refactor: derive Ruby action namespaces from Rust catalog

src/ruby.rs

@@ -463,15 +463,26 @@ struct Host {
 
 impl Host {
     fn spawn(mode: &str, path: &Path, options: &serde_json::Value) -> Result<Self, String> {
-        let mut encoded_options = FrameWriter(Vec::new());
-        serde_json::to_writer(&mut encoded_options, options)
-            .map_err(|error| format!("Cannot encode bounded Ruby plugin options: {error}"))?;
+        #[derive(Serialize)]
+        struct Startup<'a> {
+            core_actions: crate::editor::CoreActionCatalog,
+            options: &'a serde_json::Value,
+        }
+        let mut encoded_startup = FrameWriter(Vec::new());
+        serde_json::to_writer(
+            &mut encoded_startup,
+            &Startup {
+                core_actions: crate::editor::CoreActionCatalog,
+                options,
+            },
+        )
+        .map_err(|error| format!("Cannot encode bounded Ruby plugin options: {error}"))?;
         let executable = env::var_os("VAMP_RUBY").unwrap_or_else(|| "ruby".into());
         let mut command = Command::new(&executable);
         command
             .args(["-e", RUNNER, "--", mode])
             .arg(path)
-            .arg(String::from_utf8(encoded_options.0).expect("JSON is UTF-8"))
+            .arg(String::from_utf8(encoded_startup.0).expect("JSON is UTF-8"))
             .current_dir(path.parent().expect("absolute file has a parent"))
             .stdin(Stdio::piped())
             .stdout(Stdio::piped())
@@ -879,6 +890,8 @@ end
             "config.core.lsp_diagnostics",
             "config.core.lsp.hvoer",
             "config.core.lsp",
+            "config.core.lsp.hover.tap { |action| action.name = 'core.delete' }",
+            "config.core.lsp.tap { |namespace| namespace.define_singleton_method(:bogus) { namespace.hover } }.bogus",
         ] {
             let invalid = fixture.file(
                 "invalid_action.rb",