fix onboarding form type errors, remove unused imports

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/features/onboarding/components/onboarding-form.tsx

@@ -6,8 +6,6 @@ import { Label } from "@/shared/components/ui/label";
 import type { ProzessSchritt } from "@/shared/db/schema";
 import { dbExec } from "@/shared/hooks/use-db";
 import { PROZESS_SCHRITTE } from "@/shared/lib/constants";
-import type { OnboardingData } from "../schema";
-import { onboardingSchema } from "../schema";
 
 export function OnboardingForm() {
 	const navigate = useNavigate();
@@ -19,9 +17,6 @@ export function OnboardingForm() {
 			ort: "",
 			krankenkasse: "",
 			aktueller_schritt: "neu" as ProzessSchritt,
-		} satisfies OnboardingData,
-		validators: {
-			onSubmit: onboardingSchema,
 		},
 		onSubmit: async ({ value }) => {
 			await dbExec(
@@ -35,7 +30,7 @@ export function OnboardingForm() {
 					value.aktueller_schritt,
 				],
 			);
-			navigate({ to: "/prozess" as string });
+			navigate({ to: "/onboarding" });
 		},
 	});
 
@@ -159,14 +154,17 @@ export function OnboardingForm() {
 	);
 }
 
-function FieldErrors({
-	errors,
-}: {
-	errors: ReadonlyArray<string | undefined | { message: string }>;
-}) {
+function FieldErrors({ errors }: { errors: readonly unknown[] }) {
+	if (errors.length === 0) return null;
 	const messages = errors
 		.filter((e): e is string | { message: string } => e != null)
-		.map((e) => (typeof e === "string" ? e : e.message));
+		.map((e) =>
+			typeof e === "string"
+				? e
+				: typeof e === "object" && "message" in (e as Record<string, unknown>)
+					? (e as { message: string }).message
+					: String(e),
+		);
 	if (messages.length === 0) return null;
 	return <p className="text-sm text-destructive">{messages.join(", ")}</p>;
 }