Remove unused AI action handling functions

src/App.tsx

@@ -917,63 +917,6 @@ export default function App() {
     };
   }, []);
 
-  const dispatchAiAction = useCallback(
-    (template: AiPromptTemplate | null, isCustomPrompt: boolean) => {
-      const selection = getCurrentAiSelection();
-      if (selection) {
-        setPendingAiScopeChoice({
-          template,
-          selection,
-          isCustomPrompt
-        });
-        return;
-      }
-
-      if (isCustomPrompt) {
-        setCustomPromptText("");
-        setCustomPromptState({
-          scope: "document",
-          selection: null
-        });
-        return;
-      }
-
-      if (!template) return;
-      runAiAction({ template }).catch((error) => {
-        console.error("Failed to run AI tool", error);
-      });
-    },
-    [getCurrentAiSelection, runAiAction]
-  );
-
-  const handleChooseAiScope = useCallback(
-    (scope: AiEditScope) => {
-      const pending = pendingAiScopeChoice;
-      if (!pending) return;
-      setPendingAiScopeChoice(null);
-
-      if (pending.isCustomPrompt) {
-        setCustomPromptText("");
-        setCustomPromptState({
-          scope,
-          selection: scope === "selection" ? pending.selection : null
-        });
-        return;
-      }
-
-      if (!pending.template) return;
-
-      runAiAction({
-        template: pending.template,
-        scope,
-        selection: scope === "selection" ? pending.selection : null
-      }).catch((error) => {
-        console.error("Failed to run AI tool", error);
-      });
-    },
-    [pendingAiScopeChoice, runAiAction]
-  );
-
   const statusKey = useMemo(() => {
     if (isViewingHistory) return "history";
     if (isDirty) return "unsaved";