TypeScript: add extensions to tsconfig and fix type errors (#12781)

* TypeScript: add extensions to tsconfig and fix type errors

- Add extensions/**/* to tsconfig.json includes
- Export ProviderAuthResult, AnyAgentTool from plugin-sdk
- Fix optional chaining for messageActions across channels
- Add missing type imports (MSTeamsConfig, GroupPolicy, etc.)
- Add type annotations for provider auth handlers
- Fix undici/fetch type compatibility in zalo proxy
- Correct ChannelAccountSnapshot property usage
- Add type casts for tool registrations
- Extract usage view styles and types to separate files

* TypeScript: fix optional debug calls and handleAction guards

extensions/feishu/src/reply-dispatcher.ts

@@ -90,16 +90,11 @@ export function createFeishuReplyDispatcher(params: CreateFeishuReplyDispatcherP
     },
   });
 
-  const textChunkLimit = core.channel.text.resolveTextChunkLimit({
-    cfg,
-    channel: "feishu",
-    defaultLimit: 4000,
+  const textChunkLimit = core.channel.text.resolveTextChunkLimit(cfg, "feishu", accountId, {
+    fallbackLimit: 4000,
   });
   const chunkMode = core.channel.text.resolveChunkMode(cfg, "feishu");
-  const tableMode = core.channel.text.resolveMarkdownTableMode({
-    cfg,
-    channel: "feishu",
-  });
+  const tableMode = core.channel.text.resolveMarkdownTableMode({ cfg, channel: "feishu" });
 
   const { dispatcher, replyOptions, markDispatchIdle } =
     core.channel.reply.createReplyDispatcherWithTyping({