docs(roadmap): merge lineage + FK cascade в единый epic с design draft
Объединил два отдельных backlog item'а (Lineage / dependency graph + Cross-
dictionary FK с cascade rules) в один epic "Dictionary relationships v2" —
они complementary halves: lineage = read-side (discovery), cascade = write-side
(close semantics). Operate over same FK metadata, удобнее spec'ить вместе.
Design DRAFT 318 строк / 15KB:
- 3 stakeholder pain points (data stewards, Альтум consumers, schema editors)
- IN scope: A (lineage discovery 4 endpoints+UI), B (cascade rules block/warn/cascade), C (cross-cutting outbox+SLO)
- OUT scope (defer): schema-time validation, graph viz, multi-hop, cross-bundle
- 3 architecture options per area + recommendation (A=in-memory+MV hybrid, B=sync для v2)
- 4 D-questions для plan-eng-review
- 3 pre-code assignment items (Альтум behavior, UX preference, bundle versioning)
- 4-phase implementation (3-5 нед CC total)
- 4 risks + mitigations
- Success criteria с конкретными SLO targets
Zimin A.N.
0c79821f8e