Guard against duplicate tool header/output rendering when both tool.execute
and message.part.updated fire for the same tool, and prevent message counter
resets when message.updated fires multiple times for the same assistant message.
🤖 Generated with [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode) assistance
Replace the single-line "Thinking: <summary>" rendering with direct streaming
of reasoning tokens via writePaddedText. Removes maybePrintThinkingLine and
renderThinkingLine in favor of incremental output with dim styling.
🤖 Generated with assistance of [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)
Adds message.part.delta event handling for real-time streaming output,
reasoning/think block display with in-place updates, per-agent profile
colors, padded text output, and semantic tool headers with icons.
🤖 Generated with [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)
