dave: give present notes a proper tool response

so the ai know we actually did something

crates/notedeck_dave/src/lib.rs

@@ -129,10 +129,10 @@ You are an AI agent for the nostr protocol called Dave, created by Damus. nostr
                     for call in &toolcalls {
                         // execute toolcall
                         match call.calls() {
-                            ToolCalls::PresentNotes(_note_ids) => {
+                            ToolCalls::PresentNotes(present) => {
                                 self.chat.push(Message::ToolResponse(ToolResponse::new(
                                     call.id().to_owned(),
-                                    ToolResponses::PresentNotes,
+                                    ToolResponses::PresentNotes(present.note_ids.len() as i32),
                                 )));
 
                                 should_send = true;

crates/notedeck_dave/src/tools.rs

@@ -93,7 +93,7 @@ pub struct QueryResponse {
 pub enum ToolResponses {
     Error(String),
     Query(QueryResponse),
-    PresentNotes,
+    PresentNotes(i32),
 }
 
 #[derive(Debug, Clone)]
@@ -499,7 +499,7 @@ struct SimpleNote {
 /// it can interepret it and take further action
 fn format_tool_response_for_ai(txn: &Transaction, ndb: &Ndb, resp: &ToolResponses) -> String {
     match resp {
-        ToolResponses::PresentNotes => "".to_string(),
+        ToolResponses::PresentNotes(n) => format!("{n} notes presented to the user"),
         ToolResponses::Error(s) => format!("error: {}", &s),
 
         ToolResponses::Query(search_r) => {