AgeniusDesk CE v0.4.1

Patch release: n8n-only by default.

The Agent Fleet view and Code Lab's Agent Builder mode now appear only when the optional agent extra (AGD_EXTRAS="...,langgraph") is installed, so a default install reads as a pure n8n control plane. AGD_AGENTS_ENABLED overrides the auto-detect: false hides the agent surface even with the extra present, true forces it on. The gate is UI-only (nav + Code Lab mode); it changes no dependencies, and GET /api/status now carries agents_enabled for the frontend.

This makes the v0.4.0 "n8n-first" positioning true of a tagged release. The v0.4.0 agent layer it sits on (LangGraph + PydanticAI fleet, live graph, run waterfall, human-in-the-loop, n8n-mcp + skills) is unchanged.

Full notes: CHANGELOG