tune devcontainer

Author: pelikhan

packages/cli/.devcontainer/devcontainer.json

@@ -6,6 +6,7 @@
                 "genaiscript.genaiscript-vscode",
                 "github.copilot-chat",
                 "github.vscode-pull-request-github",
+                "github.vscode-github-actions",
                 "esbenp.prettier-vscode",
                 "ms-python.python"
             ]
@@ -20,5 +21,7 @@
         "ghcr.io/devcontainers/features/docker-in-docker:2": {},
         "ghcr.io/devcontainers-extra/features/ffmpeg-apt-get:1.0.16": {},
         "ghcr.io/ghcr.io/devcontainers/features/github-cli:1.0.13": {}
-    }
+    },
+    "postStartCommand": "npm install -g genaiscript",
+    "runArgs": ["--env-file", ".env.genaiscript"]
 }