feat: configurable tab labels and search nouns from plugin metadata

Script plugins can now declare tab_label and search_noun in their
plugin.toml [[providers]] section. These flow through the Provider
trait, IPC ProviderDesc, and into the UI via provider_meta::resolve().
Unknown plugins auto-generate labels from type_id instead of showing
a generic "Plugin" label.

crates/owlry-core/src/plugins/runtime_loader.rs

@@ -41,6 +41,8 @@ pub struct ScriptProviderInfo {
     pub default_icon: RString,
     pub is_static: bool,
     pub prefix: owlry_plugin_api::ROption<RString>,
+    pub tab_label: owlry_plugin_api::ROption<RString>,
+    pub search_noun: owlry_plugin_api::ROption<RString>,
 }
 
 // Type alias for backwards compatibility
@@ -273,6 +275,14 @@ impl Provider for RuntimeProvider {
     fn items(&self) -> &[LaunchItem] {
         &self.items
     }
+
+    fn tab_label(&self) -> Option<&str> {
+        self.info.tab_label.as_ref().map(|s| s.as_str()).into()
+    }
+
+    fn search_noun(&self) -> Option<&str> {
+        self.info.search_noun.as_ref().map(|s| s.as_str()).into()
+    }
 }
 
 // RuntimeProvider is Send + Sync because: