joungmin bcfc6b2402 [Architect] Refs #204 — adopt dose_variants design (ADR-0001) ...

Resolves the long-pending dose variant decision before Phase 1 schema work:
- habit.dose_variants[] added (id/label/dose_text/context_tags/condition_tags/is_minimum), no cardinality cap.
- tracker_entry gains variant_id + context_snapshot{location,condition}.
- reflection gains weekly minimum_ratio (hint-only).
- data-model.md: R9 (≤4) retired; new R9 (no cap, UX-side enforcement) + R10 (weekly minimum_ratio hint, no threshold).
- docs/adr/0001-dose-variants.md captures rationale + alternatives.

Why now: Phase 1 (#204) needs the final schema shape before Drift DDL is drawn.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-06-11 16:37:35 +09:00

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