Refactor Partner and POS models to replace 'serial' with 'serial_number' and update related services and DTOs

- Updated PartnerAccountQuotaAllocation model to change license relation.
- Refactored Pos model to replace 'serial' with 'serial_number' across all references.
- Modified BusinessActivitiesService to include license activation details in responses.
- Adjusted ComplexPosesService to reflect changes in the Pos model.
- Updated PartnerService to include a new method for updating partner profiles.
- Created UpdatePartnerProfileDto for partner profile updates.
- Added migration to drop 'serial' column and add unique 'serial_number' column in poses table.

prisma/migrations/20260423214958_init/migration.sql

@@ -0,0 +1,16 @@
+/*
+  Warnings:
+
+  - You are about to drop the column `serial` on the `poses` table. All the data in the column will be lost.
+  - A unique constraint covering the columns `[serial_number]` on the table `poses` will be added. If there are existing duplicate values, this will fail.
+
+*/
+-- DropIndex
+DROP INDEX `poses_serial_key` ON `poses`;
+
+-- AlterTable
+ALTER TABLE `poses` DROP COLUMN `serial`,
+    ADD COLUMN `serial_number` VARCHAR(191) NULL;
+
+-- CreateIndex
+CREATE UNIQUE INDEX `poses_serial_number_key` ON `poses`(`serial_number`);