Made missing KV_URL env error more obvious

spoticord_config/src/env.rs

@@ -15,3 +15,7 @@ pub static SPOTIFY_CLIENT_SECRET: LazyLock<String> = LazyLock::new(|| {
     std::env::var("SPOTIFY_CLIENT_SECRET")
         .expect("missing SPOTIFY_CLIENT_SECRET environment variable")
 });
+
+// Locked behind `stats` feature
+pub static KV_URL: LazyLock<String> =
+    LazyLock::new(|| std::env::var("KV_URL").expect("missing KV_URL environment variable"));

spoticord_config/src/lib.rs

@@ -31,6 +31,10 @@ pub fn link_url() -> &'static str {
     &env::LINK_URL
 }
 
+pub fn kv_url() -> &'static str {
+    &env::KV_URL
+}
+
 pub fn get_spotify(token: Token) -> AuthCodeSpotify {
     AuthCodeSpotify::from_token_with_config(
         token,