Include complexity data in swarm issue output (`il list --json`)

[acreeger]

Context

The VS Code extension's kanban board (epic board) needs to display complexity indicators on swarm issue cards. Currently, complexity data is only available in recap files (il recap --json), but the kanban board sources its data from il list --json via the swarmIssues array.

Request

When il list --json returns swarm issues, include the complexity data from each issue's recap file (if available) in the swarm issue object.

Current SwarmIssue shape:

{
  "number": "#123",
  "title": "Fix login bug",
  "url": "https://github.com/...",
  "state": "in_progress",
  "worktreePath": "/path/to/worktree"
}

Desired SwarmIssue shape:

{
  "number": "#123",
  "title": "Fix login bug",
  "url": "https://github.com/...",
  "state": "in_progress",
  "worktreePath": "/path/to/worktree",
  "complexity": { "level": "simple", "reason": "Single file change" }
}

The complexity field should be optional/nullable — only present when the issue has a recap file with complexity set.

Related

• iloom-ai/iloom-vscode#246 — VS Code extension issue to display complexity on kanban cards

[acreeger]

Closing as not planned — decided to fix each task's complexity as simple rather than sourcing it from CLI output.