Allow large activity Excel imports (40k+ rows) with bigger chunks and caches.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/api/src/common/excel-import-session.ts

@@ -1,16 +1,24 @@
 import { randomBytes } from 'node:crypto';
 import { BadRequestException } from '@nestjs/common';
 
-export const EXCEL_IMPORT_CHUNK_SIZE = 80;
+export const EXCEL_IMPORT_CHUNK_SIZE = 150;
 /** بعد از این تعداد ردیف، کلاینت حتماً چندمرحله‌ای می‌رود (پیش‌نمایش هم نشان می‌دهد) */
 export const EXCEL_IMPORT_LARGE_THRESHOLD = 80;
 const SESSION_TTL_MS = 45 * 60 * 1000;
 const MAX_SESSIONS = 40;
 
+export type ExcelImportLookupCaches = {
+  user: Map<string, string | null>;
+  person: Map<string, string | null>;
+  company: Map<string, string | null>;
+  deal: Map<string, string | null>;
+};
+
 type ExcelImportSession = {
   organizationId: string;
   rows: Array<Record<string, string>>;
   expiresAt: number;
+  caches: ExcelImportLookupCaches;
 };
 
 const sessions = new Map<string, ExcelImportSession>();
@@ -40,6 +48,12 @@ export function createExcelImportSession(
     organizationId,
     rows,
     expiresAt: Date.now() + SESSION_TTL_MS,
+    caches: {
+      user: new Map(),
+      person: new Map(),
+      company: new Map(),
+      deal: new Map(),
+    },
   });
   return id;
 }
@@ -64,6 +78,24 @@ export function destroyExcelImportSession(sessionId: string | undefined) {
   sessions.delete(sessionId);
 }
 
+export function getExcelImportSessionCaches(
+  sessionId: string,
+  organizationId: string,
+): ExcelImportLookupCaches {
+  purgeExpired();
+  const session = sessions.get(sessionId);
+  if (!session || session.organizationId !== organizationId) {
+    return {
+      user: new Map(),
+      person: new Map(),
+      company: new Map(),
+      deal: new Map(),
+    };
+  }
+  session.expiresAt = Date.now() + SESSION_TTL_MS;
+  return session.caches;
+}
+
 export function parseChunkParams(raw: {
   offset?: string | number;
   limit?: string | number;