transcript updates

cht/stream/manager.py

@@ -39,6 +39,16 @@ def list_sessions():
     return sessions
 
 
+def delete_sessions(session_ids):
+    """Delete session directories by ID."""
+    import shutil
+    for sid in session_ids:
+        path = SESSIONS_DIR / sid
+        if path.exists() and path.is_dir():
+            shutil.rmtree(path)
+            log.info("Deleted session: %s", sid)
+
+
 class StreamManager:
     def __init__(self, session_id=None):
         if session_id is None: