[FEATURE] Startup welcome screen regression: removed recent activity, changelog, and user greeting (v2.1.78 → v2.1.81)

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

The startup welcome screen was significantly simplified between v2.1.78 and v2.1.81. The old version was genuinely useful — the new one isn't.

Old behavior (v2.1.78):

• Personalized greeting ("Welcome back [name]!")
• Recent activity feed with conversation history
• "What's new" section with changelog highlights
• Account info (model, plan, org, workspace)

New behavior (v2.1.81):

• ASCII logo
• Model + plan
• Working directory

That's it.

Why this matters:
The recent activity feed was a fast way to resume context without running /resume. The changelog surface meant I actually saw updates. The greeting made the tool feel alive. All of that is gone.

Proposed Solution

Restore the rich startup screen, or at minimum make it opt-in via settings. Removing information density from a developer tool is a step backward.

Alternative Solutions

_No response_

Priority

Medium - Would be very helpful

Feature Category

CLI commands and flags

Use Case Example

_No response_

Additional Context

_No response_