chore: add Vite environment types

Added src/vite-env.d.ts containing the Vite environment type interfaces.

src/vite-env.d.ts

@@ -0,0 +1,24 @@
+/*
+Copyright 2026 Seekra
+
+Licensed 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.
+*/
+
+interface ImportMetaEnv {
+    readonly VITE_ASSETS_BUILD_ID: string;
+    readonly VITE_ASSETS_BASE_URL: string;
+}
+
+interface ImportMeta {
+    readonly env: ImportMetaEnv;
+}