fix(musicseerr): implement thread-safe jobs saving with a write lock and unique temp files

apps/musicseerr/main.py

@@ -19,15 +19,19 @@ import json
 
 JOBS_FILE = "/remote-music/.musicseerr_jobs.json"
 
+from tasks import JOBS_WRITE_LOCK
+
 def save_jobs_db(jobs_dict):
+    with JOBS_WRITE_LOCK:
         try:
-        temp_file = JOBS_FILE + ".tmp"
+            temp_file = f"{JOBS_FILE}.{uuid.uuid4()}.tmp"
             with open(temp_file, "w") as f:
                 json.dump(jobs_dict, f, indent=2)
             os.replace(temp_file, JOBS_FILE)
         except Exception as e:
             logger.error(f"Failed to save jobs database: {e}")
 
+
 def load_jobs_db():
     if os.path.exists(JOBS_FILE):
         try:

apps/musicseerr/tasks.py

@@ -20,15 +20,20 @@ logger = logging.getLogger("musicseerr-tasks")
 
 JOBS_FILE = "/remote-music/.musicseerr_jobs.json"
 
+JOBS_WRITE_LOCK = threading.Lock()
+
 def save_jobs(jobs_dict):
+    with JOBS_WRITE_LOCK:
         try:
-        temp_file = JOBS_FILE + ".tmp"
+            import uuid
+            temp_file = f"{JOBS_FILE}.{uuid.uuid4()}.tmp"
             with open(temp_file, "w") as f:
                 json.dump(jobs_dict, f, indent=2)
             os.replace(temp_file, JOBS_FILE)
         except Exception as e:
             logger.error(f"Failed to save jobs database: {e}")
 
+
 def move_new_files_to_dest(temp_dir: str, dest_dir: str) -> list:
     moved = []
     if not os.path.exists(temp_dir):