extend webhook per site

backend/app/lifespan.py

@@ -124,6 +124,8 @@ async def lifespan(app: FastAPI):
                 rows = await conn.fetch("SELECT * FROM ems.fn_expire_modes()")
                 for r in rows:
                     await notify_operating_mode_changed(
+                        conn,
+                        int(r["site_id"]) if r.get("site_id") is not None else None,
                         str(r["site_code"]),
                         str(r["old_mode"]),
                         str(r["new_mode"]),
@@ -459,6 +461,8 @@ async def lifespan(app: FastAPI):
                         datetime.now(ZoneInfo("Europe/Prague")) - timedelta(days=1)
                     ).strftime("%Y-%m-%d")
                     await notify_daily_economics(
+                        conn,
+                        site_id,
                         site_code=site_code,
                         day=yesterday,
                         import_kwh=float(row.get("import_kwh") or 0),