root febdc8beab feat: Add upsert behavior for battery groups ... When adding batteries with the same brand-type-chemistry combination as an existing group, the quantity is now added to the existing group instead of failing with a duplicate error. Changes: - Update POST /api/batteries to check for existing group and upsert - Add isNew flag to API response for UI feedback - Update AddBatteryModal to show contextual success message - Document upsert behavior in FSD.md and TSD.md 🤖 Generated with [Qoder][https://qoder.com]		2026-01-19 17:11:55 +00:00
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FSD.md	feat: Add upsert behavior for battery groups	2026-01-19 17:11:55 +00:00
TSD.md	feat: Add upsert behavior for battery groups	2026-01-19 17:11:55 +00:00