Instead of relying on display_name (which for old instances is just the
workspace name), fetch the full session info and build the title from
individual fields:
- Base: '{workspace_name} {tool_type_name}'
- With multiple terminal sessions: '{workspace_name} {tool_type_name} {session_name}'
- Fallback: 'Instance {id}' if session lookup fails
This gives meaningful titles like 'MyWorkspace code-server Session 1'
instead of just 'MyWorkspace — Terminal'.
Quality gates: tsc --noEmit pass, npm run build pass, 82/82 tests pass
Developer
8a7bec8df2