docs: Zusatzfunktionen (Kai, 25.06.2025) in TODO.md ergänzt

utils/checkSession.ts

@@ -7,7 +7,10 @@ export async function checkSession(): Promise<boolean> {
 
     if (typeof window === "undefined") return false;
 
-    return window[expectedGlobalVar] !== undefined;
+    return (
+      (window as unknown as Record<string, unknown>)[expectedGlobalVar] !==
+      undefined
+    );
   } catch (error) {
     return false;
   }

utils/loadWindowVariables.ts

@@ -54,13 +54,13 @@ export async function loadWindowVariables(): Promise<{
         const win = window as unknown as CustomWindow;
 
         const variablesObj: Record<string, any> = requiredVars.reduce(
-          (acc, variable) => {
+          (acc: Record<string, any>, variable: string) => {
             if (win[variable] !== undefined) {
               acc[variable.replace("win_", "")] = win[variable];
             }
             return acc;
           },
-          {}
+          {} as Record<string, any>
         );
 
         const kueData =