List Agents

List all AI Agents for the workspace + non-customized templates.

Spec §4: merges workspace_id=:ws rows with non-deprecated, non-customized system templates (workspace_id=0). Templates that the workspace has forked (based_on_template_id links) are excluded so the fork supersedes the template visually. Slug-disambiguation (§3.1 polish): if a workspace row and a template row share a slug in the same response, the template's display_name gets ' (template)' appended.

include_system (default False): when False, hide system-provided agents so the operator sees only the agents THEY have built. System agents are either (a) global templates (workspace_id=0) or (b) workspace rows whose based_on_template_id points at a template they haven't yet meaningfully customized. The orchestrator (slug='router') is ALWAYS returned regardless of this flag so it can be pinned as the operator's primary AI entry point.