Initial commit: RustyAstro + OpenAPI-Typen aus RustyCMS

Co-authored-by: Cursor <cursoragent@cursor.com>

src/env.d.ts

@@ -0,0 +1,9 @@
+/// <reference types="astro/client" />
+
+interface ImportMetaEnv {
+  readonly PUBLIC_CMS_URL: string;
+}
+
+interface ImportMeta {
+  readonly env: ImportMetaEnv;
+}