CartWise

Daniel Covington b77d0852a8 CW-STORY-05.3: model append-only price observations PriceObservation has zero mutation methods, enforced by a reflection test. Fixed a real bug found while writing the EF config: Product -> PriceObservation was wired Cascade (copy-paste), which would let deleting a Product silently destroy its price history. Changed to Restrict. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>		1 тиждень тому
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prompts	prompt guidance work	1 тиждень тому
decision-log.md	CW-STORY-05.1: model retailers and store locations	1 тиждень тому
prompt-process.md	prompt guidance work	1 тиждень тому
release-mvp-checklist.md	Epic 1	1 тиждень тому
scrum-backlog.md	CW-STORY-05.3: model append-only price observations	1 тиждень тому