feat(backend): KOPIS 공연 동기화 추가

대구 공연은 관광공사에 거의 없고(90일 1건) KOPIS 에는 153건이 있다.
place:sync -- kopis 로 대구·경북 공연을 매일 받는다.

- 목록 → 새·바뀐(afterdate)·7일 지난 공연만 상세 → 새 공연장만 시설 상세 → 시설 좌표를 공연에 복사
- 시설 좌표가 주소의 시·도 영역 밖이면 비운다(대구 중구 주소에 경주 좌표인 시설이 있었다)
- 포스터 http 주소를 https://kopis.or.kr 로 바꿔 저장, 0.6초 간격 호출(초당 10회 차단)
- 공공데이터 클라이언트에 키 파라미터 이름·호출 간격·경로를 나눠 받게 함
- XML 응답 해석에 fast-xml-parser 추가. 컨테이너 npm 11.20 이 만든 잠금 파일은
  선택 peer·@emnapi 항목을 지워 CI(npm 10)·호스트의 npm ci 가 실패해서, 새 패키지 항목만 기존 잠금에 더했다

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

backend/package-lock.json

@@ -22,6 +22,7 @@
         "cache-manager": "^6.4.0",
         "class-transformer": "^0.5.1",
         "class-validator": "^0.14.4",
+        "fast-xml-parser": "^5.11.2",
         "helmet": "^8.1.0",
         "nest-winston": "^1.10.0",
         "pg": "^8.20.0",
@@ -3343,6 +3344,18 @@
         "url": "https://paulmillr.com/funding/"
       }
     },
+    "node_modules/@nodable/entities": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/@nodable/entities/-/entities-3.1.0.tgz",
+      "integrity": "sha512-LsS/DjHr+uDM647Gru/cA8+J3a3HfhttwCKLyuoyN7yXTFCxKBtSgMQBvrW9yNPa2/zDRUNuGPaH5QUFoa4arQ==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/nodable"
+        }
+      ],
+      "license": "MIT"
+    },
     "node_modules/@paralleldrive/cuid2": {
       "version": "2.3.1",
       "resolved": "https://registry.npmjs.org/@paralleldrive/cuid2/-/cuid2-2.3.1.tgz",
@@ -5340,6 +5353,18 @@
         "url": "https://github.com/sponsors/jonschlinkert"
       }
     },
+    "node_modules/anynum": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/anynum/-/anynum-1.0.1.tgz",
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+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/NaturalIntelligence"
+        }
+      ],
+      "license": "MIT"
+    },
     "node_modules/app-root-path": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/app-root-path/-/app-root-path-3.1.0.tgz",
@@ -7415,6 +7440,45 @@
       ],
       "license": "BSD-3-Clause"
     },
+    "node_modules/fast-xml-builder": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/fast-xml-builder/-/fast-xml-builder-1.3.1.tgz",
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+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/NaturalIntelligence"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "path-expression-matcher": "^1.6.2",
+        "xml-naming": "^0.3.0"
+      }
+    },
+    "node_modules/fast-xml-parser": {
+      "version": "5.11.2",
+      "resolved": "https://registry.npmjs.org/fast-xml-parser/-/fast-xml-parser-5.11.2.tgz",
+      "integrity": "sha512-R9iDuNrQYeQut46cn2r2wHKn4HYzVDvDm5J1wW+koZewykv0yuO2HChTYeZtrULyHIDM9cj9TUXloCsueCQUog==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/NaturalIntelligence"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "@nodable/entities": "^3.0.1",
+        "fast-xml-builder": "^1.2.0",
+        "is-unsafe": "^2.0.0",
+        "path-expression-matcher": "^1.6.2",
+        "strnum": "^2.4.2",
+        "xml-naming": "^0.3.0"
+      },
+      "bin": {
+        "fxparser": "src/cli/cli.js"
+      }
+    },
     "node_modules/fb-watchman": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/fb-watchman/-/fb-watchman-2.0.2.tgz",
@@ -8536,6 +8600,18 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/is-unsafe": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/is-unsafe/-/is-unsafe-2.0.3.tgz",
+      "integrity": "sha512-ZBllczCCO267vgdFb6Tq3pv+LhHaCiGMdr+ZsuL+OopruAg7S+3ZDs1vD0RPC0uSrkjzbraxaGjtX1YBxjPeFQ==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/NaturalIntelligence"
+        }
+      ],
+      "license": "MIT"
+    },
     "node_modules/isarray": {
       "version": "2.0.5",
       "resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.5.tgz",
@@ -10535,6 +10611,21 @@
         "node": ">=8"
       }
     },
+    "node_modules/path-expression-matcher": {
+      "version": "1.6.2",
+      "resolved": "https://registry.npmjs.org/path-expression-matcher/-/path-expression-matcher-1.6.2.tgz",
+      "integrity": "sha512-enSlaiat05iasnzmgNxRj8reFdj3puY2QpNgP1aPIaVfT6nn9ICuPoFlKHk8EN22HcwewshO+mN2DGbkCEOtqQ==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/NaturalIntelligence"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": ">=14.0.0"
+      }
+    },
     "node_modules/path-is-absolute": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
@@ -11829,6 +11920,21 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/strnum": {
+      "version": "2.5.1",
+      "resolved": "https://registry.npmjs.org/strnum/-/strnum-2.5.1.tgz",
+      "integrity": "sha512-UM4nTLWzQiDBseVxUGxN0wJzIk0UU89Qi7pKXz9qISo+lhviJikTuikBsK/oFRlpvYHvSdz0TVoLyQ+sEpYwxA==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/NaturalIntelligence"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "anynum": "^1.0.1"
+      }
+    },
     "node_modules/strtok3": {
       "version": "10.3.5",
       "resolved": "https://registry.npmjs.org/strtok3/-/strtok3-10.3.5.tgz",
@@ -13491,6 +13597,21 @@
         "node": "^14.17.0 || ^16.13.0 || >=18.0.0"
       }
     },
+    "node_modules/xml-naming": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/xml-naming/-/xml-naming-0.3.0.tgz",
+      "integrity": "sha512-ghig2TBE/H11aOVgmahA3MhimvkBr6JIYknH/Dhdk10nXwdbIqBJsbfMxpvFPG8bAw77gN29aQWvKpmVoPlvPQ==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/NaturalIntelligence"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": ">=16.0.0"
+      }
+    },
     "node_modules/xtend": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",