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/zalouser/src/channel.ts

@@ -625,7 +625,7 @@ export const zalouserPlugin: ChannelPlugin<ResolvedZalouserAccount> = {
         }
         ctx.setStatus({
           accountId: account.accountId,
-          user: userInfo,
+          profile: userInfo,
         });
       } catch {
         // ignore probe errors