Tau 0.2.1

New

• Persist thinking/reasoning blocks and provider replay metadata across Tau's Pi-compatible event streams, session storage, exports, and TUI rendering.
• Bundle Tau self-knowledge docs, examples, and skills so installed copies can answer Tau-specific questions without a source checkout.

Changed

• Discover Codex context and compaction limits at runtime from the authenticated model catalog, with conservative static fallbacks and a visible limit source in session diagnostics.
• Remove the redundant animated tool-row spinner while keeping static status-colored markers and elapsed-time feedback.

Fixed

• Fix provider-error recovery so a failed or aborted assistant turn no longer poisons the next prompt, while keeping the error visible in the TUI and session history.
• Fix tool-call labels in the session tree for assistant turns without visible text.
• Fix light theme code block background in fenced code blocks.
• Coerce the startup thinking level to a mode the remembered default model supports, preventing crashes on incompatible saved preferences.
• Fix tests launching the real Anthropic OAuth browser during test runs.