Added time to progress message (#4185)

### What problem does this PR solve?

Added time to progress message

### Type of change

- [x] Refactoring

api/db/services/task_service.py

 import random
 import xxhash
 import bisect
+from datetime import datetime
 
 from api.db.db_utils import bulk_insert_into_db
 from deepdoc.parser import PdfParser
         if not docs:
             return None
 
-        msg = "\nTask has been received."
+        msg = f"\n{datetime.now().strftime('%H:%M:%S.%f')} Task has been received."
         prog = random.random() / 10.0
         if docs[0]["retry_count"] >= 3:
             msg = "\nERROR: Task is abandoned after 3 times attempts."

rag/svr/task_executor.py

 
 CONSUMER_NAME = "task_consumer_" + CONSUMER_NO
 PAYLOAD: Payload | None = None
-BOOT_AT = datetime.now().isoformat()
+BOOT_AT = datetime.now().astimezone().isoformat(timespec="milliseconds")
 PENDING_TASKS = 0
 LAG_TASKS = 0
 
     if to_page > 0:
         if msg:
             msg = f"Page({from_page + 1}~{to_page + 1}): " + msg
+    if msg:
+        msg = datetime.now().strftime("%H:%M:%S.%f") + " " + msg
     d = {"progress_msg": msg}
     if prog is not None:
         d["progress"] = prog
             with mt_lock:
                 heartbeat = json.dumps({
                     "name": CONSUMER_NAME,
-                    "now": now.isoformat(),
+                    "now": now.astimezone().isoformat(timespec="milliseconds"),
                     "boot_at": BOOT_AT,
                     "pending": PENDING_TASKS,
                     "lag": LAG_TASKS,