Add resource limits columns to upgrade script

Add database migrations for 7 new resource limit fields in packages_package table
to support users upgrading from older CyberPanel versions:
- memoryLimitMB (default: 1024)
- cpuCores (default: 1)
- ioLimitMBPS (default: 10)
- inodeLimit (default: 400000)
- maxConnections (default: 10)
- procSoftLimit (default: 400)
- procHardLimit (default: 500)

These columns are automatically added during upgrade via CLMigrations() function.
Uses try/except to safely handle cases where columns already exist.

plogical/upgrade.py

@@ -2489,6 +2489,49 @@ CREATE TABLE `websiteFunctions_backupsv2` (`id` integer AUTO_INCREMENT NOT NULL
             except:
                 pass
 
+            ## Resource Limits columns for cgroups v2 integration
+            query = "ALTER TABLE packages_package ADD COLUMN memoryLimitMB INT DEFAULT 1024;"
+            try:
+                cursor.execute(query)
+            except:
+                pass
+
+            query = "ALTER TABLE packages_package ADD COLUMN cpuCores INT DEFAULT 1;"
+            try:
+                cursor.execute(query)
+            except:
+                pass
+
+            query = "ALTER TABLE packages_package ADD COLUMN ioLimitMBPS INT DEFAULT 10;"
+            try:
+                cursor.execute(query)
+            except:
+                pass
+
+            query = "ALTER TABLE packages_package ADD COLUMN inodeLimit INT DEFAULT 400000;"
+            try:
+                cursor.execute(query)
+            except:
+                pass
+
+            query = "ALTER TABLE packages_package ADD COLUMN maxConnections INT DEFAULT 10;"
+            try:
+                cursor.execute(query)
+            except:
+                pass
+
+            query = "ALTER TABLE packages_package ADD COLUMN procSoftLimit INT DEFAULT 400;"
+            try:
+                cursor.execute(query)
+            except:
+                pass
+
+            query = "ALTER TABLE packages_package ADD COLUMN procHardLimit INT DEFAULT 500;"
+            try:
+                cursor.execute(query)
+            except:
+                pass
+
             try:
                 connection.close()
             except: