feat(housekeeping): unify complete rebuild in gated preview

src/features/housekeeping/foundation/commands/confirmation.ts

@@ -0,0 +1,32 @@
+import { fail, type HousekeepingResult, ok } from "../contracts";
+import type { HousekeepingCommand } from "./registry";
+
+export interface HousekeepingCommandConfirmation {
+	commandId: string;
+	risk: "safe" | "sensitive";
+	requiresReason: boolean;
+	reason?: string;
+}
+
+export function confirmHousekeepingCommand<I, O>(
+	command: HousekeepingCommand<I, O>,
+	reason: string | undefined,
+	correlationId: string,
+): HousekeepingResult<HousekeepingCommandConfirmation> {
+	const normalizedReason = reason?.normalize("NFC").trim() || undefined;
+	if (command.requiresReason && !normalizedReason) {
+		return fail("VALIDATION", "errors.housekeeping.validation", correlationId, {
+			reason: ["errors.validation.required"],
+		});
+	}
+
+	return ok(
+		{
+			commandId: command.id,
+			risk: command.risk,
+			requiresReason: command.requiresReason,
+			...(normalizedReason === undefined ? {} : { reason: normalizedReason }),
+		},
+		correlationId,
+	);
+}