fix: default DEM URL to api.open-elevation.com

No configuration needed out of the box; --dem-url only required to
override the default with a self-hosted or alternative endpoint.

bincio/edit/cli.py

@@ -25,7 +25,7 @@ console = Console()
 @click.option("--strava-client-secret", default=None, envvar="STRAVA_CLIENT_SECRET",
               help="Strava API client secret. Also reads STRAVA_CLIENT_SECRET env var.")
 @click.option("--dem-url", default=None, envvar="DEM_URL",
-              help="Base URL of an Open-Elevation-compatible API (enables 'Recalculate elevation' button).")
+              help="Base URL of an Open-Elevation-compatible API (default: https://api.open-elevation.com).")
 def edit(
     data_dir: Optional[str],
     port: int,
@@ -78,10 +78,7 @@ def edit(
         console.print(f"Strava sync: [green]enabled[/green] (client {strava_client_id})")
     else:
         console.print("Strava sync: [yellow]disabled[/yellow] (pass --strava-client-id to enable)")
-    if dem_url:
-        console.print(f"DEM:         [green]enabled[/green] ({dem_url})")
-    else:
-        console.print("DEM:         [yellow]disabled[/yellow] (pass --dem-url to enable elevation recalculation)")
+    console.print(f"DEM:         [cyan]{srv.dem_url}[/cyan]")
 
     uvicorn.run(srv.app, host="127.0.0.1", port=port, log_level="warning")