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/index.ts

@@ -1,4 +1,4 @@
-import type { OpenClawPluginApi } from "openclaw/plugin-sdk";
+import type { AnyAgentTool, OpenClawPluginApi } from "openclaw/plugin-sdk";
 import { emptyPluginConfigSchema } from "openclaw/plugin-sdk";
 import { zalouserDock, zalouserPlugin } from "./src/channel.js";
 import { setZalouserRuntime } from "./src/runtime.js";
@@ -24,7 +24,7 @@ const plugin = {
         "friends (list/search friends), groups (list groups), me (profile info), status (auth check).",
       parameters: ZalouserToolSchema,
       execute: executeZalouserTool,
-    });
+    } as AnyAgentTool);
   },
 };