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/zalo/src/accounts.ts

@@ -3,6 +3,8 @@ import { DEFAULT_ACCOUNT_ID, normalizeAccountId } from "openclaw/plugin-sdk";
 import type { ResolvedZaloAccount, ZaloAccountConfig, ZaloConfig } from "./types.js";
 import { resolveZaloToken } from "./token.js";
 
+export type { ResolvedZaloAccount };
+
 function listConfiguredAccountIds(cfg: OpenClawConfig): string[] {
   const accounts = (cfg.channels?.zalo as ZaloConfig | undefined)?.accounts;
   if (!accounts || typeof accounts !== "object") {