refactor(lifecycle): move branch and PR ownership out of root

crates/tracedecay-application/src/lib.rs

@@ -82,6 +82,7 @@ pub mod native_integration;
 pub mod observability;
 pub mod observation;
 pub mod operation_stream;
+pub mod pr_tracking;
 pub mod primitives;
 pub mod project_open_authorization;
 pub mod semantic_runtime;