feat: add support for custom tools (#83)

Author: chenjiahan

package.json

@@ -45,9 +45,13 @@
     "@microsoft/api-extractor": "^7.55.1",
     "@rslib/core": "0.18.2",
     "@rstest/core": "0.6.8",
+    "@types/cross-spawn": "^6.0.6",
+    "@types/fs-extra": "^11.0.4",
     "@types/minimist": "^1.2.5",
     "@types/node": "24.10.1",
+    "cross-spawn": "^7.0.6",
     "deepmerge": "^4.3.1",
+    "fs-extra": "^11.3.2",
     "minimist": "^1.2.8",
     "picocolors": "^1.1.1",
     "rslog": "^1.3.2",