feat: show persisted investment data and sync state

Consume the provided resource-envelope API snapshot. Preserve financial snapshots during
refresh, observe synchronization without importing, and fence late responses across
account and connection changes.

src/features/instrument-details/ui/InstrumentChart.view.tsx

@@ -177,7 +177,13 @@ const InstrumentChart: FC<InstrumentChartProps> = (props) => {
 						</Accordion>
 					</>
 				) : (
-					<Text c="dimmed">{t("stock.noCandles")}</Text>
+					<Text c="dimmed">
+						{t(
+							vm.candlesState.partial
+								? "investment.partial"
+								: "stock.noCandles",
+						)}
+					</Text>
 				)
 			) : null}
 		</InstrumentSection>