v0.23.4

[New] MCP: agents can patch epic descriptions and add several relations on create
[New] Board: remove an epic relation from the Board preview
[Fix] Automation: "Coder reset" can wait while epics are in chosen statuses, so it keeps coders other phases still need
[Impr] Dev Template: GPT-6 family models, a skill review prompt, and better bundled skills
[New] Skills: "Project skill review" suggests which skills to enable or disable, based on usage
[Perf] MCP: smaller responses use less agent context; epic lists return description previews by default
[Fix] Skills: agents no longer load disabled skills, and edits to any local skill file now sync