init: add source code from src.zip

src/utils/memory/versions.ts

@@ -0,0 +1,8 @@
+import { findGitRoot } from '../git.js'
+
+// Note: This is used to check git repo status synchronously
+// Uses findGitRoot which walks the filesystem (no subprocess)
+// Prefer `dirIsInGitRepo()` for async checks
+export function projectIsInGitRepo(cwd: string): boolean {
+  return findGitRoot(cwd) !== null
+}