Refactor restart tracking and add missing model casts

- Consolidate duplicate restart tracking logic in GetContainersStatus
- Add last_restart_type string cast to all 8 standalone database models

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/Models/StandaloneClickhouse.php

@@ -20,6 +20,7 @@ class StandaloneClickhouse extends BaseModel
         'clickhouse_password' => 'encrypted',
         'restart_count' => 'integer',
         'last_restart_at' => 'datetime',
+        'last_restart_type' => 'string',
     ];
 
     protected static function booted()

app/Models/StandaloneDragonfly.php

@@ -20,6 +20,7 @@ class StandaloneDragonfly extends BaseModel
         'dragonfly_password' => 'encrypted',
         'restart_count' => 'integer',
         'last_restart_at' => 'datetime',
+        'last_restart_type' => 'string',
     ];
 
     protected static function booted()

app/Models/StandaloneKeydb.php

@@ -20,6 +20,7 @@ class StandaloneKeydb extends BaseModel
         'keydb_password' => 'encrypted',
         'restart_count' => 'integer',
         'last_restart_at' => 'datetime',
+        'last_restart_type' => 'string',
     ];
 
     protected static function booted()

app/Models/StandaloneMariadb.php

@@ -21,6 +21,7 @@ class StandaloneMariadb extends BaseModel
         'mariadb_password' => 'encrypted',
         'restart_count' => 'integer',
         'last_restart_at' => 'datetime',
+        'last_restart_type' => 'string',
     ];
 
     protected static function booted()

app/Models/StandaloneMongodb.php

@@ -19,6 +19,7 @@ class StandaloneMongodb extends BaseModel
     protected $casts = [
         'restart_count' => 'integer',
         'last_restart_at' => 'datetime',
+        'last_restart_type' => 'string',
     ];
 
     protected static function booted()

app/Models/StandaloneMysql.php

@@ -21,6 +21,7 @@ class StandaloneMysql extends BaseModel
         'mysql_root_password' => 'encrypted',
         'restart_count' => 'integer',
         'last_restart_at' => 'datetime',
+        'last_restart_type' => 'string',
     ];
 
     protected static function booted()

app/Models/StandalonePostgresql.php

@@ -21,6 +21,7 @@ class StandalonePostgresql extends BaseModel
         'postgres_password' => 'encrypted',
         'restart_count' => 'integer',
         'last_restart_at' => 'datetime',
+        'last_restart_type' => 'string',
     ];
 
     protected static function booted()

app/Models/StandaloneRedis.php

@@ -19,6 +19,7 @@ class StandaloneRedis extends BaseModel
     protected $casts = [
         'restart_count' => 'integer',
         'last_restart_at' => 'datetime',
+        'last_restart_type' => 'string',
     ];
 
     protected static function booted()