feat(ql3): establish 3.0 incubation baseline

packages/ql3-local-command-file/src/index.ts

@@ -0,0 +1,7 @@
+export {
+  MAX_PRIVATE_LOCAL_JSON_FILE_BYTES,
+  PrivateLocalCommandFileError,
+  readPrivateLocalCommandFile,
+  readPrivateLocalJsonFile,
+  type ReadPrivateLocalJsonFileOptions,
+} from './protocol/privateLocalCommandFile';