refine presentation: remove motivational sentence, rename phases to kyu belts, add agent restriction

index.md

@@ -258,16 +258,16 @@ table {
 
 # Implementation Strategy
 
-**Phase 1 - Low Risk:**
+**Kyu 1 (yellow belt 🟡):**
 Communication tools, Browser, Search, Office suite 
 
-**Phase 2 - Productivity:**
+**Kyu 2 (orange belt 🟠):**
 Operating system, Cloud storage, Email communication
 
-**Phase 3 - Infrastructure (our goal today):**
+**Kyu 3 (green belt 🟢):**
 Cloud storage, Self-hosting, Complete sovereignty
 
-*For Phase 1 and 2 are hundreds of tutorials out there; I believe in you ❤️*
+
 
 ---