sync local pi changes

.pi/agent/extensions/tmux-subagent/prompts/scout-and-plan.md

@@ -0,0 +1,9 @@
+---
+description: Scout the codebase, then produce a plan using tmux-backed subagents
+---
+Use the `subagent` tool in chain mode:
+
+1. `scout` to inspect the codebase for: $@
+2. `planner` to turn `{previous}` into an implementation plan
+
+User request: $@