refactor: remover funções, tipos e exports não utilizados

Remove createActionHandler, validateHashToken, decimalSchema,
optionalPeriodSchema, dateStringSchema, amountSchema, FeedbackDialog
standalone, CalendarEventType, parseDateKey, entre outros.

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

lib/actions/helpers.ts

@@ -1,6 +1,5 @@
 import { revalidatePath, revalidateTag } from "next/cache";
 import { z } from "zod";
-import { getUser } from "@/lib/auth/server";
 import type { ActionResult } from "./types";
 import { errorResult } from "./types";
 
@@ -58,72 +57,3 @@ export function revalidateForEntity(
 		revalidateTag("dashboard", "max");
 	}
 }
-
-/**
- * Options for action handler
- */
-interface ActionHandlerOptions {
-	/** Paths to revalidate after successful execution */
-	revalidatePaths?: string[];
-	/** Entity to revalidate (uses predefined config) */
-	revalidateEntity?: keyof typeof revalidateConfig;
-}
-
-/**
- * Creates a standardized action handler with automatic user auth and error handling
- *
- * @param schema - Zod schema for input validation
- * @param handler - Handler function that receives validated data and userId
- * @param options - Additional options for the action
- * @returns Action function that can be called from client
- *
- * @example
- * ```ts
- * export const createItemAction = createActionHandler(
- *   createItemSchema,
- *   async (data, userId) => {
- *     await db.insert(items).values({ ...data, userId });
- *     return "Item criado com sucesso.";
- *   },
- *   { revalidateEntity: 'items' }
- * );
- * ```
- */
-export function createActionHandler<TInput, TResult = string>(
-	schema: z.ZodSchema<TInput>,
-	handler: (data: TInput, userId: string) => Promise<TResult>,
-	options?: ActionHandlerOptions,
-) {
-	return async (input: unknown): Promise<ActionResult<TResult>> => {
-		try {
-			// Get authenticated user
-			const user = await getUser();
-
-			// Validate input
-			const data = schema.parse(input);
-
-			// Execute handler
-			const result = await handler(data, user.id);
-
-			// Revalidate paths if configured
-			if (options?.revalidateEntity) {
-				revalidateForEntity(options.revalidateEntity);
-			} else if (options?.revalidatePaths) {
-				options.revalidatePaths.forEach((path) => revalidatePath(path));
-			}
-
-			// Return success with message (if result is string) or data
-			if (typeof result === "string") {
-				return { success: true, message: result };
-			}
-
-			return {
-				success: true,
-				message: "Operação realizada com sucesso.",
-				data: result,
-			};
-		} catch (error) {
-			return handleActionError(error);
-		}
-	};
-}