v0.19.0

Added

• Added top-level parallel task support for per-task output, reads, and progress, including /parallel inline forwarding and async preservation.
• Added /agents launch toggles for forked context, background execution, and worktree-isolated parallel runs.
• Added a read-only detail view to /subagents-status for inspecting selected async runs, including recent events, output tails, and useful run paths.
• Added a packaged /parallel-review prompt template for launching fresh-context adversarial review subagents.

Fixed

• Parallel and chain child runs now detach cleanly when a child uses intercom, preventing incoming handoff messages from aborting the parent foreground run.