fix: clean time spaces in logs view without modifying stored data

Applies _clean_times when serving json_enviado in /logs/detalle
so old records with "12: 47: 37" display correctly as "12:47:37".

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/routes/logs.py

@@ -1,10 +1,21 @@
+import json as json_lib
 from fastapi import APIRouter, Request, Depends
 from fastapi.responses import JSONResponse
 from app.database import get_connection
 from app.auth import get_current_user
+from app.services.json_generator import _clean_times
 
 router = APIRouter(prefix="/logs", tags=["logs"])
 
+
+def _limpiar_json_enviado(raw: str) -> str:
+    if not raw:
+        return raw
+    try:
+        return json_lib.dumps(_clean_times(json_lib.loads(raw)), ensure_ascii=False, indent=2)
+    except Exception:
+        return raw
+
 PAGE_SIZE = 50
 
 
@@ -95,7 +106,7 @@ async def detalle_envio(envio_id: int, request: Request, user: dict = Depends(ge
         "status": row["status"],
         "mensaje_tns": row["mensaje_tns"],
         "respuesta_api": row["respuesta_api"],
-        "json_enviado": row["json_enviado"],
+        "json_enviado": _limpiar_json_enviado(row["json_enviado"]),
         "fecha_inicio": row["fecha_inicio"],
         "fecha_fin": row["fecha_fin"],
         "created_at": row["created_at"],