[Feature Request] Support ANSI color codes in model response

Feature Request

Allow Claude's responses to include ANSI escape codes that render as colored text in the terminal, or provide a pattern-based coloring mechanism for custom status tags.

Use Case

I use status tags at the end of responses to indicate task state (and trigger notifications):

• [✅ CLAUDE - DONE - SUCCESS] - should be green
• [❌ CLAUDE - DONE - FAILED] - should be red
• [⏳ CLAUDE - INPUT NEEDED] - should be yellow

Currently, all text renders in the same color regardless of semantic meaning. Gemini CLI demonstrates this is technically feasible in terminal-based AI tools.

Proposed Solutions (any of these would work):

1. Pass through ANSI escape codes from model output instead of sanitizing them
2. Support a markdown color extension (e.g., {green}text{/green})
3. Allow users to configure pattern-based coloring in settings (regex → color mapping)

Current Workaround

Using emojis + backticks for inline code styling, but all tags get the same cyan color.

Environment Info

• Platform: darwin
• Terminal: iTerm.app
• Version: 2.0.76