refactor pi resource wiring by directory

pi/extensions/subagent/prompts/research.md

@@ -0,0 +1,28 @@
+---
+description: Run local scout and external librarian research in parallel, then synthesize grounded guidance
+---
+Use the `subagent` tool with `tasks` mode to run these in parallel for: $@
+
+- `scout`: inspect the current repository and identify the most relevant local files, entrypoints, constraints, and likely change surface
+- `librarian`: gather external references and coding prior art, using `exa_search` for docs/web research and `exa_code` for implementation examples when useful
+
+After both results return:
+
+1. Synthesize them into one grounded response.
+2. Clearly separate:
+   - local repository findings
+   - external references and docs
+   - recommended implementation patterns
+3. Prefer official docs and high-signal sources over generic summaries.
+4. Call out where external advice may not fit this repository's existing architecture.
+5. Do **not** implement changes unless the user explicitly asks.
+
+Return the final answer in this structure:
+
+## Goal
+## Local Findings
+## External References
+## Recommended Pattern
+## Risks / Caveats
+## Next Steps
+## Sources