fix: [etax] 공급받는자 검색 시 거래처 전체 정보 자동 입력

- API 응답에 대표자, 주소, 업태, 종목 필드 추가
- 거래처 선택 시 모든 필드 자동 매핑 (대표자, 주소, 업태, 종목)
- 검색 결과 목록에 대표자, 주소 정보 표시

app/Http/Controllers/Barobill/BarobillController.php

@@ -163,7 +163,7 @@ public function searchTradingPartners(Request $request): JsonResponse
 
         $partners = $query->orderBy('name')
             ->limit(50)
-            ->get(['id', 'name', 'biz_no', 'contact', 'email', 'manager', 'manager_phone']);
+            ->get(['id', 'name', 'biz_no', 'ceo', 'address', 'type', 'category', 'contact', 'email', 'manager', 'manager_phone']);
 
         return response()->json($partners);
     }

resources/views/barobill/etax/index.blade.php

@@ -281,6 +281,10 @@
                 ...prev,
                 recipientBizno: formatBizNoDisplay(partner.biz_no || ''),
                 recipientName: partner.name || '',
+                recipientCeo: partner.ceo || '',
+                recipientAddr: partner.address || '',
+                recipientBizType: partner.type || '',
+                recipientBizClass: partner.category || '',
                 recipientContact: partner.manager || '',
                 recipientContactPhone: partner.manager_phone || partner.contact || '',
                 recipientEmail: partner.email || '',
@@ -718,11 +722,13 @@ className={`flex items-center gap-3 px-5 py-3 cursor-pointer border-b border-gra
                                         <div className="flex items-center gap-2">
                                             <span className="text-sm font-semibold text-gray-800 truncate">{p.name}</span>
                                             <span className="text-xs text-gray-400 flex-shrink-0">{formatBizNoDisplay(p.biz_no)}</span>
+                                            {p.ceo && <span className="text-xs text-gray-500 flex-shrink-0">({p.ceo})</span>}
                                         </div>
                                         <div className="flex items-center gap-3 mt-0.5">
                                             {p.manager && <span className="text-xs text-gray-500">{p.manager}</span>}
                                             {p.email && <span className="text-xs text-gray-400">{p.email}</span>}
                                         </div>
+                                        {p.address && <div className="text-xs text-gray-400 mt-0.5 truncate">{p.address}</div>}
                                     </div>
                                     {i === activeIndex && (
                                         <kbd className="flex-shrink-0 text-[10px] text-blue-500 bg-blue-50 border border-blue-200 rounded px-1.5 py-0.5 font-mono">Enter ↵</kbd>