Fix [P] marker consistency: remove [P] from T016/T017 in Wave DAG

Checklist tasks T016/T017 are not marked [P], so the DAG should not
mark them [P] either. Keeps scheduling decisions consistent.

Author: Quratulain-bilal

templates/tasks-template.md

@@ -241,8 +241,8 @@ Wave 7:
   T028  [US3] Implement endpoint (depends on T027)
 
 Wave 8:
-  T016 [P] [US1] Validation (depends on T015)
-  T017 [P] [US1] Logging (depends on T015)
+  T016  [US1] Validation (depends on T015)
+  T017  [US1] Logging (depends on T015)
   T023  [US2] Integrate with US1 (depends on T022)
 ```