feat: reports, timeline toggles, and stock correction improvements (#236)

* refactor(frontend): modularize styles and polish modal/ui interactions

* feat: add report workflow and timeline/settings improvements

* fix: resolve CI failures for backend typing, lint, and playwright config

frontend/src/types/index.ts

@@ -215,6 +215,8 @@ export type SharedScheduleData = {
 	};
 	stockCalculationMode?: "automatic" | "manual";
 	shareStockStatus?: boolean;
+	upcomingTodayOnly?: boolean;
+	shareScheduleTodayOnly?: boolean;
 };
 
 export type ExpiredLinkData = {