fix: restore verbose tool summaries in DM sessions

875b018ea removed onToolResult from dispatch-from-config.ts to prevent
tool summaries leaking into group channels. However, this also broke
verbose tool summaries in DM/private sessions where they are expected.

This restores onToolResult but gates it behind ChatType !== 'group',
so group channels remain unaffected while DM verbose works again.

mirror=false is passed to sendPayloadAsync to avoid duplicating tool
summaries in the session transcript (matching the block reply behavior).

Fixes #2665

src/auto-reply/reply/dispatch-from-config.ts

@@ -276,6 +276,27 @@ export async function dispatchReplyFromConfig(params: {
       ctx,
       {
         ...params.replyOptions,
+        onToolResult:
+          ctx.ChatType !== "group"
+            ? (payload: ReplyPayload) => {
+                const run = async () => {
+                  const ttsPayload = await maybeApplyTtsToPayload({
+                    payload,
+                    cfg,
+                    channel: ttsChannel,
+                    kind: "tool",
+                    inboundAudio,
+                    ttsAuto: sessionTtsAuto,
+                  });
+                  if (shouldRouteToOriginating) {
+                    await sendPayloadAsync(ttsPayload, undefined, false);
+                  } else {
+                    dispatcher.sendToolResult(ttsPayload);
+                  }
+                };
+                return run();
+              }
+            : undefined,
         onBlockReply: (payload: ReplyPayload, context) => {
           const run = async () => {
             // Accumulate block text for TTS generation after streaming