dave: fix bugs

fixed some bugs i introduced during the refactor

Signed-off-by: William Casarin <jb55@jb55.com>

crates/notedeck_dave/src/tools.rs

@@ -45,10 +45,18 @@ impl PartialToolCall {
         self.id.as_deref()
     }
 
+    pub fn id_mut(&mut self) -> &mut Option<String> {
+        &mut self.id
+    }
+
     pub fn name(&self) -> Option<&str> {
         self.name.as_deref()
     }
 
+    pub fn name_mut(&mut self) -> &mut Option<String> {
+        &mut self.name
+    }
+
     pub fn arguments(&self) -> Option<&str> {
         self.arguments.as_deref()
     }