Guillem Arias 1011db2883 feat(charts): give sankey and goal tooltips their missing context rows ...

Chart tooltips answer three stacked questions: context (what am I
looking at), value (how much), relation (vs what). Time-series already
had all three; the other two were missing rows.

- Sankey links showed a bare "$X (Y%)" with no indication of which
  flow was hovered. Links now lead with a swatch-dotted
  "Source → Target" context line; nodes get the same dot + name
  treatment, tying the card to the ribbon color. The context builder
  escapes node names centrally (they're user-named categories).
- Goal projection adds a tertiary relation line — "52% of $20K
  target" — computed from the payload the chart already carries, for
  both the saved and projected segments. Hidden when the goal has no
  positive target. Template is i18n-wired like the existing tooltip
  strings (goals.show.projection.tooltip_target_relation).

Verified with Playwright against the running app: all three surfaces
pass computed-style and content assertions.

2026-06-05 09:40:13 +02:00

23 KiB

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