add history logs for missions

app/Models/Mission.php

@@ -5,6 +5,7 @@ namespace App\Models;
 use Illuminate\Database\Eloquent\Casts\Attribute;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\HasMany;
 use Illuminate\Database\Eloquent\Relations\MorphToMany;
 
 class Mission extends Model
@@ -20,6 +21,11 @@ class Mission extends Model
         );
     }
 
+    public function histories(): HasMany
+    {
+        return $this->hasMany(MissionHistory::class);
+    }
+
     public function roadItems(): MorphToMany
     {
         return $this->morphedByMany(RoadItemsProject::class, 'missionable');