Add reset API in Dashboard

recounting_dashboard.py

@@ -4,6 +4,7 @@ Recounting dashboard — consumes live counter + recount APIs,
 lists OUTPUT_DIR MP4 files, streams MP4 via ffmpeg RTSP → go2rtc for preview.
 """
 import json
+import logging
 import os
 import re
 import subprocess
@@ -18,6 +19,9 @@ from werkzeug.serving import WSGIRequestHandler
 from dotenv import load_dotenv
 load_dotenv()
 
+log = logging.getLogger('werkzeug')
+log.setLevel(logging.ERROR)
+
 app = Flask(__name__, template_folder="templates")
 app.config["SECRET_KEY"] = os.getenv("SECRET_KEY", "change-me-in-production")
 
@@ -126,6 +130,13 @@ def start_recount():
 
     with _streaming_lock:
         _stop_ffmpeg_locked()
+
+    try:
+        _http_session.post(f"{RECOUNT_API_URL}/api/reset", timeout=5)
+    except Exception:
+        pass
+
+    with _streaming_lock:
         _current_file = mp4_path
         cmd = [
             "ffmpeg", "-re", "-i", mp4_path,