feat(API): 공정 options JSON 컬럼 마이그레이션

- needs_work_log 개별 컬럼 → options JSON 구조로 전환
- StoreProcessRequest, UpdateProcessRequest 유효성 규칙 갱신
- Process 모델 $fillable, $casts 갱신

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/Http/Requests/V1/Process/StoreProcessRequest.php

@@ -20,8 +20,10 @@ public function rules(): array
             'department' => ['nullable', 'string', 'max:100'],
             'work_log_template' => ['nullable', 'string', 'max:100'],
             'document_template_id' => ['nullable', 'integer', 'exists:document_templates,id'],
-            'needs_work_log' => ['nullable', 'boolean'],
             'work_log_template_id' => ['nullable', 'integer', 'exists:document_templates,id'],
+            'options' => ['nullable', 'array'],
+            'options.needs_inspection' => ['nullable', 'boolean'],
+            'options.needs_work_log' => ['nullable', 'boolean'],
             'required_workers' => ['nullable', 'integer', 'min:1'],
             'equipment_info' => ['nullable', 'string', 'max:255'],
             'work_steps' => ['nullable'],
@@ -52,8 +54,10 @@ public function attributes(): array
             'department' => '담당부서',
             'work_log_template' => '작업일지 양식',
             'document_template_id' => '중간검사 양식',
-            'needs_work_log' => '작업일지 여부',
             'work_log_template_id' => '작업일지 양식 ID',
+            'options' => '공정 설정',
+            'options.needs_inspection' => '중간검사 여부',
+            'options.needs_work_log' => '작업일지 여부',
             'required_workers' => '필요인원',
             'equipment_info' => '설비정보',
             'work_steps' => '작업단계',