Publish harness and TUI open-source

initial sync from the monorepo

crates/codegen/xai-grok-shell/changelogs/0.2.37.md

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+# 0.2.37
+
+## Features
+
+- **MCP tool result queries** now list only command-line tools actually present on your system.
+- **`grok update`** now restarts any older running leader so all clients get the new binary.
+- **Long-running bash commands** that hit the timeout are now moved to the background by default instead of killed.
+
+## Bug Fixes
+
+- **Subagents** now correctly receive web_search and x_search tools from the parent session.
+