feat: add typing mode controls

src/auto-reply/reply.ts

@@ -65,6 +65,10 @@ import {
   prependSystemEvents,
 } from "./reply/session-updates.js";
 import { createTypingController } from "./reply/typing.js";
+import {
+  resolveTypingMode,
+  shouldStartTypingImmediately,
+} from "./reply/typing-mode.js";
 import type { MsgContext, TemplateContext } from "./templating.js";
 import {
   type ElevatedLevel,
@@ -594,7 +598,13 @@ export async function getReplyFromConfig(
   const isGroupChat = sessionCtx.ChatType === "group";
   const wasMentioned = ctx.WasMentioned === true;
   const isHeartbeat = opts?.isHeartbeat === true;
-  const shouldEagerType = (!isGroupChat || wasMentioned) && !isHeartbeat;
+  const typingMode = resolveTypingMode({
+    configured: agentCfg?.typingMode,
+    isGroupChat,
+    wasMentioned,
+    isHeartbeat,
+  });
+  const shouldEagerType = shouldStartTypingImmediately(typingMode);
   const shouldInjectGroupIntro = Boolean(
     isGroupChat &&
       (isFirstTurnInSession || sessionEntry?.groupActivationNeedsSystemIntro),
@@ -816,6 +826,7 @@ export async function getReplyFromConfig(
     resolvedBlockStreamingBreak,
     sessionCtx,
     shouldInjectGroupIntro,
+    typingMode,
   });
 }