feat: Add monitoring alerts skeleton and enhance worker with notifications

src/CMSMicroservice.Infrastructure/Migrations/Scripts/20250601_MigrateParentIdToNetworkParentId.sql

@@ -0,0 +1,99 @@
+-- =====================================================================
+-- Migration Script: ParentId → NetworkParentId & LegPosition Assignment
+-- Date: 2025-06-01
+-- Purpose: Migrate existing User.ParentId data to new NetworkParentId + LegPosition binary tree structure
+-- =====================================================================
+
+BEGIN TRANSACTION;
+
+-- Step 1: Validation - Find users with more than 2 children (INVALID for binary tree)
+-- این کاربران باید قبل از Migration بررسی شوند
+SELECT 
+    ParentId, 
+    COUNT(*) as ChildCount,
+    STRING_AGG(CAST(Id AS VARCHAR), ', ') as ChildIds
+FROM Users
+WHERE ParentId IS NOT NULL
+GROUP BY ParentId
+HAVING COUNT(*) > 2;
+
+-- اگر نتیجه‌ای بود، باید دستی تصمیم بگیرید کدام 2 فرزند باقی بمانند!
+-- اگر نتیجه‌ای نبود، ادامه دهید:
+
+-- Step 2: Copy ParentId → NetworkParentId for all users
+UPDATE Users
+SET NetworkParentId = ParentId
+WHERE ParentId IS NOT NULL
+  AND NetworkParentId IS NULL;
+
+-- Step 3: Assign LegPosition (Left/Right) based on order
+-- برای هر Parent، اولین فرزند = Left، دومین فرزند = Right
+WITH RankedChildren AS (
+    SELECT 
+        Id,
+        ParentId,
+        ROW_NUMBER() OVER (PARTITION BY ParentId ORDER BY Id ASC) as ChildRank
+    FROM Users
+    WHERE ParentId IS NOT NULL
+)
+UPDATE Users
+SET LegPosition = CASE 
+    WHEN rc.ChildRank = 1 THEN 0  -- Left = 0 (enum value)
+    WHEN rc.ChildRank = 2 THEN 1  -- Right = 1 (enum value)
+    ELSE NULL  -- اگر بیشتر از 2 فرزند بود (نباید اتفاق بیفته)
+END
+FROM Users u
+INNER JOIN RankedChildren rc ON u.Id = rc.Id;
+
+-- Step 4: Validation - Check for orphaned nodes (Parent doesn't exist)
+SELECT 
+    Id,
+    NetworkParentId,
+    'Orphaned: Parent does not exist' as Issue
+FROM Users
+WHERE NetworkParentId IS NOT NULL
+  AND NetworkParentId NOT IN (SELECT Id FROM Users);
+
+-- اگر Orphan یافت شد، باید آنها را NULL کنید یا Parent صحیح تخصیص دهید
+
+-- Step 5: Validation - Verify binary tree integrity
+-- هر Parent باید حداکثر 2 فرزند داشته باشد
+SELECT 
+    NetworkParentId, 
+    COUNT(*) as ChildCount,
+    STRING_AGG(CAST(Id AS VARCHAR), ', ') as ChildIds
+FROM Users
+WHERE NetworkParentId IS NOT NULL
+GROUP BY NetworkParentId
+HAVING COUNT(*) > 2;
+
+-- اگر نتیجه خالی بود، Migration موفق است!
+
+-- Step 6: Statistics
+SELECT 
+    'Total Users' as Metric, 
+    COUNT(*) as Count 
+FROM Users
+UNION ALL
+SELECT 
+    'Users with NetworkParentId', 
+    COUNT(*) 
+FROM Users 
+WHERE NetworkParentId IS NOT NULL
+UNION ALL
+SELECT 
+    'Users with LegPosition Left', 
+    COUNT(*) 
+FROM Users 
+WHERE LegPosition = 0
+UNION ALL
+SELECT 
+    'Users with LegPosition Right', 
+    COUNT(*) 
+FROM Users 
+WHERE LegPosition = 1;
+
+-- Commit if validation passes
+COMMIT;
+
+-- ROLLBACK; -- اگر مشکل پیش آمد، uncomment کنید