feat: [pmis] pmis_workers 테이블 마이그레이션 추가

- 건설PMIS 현장 작업자 전용 프로필 테이블
- tenant_id + user_id 유니크 제약 포함

database/migrations/2026_03_12_120000_create_pmis_workers_table.php

@@ -0,0 +1,38 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::create('pmis_workers', function (Blueprint $table) {
+            $table->id();
+            $table->unsignedBigInteger('tenant_id')->default(1)->index();
+            $table->unsignedBigInteger('user_id')->nullable()->index()->comment('SAM users 테이블 FK (연결된 계정)');
+            $table->string('name', 50);
+            $table->string('login_id', 50)->nullable()->comment('PMIS 로그인 아이디');
+            $table->string('phone', 20)->nullable();
+            $table->string('email', 255)->nullable();
+            $table->string('department', 100)->nullable()->comment('소속 부서/현장소장 등');
+            $table->string('position', 50)->nullable()->comment('직책');
+            $table->string('role_type', 50)->nullable()->comment('권한 유형: 협력업체사용자, 원청관리자 등');
+            $table->string('gender', 5)->nullable();
+            $table->string('company', 100)->nullable()->comment('소속 업체명');
+            $table->string('profile_photo_path', 500)->nullable();
+            $table->json('options')->nullable();
+            $table->timestamp('last_login_at')->nullable();
+            $table->timestamps();
+            $table->softDeletes();
+
+            $table->unique(['tenant_id', 'user_id'], 'pmis_workers_tenant_user_unique');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('pmis_workers');
+    }
+};