[Feature Request] Add custom session naming/labeling for multi-terminal workflows

Feature Request: Named Sessions / Session Labels

When working with multiple Claude Code sessions simultaneously (e.g., 7+ terminals for different responsibilities), it's difficult to distinguish between them.

Proposed feature: Allow users to name/label their Claude Code sessions with custom names like:

• /name "Agent System"
• /name "Frontend UI"
• /name "Bug fixer"
• /name "Documentation"

The name would display in the Claude Code status bar or header, making it easy to identify which session handles what responsibility when switching between terminals.

Use case: Power users often run multiple Claude Code instances for different parts of a codebase (backend, frontend, database, specific features). Custom session names would greatly improve workflow organization.