feat: (gem-team) PRD/ Steer Support (#868)

* feat: Prd/ steer support

- Add supprot for PRD
- Vscode steer/ queue support
- Consistent artifacts
- Improved parallel running; for researchers too

* chore: improve prd update support

* chore: Make reviewer use prd for compaince

* chore: imrpvoe websearch in researcher

* fix(gem-team): revert gem-team plugin version from 1.5.0 to 1.2.0

.github/plugin/marketplace.json

@@ -98,7 +98,7 @@
       "name": "gem-team",
       "source": "gem-team",
       "description": "A modular multi-agent team for complex project execution with DAG-based planning, parallel execution, TDD verification, and automated testing.",
-      "version": "1.1.0"
+      "version": "1.2.0"
     },
     {
       "name": "go-mcp-development",