0.166.0

Version 0.166.0 adds keyboard-driven transcript selection with word, line, and page motions plus integrated search, renders Markdown in async questions and transcript replies, and adds GPT-6.1 Terra to the bundled, Vertex AI, and Amazon Bedrock model catalogs. It also introduces `codex queue --resume`, clearer safety-block explanations with safer follow-up prompts, and `codex doctor --network-only` for focused network diagnostics. Bug fixes preserve acknowledged permissions on resume/fork, restore spawned descendant threads when unarchiving a parent, and improve TUI reconnection recovery.