Fix save progress bug

lib/create/api.ts

@@ -41,6 +41,7 @@ export async function fetchAuthSession(): Promise<{
 export async function requestMagicLink(
   email: string,
   nextPath?: string,
+  draft?: CreateFlowState,
 ): Promise<{ ok: true } | { ok: false; error: string; retryAfterMs?: number }> {
   const res = await fetch("/api/auth/magic-link/request", {
     method: "POST",
@@ -49,6 +50,7 @@ export async function requestMagicLink(
     body: JSON.stringify({
       email,
       ...(nextPath ? { next: nextPath } : {}),
+      ...(draft && Object.keys(draft).length > 0 ? { draft } : {}),
     }),
   });
   const data = await parseJson<{ error?: string; retryAfterMs?: number }>(res);

lib/create/buildCreateFlowDraftPayload.ts

@@ -0,0 +1,12 @@
+import type { CreateFlowState, CreateFlowStep } from "../../app/(app)/create/types";
+
+/** Snapshot for save-progress / draft transfer (includes optional resume step). */
+export function buildCreateFlowDraftPayload(
+  state: CreateFlowState,
+  currentStep?: CreateFlowStep | null,
+): CreateFlowState {
+  return {
+    ...state,
+    ...(currentStep ? { currentStep } : {}),
+  };
+}

lib/server/validation/createFlowSchemas.ts

@@ -222,3 +222,10 @@ export const putDraftBodySchema = z.object({
   payload: createFlowStateSchema,
 });
 export type CreateFlowStateValidated = z.infer<typeof createFlowStateSchema>;
+
+export const magicLinkRequestBodySchema = z.object({
+  email: z.string(),
+  next: z.string().optional(),
+  draft: createFlowStateSchema.optional(),
+});
+export type MagicLinkRequestBody = z.infer<typeof magicLinkRequestBodySchema>;