chore: include pre-built dist for github install

dist/tools/ast-grep/index.d.ts

@@ -0,0 +1,5 @@
+export { createAstGrepTools } from "./tools";
+export { ensureAstGrepBinary, getCachedBinaryPath, getCacheDir } from "./downloader";
+export { getAstGrepPath, isCliAvailable, ensureCliAvailable, startBackgroundInit } from "./cli";
+export { checkEnvironment, formatEnvironmentCheck } from "./constants";
+export type { EnvironmentCheckResult } from "./constants";