feat: categories and option search

rust/src/model/rainy.rs

@@ -9,6 +9,8 @@ pub struct V1Package {
     pub owner: String,
     pub package_url: String,
     pub is_deprecated: bool,
+    pub has_nsfw_content: bool,
+    pub categories: Vec<String>,
     pub versions: Vec<V1Version>,
 }