feat: Manual sound data uploads, standalone SLM type added.(no modem mode), Smart uploading with fuzzy name matching enabled.

backend/main.py

@@ -364,6 +364,15 @@ async def nrl_detail_page(
         )
     ).first()
 
+    # Parse connection_mode from location_metadata JSON
+    import json as _json
+    connection_mode = "connected"
+    try:
+        meta = _json.loads(location.location_metadata or "{}")
+        connection_mode = meta.get("connection_mode", "connected")
+    except Exception:
+        pass
+
     template = "vibration_location_detail.html" if location.location_type == "vibration" else "nrl_detail.html"
     return templates.TemplateResponse(template, {
         "request": request,
@@ -376,6 +385,7 @@ async def nrl_detail_page(
         "session_count": session_count,
         "file_count": file_count,
         "active_session": active_session,
+        "connection_mode": connection_mode,
     })