Node REPL broken: sandboxPolicy missing in MCP request meta (version mismatch)

Bug Description

Node REPL MCP server rejects all js calls with error:
Mcp error: -32602: js: codex/sandbox-state-meta: missing field sandboxPolicy

Environment

• Codex App: 26.616.5445.0 (Windows Store)
• Codex CLI: 26.616.41845
• Node REPL runtime: a89897d3d9baa117
• OS: Windows 10 x64
• Node: v24.14.0

Root Cause

The node_repl.exe binary requires sandboxPolicy field in MCP request _meta.codex/sandbox-state-meta, but Codex CLI (26.616.41845) does not inject this field. This is a version mismatch between the App and CLI/runtime.

Attempted Fixes (all failed)

1. Deleted and re-downloaded cua_node runtime (downloaded same broken version)
2. Replaced entire runtime with App's bundled version (26.616.5445)
3. Fixed @oai/sky package.json exports ("./dist/": "./dist/")
4. Verified module imports work standalone, but MCP transport rejects before JS runs

Impact

• Computer Use completely unusable
• In-app Browser unusable
• Chrome extension unusable
• All Node REPL-dependent features broken

Workaround

WScript.Shell SendKeys works for basic Windows automation but lacks Computer Use capabilities.