feat: NEO session log modal (#2793)

Introduce NEO session container log modal.

![image.png](https://graphite-user-uploaded-assets-prod.s3.amazonaws.com/XqC2uNFuj0wg8I60sMUh/e7cdc16a-04ea-443c-9e38-52987050158b.png)

This PR adds a new container log viewer feature that allows users to:
- View real-time container logs for compute sessions
- Switch between different kernel roles in multi-container sessions
- Download log contents
- Search through logs with case-insensitive text search
- Auto-scroll to follow new log entries
- Copy session IDs directly from the log viewer

The log viewer uses the `@melloware/react-logviewer` component which provides an efficient virtualized view for handling large log files.

react/package.json

@@ -9,6 +9,7 @@
     "@ant-design/icons": "^5.4.0",
     "@cloudscape-design/board-components": "3.0.60",
     "@codemirror/language": "^6.10.2",
+    "@melloware/react-logviewer": "^5.2.4",
     "@storybook/test": "^8.2.8",
     "@tanstack/react-query": "^5.51.15",
     "@testing-library/jest-dom": "^6.4.8",