Initial commit: deerflow-server (frontend-web + offline-backend-20260512)

frontend-web/src/env.ts

@@ -0,0 +1,19 @@
+type EnvValue = string | undefined;
+
+function readEnv(
+  key:
+    | "VITE_BACKEND_BASE_URL"
+    | "VITE_LANGGRAPH_BASE_URL"
+    | "VITE_STATIC_WEBSITE_ONLY"
+    | "VITE_GITHUB_OAUTH_TOKEN",
+): EnvValue {
+  const value = import.meta.env[key];
+  return typeof value === "string" && value.trim() ? value : undefined;
+}
+
+export const env = {
+  NEXT_PUBLIC_BACKEND_BASE_URL: readEnv("VITE_BACKEND_BASE_URL"),
+  NEXT_PUBLIC_LANGGRAPH_BASE_URL: readEnv("VITE_LANGGRAPH_BASE_URL"),
+  NEXT_PUBLIC_STATIC_WEBSITE_ONLY: readEnv("VITE_STATIC_WEBSITE_ONLY"),
+  GITHUB_OAUTH_TOKEN: readEnv("VITE_GITHUB_OAUTH_TOKEN"),
+};