chore(license): BUSL-1.1 라이선스 도입 + package.json 메타데이터 보강

상업 서비스 계획 + 케이크 가게 연동 비즈니스 모델 보호 차원에서
Business Source License 1.1 채택. 비상업/학습 사용은 자유롭게 허용하고,
경쟁 서비스 운영 시 별도 라이선스 협의가 필요하며, Change Date(2030-05-20)
이후 Apache License 2.0으로 자동 전환된다.

- LICENSE: SPDX 정본 + 상단 Parameters 블록 (Licensor/Licensed Work/
  Additional Use Grant/Change Date/Change License) + SPDX-License-Identifier
  헤더로 의존성 스캐너 친화
- package.json: license UNLICENSED → SEE LICENSE IN ./LICENSE,
  description/author 보강

참고: GitHub UI는 BUSL을 "Other"로 표시함 (HashiCorp/CockroachDB/Sentry
동일). source-available 라이선스의 일반적 동작이며 README 뱃지로 보완.

Author: chanwoo7

LICENSE

@@ -0,0 +1,84 @@
+SPDX-License-Identifier: BUSL-1.1
+
+Business Source License 1.1
+
+Parameters
+
+Licensor:             CaQuick
+Licensed Work:        CaQuick Backend
+                      The Licensed Work is © 2026 CaQuick.
+Additional Use Grant: None
+Change Date:          2030-05-20
+Change License:       Apache License, Version 2.0
+
+-------------------------------------------------------------------------------
+
+License text copyright © 2017 MariaDB Corporation Ab, All Rights Reserved.
+"Business Source License" is a trademark of MariaDB Corporation Ab.
+
+Terms
+
+The Licensor hereby grants you the right to copy, modify, create derivative
+works, redistribute, and make non-production use of the Licensed Work. The
+Licensor may make an Additional Use Grant, above, permitting limited
+production use.
+
+Effective on the Change Date, or the fourth anniversary of the first publicly
+available distribution of a specific version of the Licensed Work under this
+License, whichever comes first, the Licensor hereby grants you rights under
+the terms of the Change License, and the rights granted in the paragraph
+above terminate.
+
+If your use of the Licensed Work does not comply with the requirements
+currently in effect as described in this License, you must purchase a
+commercial license from the Licensor, its affiliated entities, or authorized
+resellers, or you must refrain from using the Licensed Work.
+
+All copies of the original and modified Licensed Work, and derivative works
+of the Licensed Work, are subject to this License. This License applies
+separately for each version of the Licensed Work and the Change Date may vary
+for each version of the Licensed Work released by Licensor.
+
+You must conspicuously display this License on each original or modified copy
+of the Licensed Work. If you receive the Licensed Work in original or
+modified form from a third party, the terms and conditions set forth in this
+License apply to your use of that work.
+
+Any use of the Licensed Work in violation of this License will automatically
+terminate your rights under this License for the current and all other
+versions of the Licensed Work.
+
+This License does not grant you any right in any trademark or logo of
+Licensor or its affiliates (provided that you may use a trademark or logo of
+Licensor as expressly required by this License).
+
+TO THE EXTENT PERMITTED BY APPLICABLE LAW, THE LICENSED WORK IS PROVIDED ON
+AN “AS IS” BASIS. LICENSOR HEREBY DISCLAIMS ALL WARRANTIES AND CONDITIONS,
+EXPRESS OR IMPLIED, INCLUDING (WITHOUT LIMITATION) WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, AND
+TITLE.
+
+MariaDB hereby grants you permission to use this License’s text to license
+your works, and to refer to it using the trademark “Business Source License”,
+as long as you comply with the Covenants of Licensor below.
+
+Covenants of Licensor
+
+In consideration of the right to use this License’s text and the “Business
+Source License” name and trademark, Licensor covenants to MariaDB, and to all
+other recipients of the licensed work to be provided by Licensor:
+
+1. To specify as the Change License the GPL Version 2.0 or any later version,
+   or a license that is compatible with GPL Version 2.0 or a later version,
+   where “compatible” means that software provided under the Change License can
+   be included in a program with software provided under GPL Version 2.0 or a
+   later version. Licensor may specify additional Change Licenses without
+   limitation.
+
+2. To either: (a) specify an additional grant of rights to use that does not
+   impose any additional restriction on the right granted in this License, as
+   the Additional Use Grant; or (b) insert the text “None”.
+
+3. To specify a Change Date.
+
+4. Not to modify this License in any other way.

package.json

@@ -1,10 +1,10 @@
 {
   "name": "caquick-be",
   "version": "0.0.1",
-  "description": "",
-  "author": "",
+  "description": "케이퀵(CaQuick) 백엔드 - 시각 기반 올인원 맞춤 케이크 주문 플랫폼",
+  "author": "chanwoo7",
   "private": true,
-  "license": "UNLICENSED",
+  "license": "SEE LICENSE IN ./LICENSE",
   "scripts": {
     "build": "nest build",
     "format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\"",