2026-05-02: Dashboard & Asset CRUD Fixes

Context

Beta testing revealed 4 backend/frontend mismatches and 2 UI gaps. This plan covers the second round of fixes following the May 2026 initial release.

One chart, two filter bars: the “Net Worth” (previously “Total”) mode already shows assets as positive areas and liabilities as negative areas when Y-axis is fixed. No second dedicated chart needed. Added time-range filters (1D | 7D | 1M | 3M | YTD | 1Y | ALL) to the existing chart.
Dashboard stat cards: replaced the 3 generic cards with Net Worth + Total Assets + Total Liabilities for clearer financial context.
Allocation chart — assets only: liabilities are not asset allocations. LIABILITIES group is excluded from the allocation pie chart.
acquisitionDate in API response: exposed as a computed field (derived from the ACQUIRE transaction) rather than exposing the full transactions array.

#	Bug	Root Cause	Fix
BUG-1	Y-axis shows only €0 on Net Worth chart	`stackOffset="sign"` on AreaChart corrupts Y domain for non-stacked areas	Conditional `stackOffset` + `domain={['auto','auto']}` on YAxis
BUG-2	Category/tag not saved on edit or after create	`PUT /assets/:id` controller passed only `name/quantity/assetTypeId` to service, omitting `categoryIds`, `tagIds`, `acquisitionDate`	Controller updated to pass all DTO fields
BUG-3	Acquisition date empty in edit dialog	`AssetResponseDto` had no `acquisitionDate` field	Added computed `acquisitionDate` from ACQUIRE transaction to response
BUG-4	Allocation chart included loan/liability assets	`allocationByType` built from all assets	Filter LIABILITIES group from allocation data

#	What
IMP-1	Net Worth History: time range filter (1D/7D/1M/3M/YTD/1Y/ALL)
IMP-2	Dashboard: Net Worth + Total Assets + Total Liabilities stat cards
CON-1	AGENTS.md Convention #9 added: Full-Stack Coverage Rule