Refactor api into different route files

backend/src/routes/identity.rs

@@ -0,0 +1,21 @@
+use std::sync::Arc;
+
+use axum::{extract::State, http::StatusCode, response::Response};
+use serde::Serialize;
+
+use crate::api::{Api, AuthedPubkey};
+use crate::web::ok;
+
+#[derive(Serialize)]
+struct IdentityResponse {
+    pubkey: String,
+    is_admin: bool,
+}
+
+pub async fn get_identity(
+    State(api): State<Arc<Api>>,
+    AuthedPubkey(pubkey): AuthedPubkey,
+) -> Response {
+    let is_admin = api.is_admin(&pubkey);
+    ok(StatusCode::OK, IdentityResponse { pubkey, is_admin })
+}