fix : 모델, BOM 구성 수정

- 설계용 모델, BOM 기능 추가

app/Models/Design/BomTemplate.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Models\Design;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class BomTemplate extends Model
+{
+    use SoftDeletes;
+
+    protected $table = 'bom_templates';
+
+    protected $fillable = [
+        'tenant_id','model_version_id','name','is_primary','notes',
+    ];
+
+    protected $casts = [
+        'is_primary' => 'boolean',
+    ];
+
+    public function modelVersion() {
+        return $this->belongsTo(ModelVersion::class, 'model_version_id');
+    }
+
+    public function items() {
+        return $this->hasMany(BomTemplateItem::class, 'bom_template_id');
+    }
+}

app/Models/Design/BomTemplateItem.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Models\Design;
+
+use Illuminate\Database\Eloquent\Model;
+
+class BomTemplateItem extends Model
+{
+    protected $table = 'bom_template_items';
+
+    protected $fillable = [
+        'tenant_id','bom_template_id','ref_type','ref_id','qty','waste_rate','uom_id','notes','sort_order',
+    ];
+
+    protected $casts = [
+        'qty' => 'decimal:6',
+        'waste_rate' => 'decimal:6',
+    ];
+
+    public function template() {
+        return $this->belongsTo(BomTemplate::class, 'bom_template_id');
+    }
+}

app/Models/Design/DesignModel.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Models\Design;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class DesignModel extends Model
+{
+    use SoftDeletes;
+
+    protected $table = 'models';
+
+    protected $fillable = [
+        'tenant_id','code','name','category_id','lifecycle','description','is_active',
+    ];
+
+    protected $casts = [
+        'is_active' => 'boolean',
+    ];
+
+    // 관계: 모델은 여러 버전을 가짐
+    public function versions() {
+        return $this->hasMany(ModelVersion::class, 'model_id');
+    }
+}

app/Models/Design/ModelVersion.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace App\Models\Design;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class ModelVersion extends Model
+{
+    use SoftDeletes;
+
+    protected $table = 'model_versions';
+
+    protected $fillable = [
+        'tenant_id','model_id','version_no','status','effective_from','effective_to','notes','is_active',
+    ];
+
+    protected $casts = [
+        'is_active' => 'boolean',
+        'effective_from' => 'datetime',
+        'effective_to' => 'datetime',
+    ];
+
+    public function model() {
+        return $this->belongsTo(DesignModel::class, 'model_id');
+    }
+
+    public function bomTemplates() {
+        return $this->hasMany(BomTemplate::class, 'model_version_id');
+    }
+
+    public function scopeReleased($q) {
+        return $q->where('status', 'RELEASED');
+    }
+}