fix(deepagents): runtime agnostic sandbox operations (#197)

* fix(modal): add token to run in CI

* improve fs operations

* format

* changesets

Author: christian-bromann

.changeset/honest-ravens-follow.md

@@ -0,0 +1,6 @@
+---
+"@langchain/modal": patch
+"deepagents": patch
+---
+
+fix(deepagents): runtime agnostic sandbox operations

.github/workflows/ci.yml

@@ -164,3 +164,5 @@ jobs:
           ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
           DENO_DEPLOY_TOKEN: ${{ secrets.DENO_DEPLOY_TOKEN }}
           DAYTONA_API_KEY: ${{ secrets.DAYTONA_API_KEY }}
+          MODAL_TOKEN_ID: ${{ secrets.MODAL_TOKEN_ID }}
+          MODAL_TOKEN_SECRET: ${{ secrets.MODAL_TOKEN_SECRET }}