deleted from disk)