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- CLAUDE.md: 4-tier feature roadmap appended after the build-order section (launch blockers → moat features). Future sessions reference this to know which tier a new feature belongs to. - docs/TIER1_PLAN.md: detailed sequencing for the 8 blocks of Tier 1 work (auth, authz, rate limiting, notifications, CSV import, billing, backups, privacy) with schema changes, endpoints, tests, and effort estimates per block. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>