Publish harness and TUI open-source

initial sync from the monorepo

crates/codegen/xai-grok-shell/changelogs/0.2.81.md

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+# 0.2.81 — 2026-07-01
+
+## Features
+
+- **Chat sessions** no longer send workspace binding hints that belong to the backend.
+- **New stream transforms** let hosts hide, unwrap, or rewrite tool calls for display without affecting agent transcripts.
+- **cancel()** now accepts a timeout so a stuck turn cannot hang the session forever.
+- **Run tool blocks** now show the model's description as the main title when provided.
+- **Hex color codes** in prose now render as colored dots on truecolor terminals.
+- **New setting** "Show thinking blocks" controls whether agent reasoning is visible in the scrollback.
+- **Spinners** now show the description or short command of the task being waited on when available.
+
+## Bug Fixes
+
+- **Fixed sessions** that remained stuck on the thinking indicator after the model finished responding.
+- **Mermaid diagrams** now correctly display angle brackets and symbols instead of literal HTML entities in labels.
+- **Recap requests** no longer trigger context-length 400 errors on long conversations.
+
+## Performance
+
+- **Grep searches** now time out after 20 seconds by default (60s on WSL) instead of always waiting 60s.