begin new custom chart implementation for js ui

go/webui/README.md

@@ -37,7 +37,7 @@ See the runnable **`/wasm/kit`** demo page in `cmd/kjol-web` (Layers → Kjol Wa
   `Menu`*, `Submenu`, `EnvBadge`, `RemoteUpdateFlash`.
 - **Overlays/floating:** `Modal`/`ConfirmModal`/`WizardModal`, `Toast*`, `Tooltip`/
   `HoverTooltip`, `Popover`/`HoverPopover`, `Floating*`.
-- **Data:** `PrettyTable`, `AutoTable`, `CellGrid`, `ReactiveChart`, `Calendar`,
+- **Data:** `PrettyTable`, `AutoTable`, `CellGrid`, `Chart`, `Calendar`,
   `DatePicker`, `FuzzyMatch*` (+ pure matchers), `Tutorial`.
 - **Pure logic (no vdom):** `formatters.go` (`FormatPhoneNumber`, `FormatDate`, …) and
   `validation.go` (`IsEmailValid`, `CreateValidation`, …).
@@ -52,6 +52,7 @@ with a `// NOTE:` in the component's file. Concretely: dropdown/menu/tooltip/mod
 positioning is static (not computed); outside-click / Escape / hover-delay dismissal,
 auto-dismiss timers, and enter/exit animations are dropped (caller-driven); `AutoTable`
 omits virtual scrolling, column resize/reorder, inline editing, and the formula engine;
-`ReactiveChart` renders only its container (the example draws charts server-side with
-go-chart); a few `Form*` controls that needed canvas/async (`FormSignaturePad`,
+`Chart` renders only its container — the Solid kit's dependency-free SVG geometry is not
+yet ported (the example draws charts server-side with go-chart); a few `Form*` controls
+that needed canvas/async (`FormSignaturePad`,
 `FormAsyncCombobox`) are omitted. Everything compiles on native (SSR) and js/wasm.