httpd: Add endpoint with tracking information

This allows us to check which projects are really tracked by the node
and which aren't and with which scopes and policies.

radicle-httpd/src/api/v1/node.rs

@@ -4,7 +4,7 @@ use axum::routing::get;
 use axum::{Json, Router};
 use serde_json::json;
 
-use radicle::node::Handle;
+use radicle::node::{tracking, Handle};
 use radicle::Node;
 
 use crate::api::error::Error;
@@ -13,6 +13,7 @@ use crate::api::Context;
 pub fn router(ctx: Context) -> Router {
     Router::new()
         .route("/node", get(node_handler))
+        .route("/node/tracking/repos", get(node_tracking_repos_handler))
         .with_state(ctx)
 }
 
@@ -41,3 +42,20 @@ async fn node_handler(State(ctx): State<Context>) -> impl IntoResponse {
 
     Ok::<_, Error>(Json(response))
 }
+
+/// Return local tracking repos information.
+/// `GET /node/tracking/repos`
+async fn node_tracking_repos_handler(State(ctx): State<Context>) -> impl IntoResponse {
+    let tracking = ctx.profile.tracking()?;
+    let mut repos = Vec::new();
+
+    for tracking::Repo { id, scope, policy } in tracking.repo_policies()? {
+        repos.push(json!({
+            "id": id,
+            "scope": scope,
+            "policy": policy,
+        }));
+    }
+
+    Ok::<_, Error>(Json(repos))
+}