feat: user application dashboard (#727)

Co-authored-by: Elias Schneider <login@eliasschneider.com>

frontend/src/lib/utils/form-util.ts

@@ -54,6 +54,13 @@ export function createForm<T extends z.ZodType<any, any>>(schema: T, initialValu
 					inputs[input as keyof z.infer<T>].error = null;
 				}
 			}
+			// Update the input values with the parsed data
+			for (const key in result.data) {
+				if (Object.prototype.hasOwnProperty.call(inputs, key)) {
+					inputs[key as keyof z.infer<T>].value = result.data[key];
+				}
+			}
+
 			return inputs;
 		});
 		return success ? data() : null;

frontend/src/lib/utils/zod-util.ts

@@ -0,0 +1,11 @@
+import z from 'zod/v4';
+
+export const optionalString = z
+	.string()
+	.transform((v) => (v === '' ? undefined : v))
+	.optional();
+
+export const optionalUrl = z
+	.url()
+	.optional()
+	.or(z.literal('').transform(() => undefined));