Add 5 pi extensions: pi-subagents, pi-crew, rpiv-pi, pi-interactive-shell, pi-intercom

extensions/pi-crew/teams/implementation.team.md

@@ -0,0 +1,18 @@
+---
+name: implementation
+description: Full implementation team with parallel specialists, critique, execution, review, and verification
+defaultWorkflow: implementation
+workspaceMode: single
+maxConcurrency: 3
+---
+
+- explorer: agent=explorer map the codebase
+- analyst: agent=analyst clarify requirements and constraints
+- planner: agent=planner create execution plan
+- critic: agent=critic challenge and synthesize specialist findings
+- executor: agent=executor implement the plan
+- reviewer: agent=reviewer review the implementation
+- security-reviewer: agent=security-reviewer review security and trust boundaries
+- test-engineer: agent=test-engineer design and run verification
+- verifier: agent=verifier verify done
+- writer: agent=writer summarize documentation or release notes when needed