Add dynamic universe and subscription controls

docs/rqalpha-gap-roadmap.md

@@ -28,9 +28,9 @@ current alignment pass.
 
 ### Phase 3: Universe and subscription model
 
-- [ ] `update_universe`
-- [ ] `subscribe`
-- [ ] `unsubscribe`
+- [x] `update_universe`
+- [x] `subscribe`
+- [x] `unsubscribe`
 - [ ] tick-frequency subscription guards exposed at strategy API level
 
 ### Phase 4: Algo order parity
@@ -57,4 +57,4 @@ current alignment pass.
 
 ## Current Step
 
-Active implementation target: Phase 3, dynamic universe and subscription model.
+Active implementation target: Phase 4, algo-order styles.