Gemini CLI 0.67.0 adds a `models` command and a `--list-models` flag

Gemini CLI 0.67.0 adds a models command and a --list-models flag for discovering which models are available. It also bridges the IDE companion into container sandboxes over exec stdio.

Among the fixes in the release notes:

• Tool execution no longer continues after a cancellation in non-interactive mode, and request cancellation now stops continuation streaming and the auto-nudge.
• Untrusted-flag checks are scoped to external output, and approved flags are remembered.
• IDE settings and GEMINI.md files are left out of the open-file context.
• Project spending-cap errors are treated as terminal quota errors.
• MCP server and tool metadata are included in ACP permission requests.
• Claude hook timeouts are converted from seconds to milliseconds when settings are migrated.