[FEATURE] btw or chat feature for planning mode

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

Often I have questions about a plan that I am otherwise happy with but would like to understand more about. I need to either accept or reject - cant just ask questions about it.

Proposed Solution

chat about this option when plan is complete - just like when it requests more info or clarification

Alternative Solutions

_No response_

Priority

Low - Nice to have

Feature Category

Interactive mode (TUI)

Use Case Example

1. I get it to make a big plan
2. I have some questions
3. instead of rejecting, I can just ask my questions and then approve

Additional Context

_No response_