fix: replace private kuaishou npm registry URLs with public npmjs registry

5 entries in package-lock.json pointed to npm.corp.kuaishou.com (an
internal registry unreachable from HF Spaces), causing 'npm ci' to fail
with ENOTFOUND during the Docker build. Replaced all with the public
registry.npmjs.org. Integrity hashes verified unchanged.

Affected: @playwright /test, playwright, playwright-core, graphology-types,
fsevents (playwright nested)

client/src/package-lock.json

@@ -493,7 +493,7 @@
     },
     "node_modules/@playwright/test": {
       "version": "1.61.0",
-      "resolved": "https://npm.corp.kuaishou.com/@playwright/test/-/test-1.61.0.tgz",
+      "resolved": "https://registry.npmjs.org/@playwright/test/-/test-1.61.0.tgz",
       "integrity": "sha512-cKA5B6lpFEMyMGjxF54QihfYpB4FkEGH+qZhtArDEG+wezQAJY8Pq6C7T1SjWz+FFzt3TbyoXBQYk/0292TdJA==",
       "dev": true,
       "license": "Apache-2.0",
@@ -3219,7 +3219,7 @@
     },
     "node_modules/graphology-types": {
       "version": "0.24.8",
-      "resolved": "https://npm.corp.kuaishou.com/graphology-types/-/graphology-types-0.24.8.tgz",
+      "resolved": "https://registry.npmjs.org/graphology-types/-/graphology-types-0.24.8.tgz",
       "integrity": "sha512-hDRKYXa8TsoZHjgEaysSRyPdT6uB78Ci8WnjgbStlQysz7xR52PInxNsmnB7IBOM1BhikxkNyCVEFgmPKnpx3Q==",
       "license": "MIT"
     },
@@ -4388,7 +4388,7 @@
     },
     "node_modules/playwright": {
       "version": "1.61.0",
-      "resolved": "https://npm.corp.kuaishou.com/playwright/-/playwright-1.61.0.tgz",
+      "resolved": "https://registry.npmjs.org/playwright/-/playwright-1.61.0.tgz",
       "integrity": "sha512-Z+7BeeqQPRRzklHsVFP4KTGIyMxKUmfeRA4WisM6G3/XW6nwGeX6fX9qYaDa+CiUqpOkb2f6X3nar05R3kSuJQ==",
       "dev": true,
       "license": "Apache-2.0",
@@ -4407,7 +4407,7 @@
     },
     "node_modules/playwright-core": {
       "version": "1.61.0",
-      "resolved": "https://npm.corp.kuaishou.com/playwright-core/-/playwright-core-1.61.0.tgz",
+      "resolved": "https://registry.npmjs.org/playwright-core/-/playwright-core-1.61.0.tgz",
       "integrity": "sha512-caX7TrY3Ml6egyDX0WUcTHDxodl/b51y5wJOdCEA36QviK/s2g081hvmGs8eaE3DWb6NYZQ6BjO/QkNRPenoPA==",
       "dev": true,
       "license": "Apache-2.0",
@@ -4420,7 +4420,7 @@
     },
     "node_modules/playwright/node_modules/fsevents": {
       "version": "2.3.2",
-      "resolved": "https://npm.corp.kuaishou.com/fsevents/-/fsevents-2.3.2.tgz",
+      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.2.tgz",
       "integrity": "sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==",
       "dev": true,
       "hasInstallScript": true,