[FEATURE] VSCode extension: session titles truncated in Ctrl+Tab switcher despite available screen space

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

When using Ctrl+Tab to switch between Claude Code sessions, titles are truncated even when ample horizontal screen space is available. This makes it hard to distinguish sessions that share a common prefix.

Proposed Solution

Use available container width before truncating.
Allow manual session renaming.
Add a user-configurable title format (e.g. [Client] — Topic) so auto-generated titles follow a preferred convention.

Alternative Solutions

_No response_

Priority

Medium - Would be very helpful

Feature Category

Other

Use Case Example

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Additional Context

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