Publish harness and TUI open-source

initial sync from the monorepo

crates/codegen/xai-grok-shell/changelogs/0.2.45.md

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+# 0.2.45
+
+## Features
+
+- **Mermaid diagrams** now render to images when you click Open in a code block (on by default).
+
+## Bug Fixes
+
+- **Fixed** rare conversation corruption when skills changed while a tool call was still running.
+- **Fixed** `grok --resume` failing on empty image-only session folders left by cross-directory pastes.
+- **Fixed** pasted images and relative paths using the wrong directory after resuming a session from another folder.
+- **Welcome screen logo** no longer renders as invalid characters on legacy Windows command prompts and PowerShell.
+- **Fixed** "unknown session id" errors that occurred after the leader process crashed or was killed.
+