Merge branch 'tier2/phase2_4_5_call_site_completion_20260621' into tier2/code_path_audit_20260607

src/log_registry.py

@@ -193,6 +193,36 @@ class LogRegistry:
    self.data[session_id]['whitelisted'] = whitelisted
   self.save_registry() # Save after update
 
+ def set_session_start_time(self, session_id: str, start_time: datetime | str) -> None:
+  """
+  Updates the start_time of an existing session.
+
+  Used by tests and maintenance tools to backdate a session for pruning
+  verification. Creates a new Session with the updated start_time while
+  preserving all other fields (Session is frozen).
+
+  Args:
+   session_id (str): Unique identifier for the session.
+   start_time (datetime|str): The new start timestamp.
+  [C: tests/test_logging_e2e.py:test_logging_e2e]
+  """
+  if session_id not in self.data:
+   print(f"Error: Session ID '{session_id}' not found for start_time update.")
+   return
+  if isinstance(start_time, datetime):
+   start_time_str: str = start_time.isoformat()
+  else:
+   start_time_str = start_time
+  existing = self.data[session_id]
+  self.data[session_id] = Session(
+   session_id=existing.session_id,
+   path=existing.path,
+   start_time=start_time_str,
+   whitelisted=existing.whitelisted,
+   metadata=existing.metadata,
+  )
+  self.save_registry()
+
  def is_session_whitelisted(self, session_id: str) -> bool:
   """
   Checks if a specific session is marked as whitelisted.