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/outbound.ts

@@ -9,32 +9,47 @@ export const feishuOutbound: ChannelOutboundAdapter = {
   chunkerMode: "markdown",
   textChunkLimit: 4000,
   sendText: async ({ cfg, to, text, accountId }) => {
-    const result = await sendMessageFeishu({ cfg, to, text, accountId });
+    const result = await sendMessageFeishu({ cfg, to, text, accountId: accountId ?? undefined });
     return { channel: "feishu", ...result };
   },
   sendMedia: async ({ cfg, to, text, mediaUrl, accountId }) => {
     // Send text first if provided
     if (text?.trim()) {
-      await sendMessageFeishu({ cfg, to, text, accountId });
+      await sendMessageFeishu({ cfg, to, text, accountId: accountId ?? undefined });
     }
 
     // Upload and send media if URL provided
     if (mediaUrl) {
       try {
-        const result = await sendMediaFeishu({ cfg, to, mediaUrl, accountId });
+        const result = await sendMediaFeishu({
+          cfg,
+          to,
+          mediaUrl,
+          accountId: accountId ?? undefined,
+        });
         return { channel: "feishu", ...result };
       } catch (err) {
         // Log the error for debugging
         console.error(`[feishu] sendMediaFeishu failed:`, err);
         // Fallback to URL link if upload fails
         const fallbackText = `📎 ${mediaUrl}`;
-        const result = await sendMessageFeishu({ cfg, to, text: fallbackText, accountId });
+        const result = await sendMessageFeishu({
+          cfg,
+          to,
+          text: fallbackText,
+          accountId: accountId ?? undefined,
+        });
         return { channel: "feishu", ...result };
       }
     }
 
     // No media URL, just return text result
-    const result = await sendMessageFeishu({ cfg, to, text: text ?? "", accountId });
+    const result = await sendMessageFeishu({
+      cfg,
+      to,
+      text: text ?? "",
+      accountId: accountId ?? undefined,
+    });
     return { channel: "feishu", ...result };
   },
 };