Sanity checked all of V2 route conversions (#803)

* follows

* all v2 routes now either convert or have a comment

* added common structs, clippy

* merge fix

---------

Co-authored-by: Geometrically <18202329+Geometrically@users.noreply.github.com>

src/routes/v3/projects.rs

@@ -939,8 +939,8 @@ pub async fn project_get_check(
     }
 }
 
-#[derive(Serialize)]
-struct DependencyInfo {
+#[derive(Serialize, Deserialize)]
+pub struct DependencyInfo {
     pub projects: Vec<Project>,
     pub versions: Vec<models::projects::Version>,
 }