chore(nvd3): delete unused vendored explore URL helpers

The vendored exploreUtils module in legacy-preset-chart-nvd3 exports
getURIDirectory and getExploreLongUrl, but nothing imports either one. The
only module used from that vendor directory is AnnotationTypes.ts, and the
file is not re-exported from the plugin's src/index.ts, so it is not part of
the package's API surface either.

Its `/superset/explore_json/` literal was the only reason this branch touched
the file; deleting it drops the literal outright rather than pointing dead
code at a canonical path. The live copy of the same helper in
preset-chart-deckgl, reached from Multi.tsx, keeps the `/explore_json/` path
set in the previous commit.

This leaves fast-safe-stringify -- now unused across the whole frontend --
still declared in the plugin's package.json. Removing it requires
regenerating package-lock.json, so it is better done on its own.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

superset-frontend/plugins/legacy-preset-chart-nvd3/src/vendor/superset/exploreUtils.ts

@@ -1,69 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-// @ts-nocheck -- vendor file; not fully typed
-/* eslint camelcase: 0 */
-import URI from 'urijs';
-import safeStringify from 'fast-safe-stringify';
-
-const MAX_URL_LENGTH = 8000;
-
-export function getURIDirectory(formData, endpointType = 'base') {
-  // Building the directory part of the URI
-  let directory = '/explore/';
-  if (['json', 'csv', 'query', 'results', 'samples'].includes(endpointType)) {
-    directory = '/superset/explore_json/';
-  }
-
-  return directory;
-}
-
-export function getExploreLongUrl(
-  formData,
-  endpointType,
-  allowOverflow = true,
-  extraSearch = {},
-) {
-  if (!formData.datasource) {
-    return null;
-  }
-
-  const uri = new URI('/');
-  const directory = getURIDirectory(formData, endpointType);
-  const search = uri.search(true);
-  Object.keys(extraSearch).forEach(key => {
-    search[key] = extraSearch[key];
-  });
-  search.form_data = safeStringify(formData);
-  if (endpointType === 'standalone') {
-    search.standalone = 'true';
-  }
-  const url = uri.directory(directory).search(search).toString();
-  if (!allowOverflow && url.length > MAX_URL_LENGTH) {
-    const minimalFormData = {
-      datasource: formData.datasource,
-      viz_type: formData.viz_type,
-    };
-
-    return getExploreLongUrl(minimalFormData, endpointType, false, {
-      URL_IS_TOO_LONG_TO_SHARE: null,
-    });
-  }
-
-  return url;
-}

superset-frontend/plugins/preset-chart-deckgl/src/utils/explore.ts

@@ -26,7 +26,7 @@ export function getURIDirectory(endpointType = 'base') {
   // Building the directory part of the URI
   let directory = '/explore/';
   if (['json', 'csv', 'query', 'results', 'samples'].includes(endpointType)) {
-    directory = '/superset/explore_json/';
+    directory = '/explore_json/';
   }
 
   return directory;

superset/migrations/shared/native_filters.py

@@ -335,7 +335,7 @@ def migrate_dashboard(dashboard: Dashboard) -> None:  # noqa: C901
 
                 meta["code"] = dedent(
                     f"""
-                        &#9888; The <a href="/superset/slice/{slc.id}/">{slc.slice_name}
+                        &#9888; The <a href="/slice/{slc.id}/">{slc.slice_name}
                         </a> filter-box chart has been migrated to a native filter.
                         """
                 )