Feature Request: Add setting to disable session feedback prompt

Summary

Please add a setting to permanently disable the session feedback prompt:

● How is Claude doing this session? (optional)
  1: Bad    2: Fine   3: Good   0: Dismiss

Motivation

The prompt appears frequently and can be disruptive to workflow. While 0: Dismiss hides it for a single session, there is no way to permanently disable it.

Proposed Solution

Add enableSessionFeedback (boolean) to the settings.json schema:

{
  "enableSessionFeedback": false
}

Or support a CLI flag such as claude config set enableSessionFeedback false.

Current Behavior

• claude config set --global enableSessionFeedback false → error: unknown option '--global'
• Adding "enableSessionFeedback": false to ~/.claude/settings.json → validation error (unrecognized field)

Expected Behavior

Users can opt out of the session feedback prompt permanently via a settings entry.