feat: remove hardcoding from installer for agents, improve expansion pack installation to its own locations, common files moved to common folder

zoo/.bmad-core/agent-teams/team-no-ui.yml

@@ -0,0 +1,13 @@
+bundle:
+  name: Team No UI
+  icon: 🔧
+  description: Team with no UX or UI Planning.
+agents:
+  - bmad-orchestrator
+  - analyst
+  - pm
+  - architect
+  - po
+workflows:
+  - greenfield-service
+  - brownfield-service