feat: add server-side device deletion

- add portal API and UI action to delete non-default devices
- protect the configured portal default device from deletion
- document that trip/history pages still scope to the single DEVICE_NAME

Co-authored-by: Copilot <[email protected]>

server/app.py

@@ -699,6 +699,19 @@ def portal_device_request_sync(device_id):
     return jsonify(result)
 
 
+@app.delete("/api/v1/portal/devices/<int:device_id>")
+@require_login
+def portal_device_delete(device_id):
+    success, errors = device_registry.delete_device(
+        device_id,
+        protected_device_name=os.environ.get("DEVICE_NAME", "yaris-2013"),
+    )
+    if not success:
+        status = 404 if errors.get("error") == "Device not found." else 409
+        return jsonify(error=errors.get("error", "Could not delete device.")), status
+    return jsonify(status="deleted")
+
+
 @app.get("/api/v1/portal/device-config")
 @require_login
 def portal_device_config_get():