fix(tg-bot): fail fast on unauthorized app lookup

Remove 401 fallback app fabrication in getAppByName so auth failures surface explicitly.

Made-with: Cursor

Author: VoxHash

src/client/LicenseChainClient.js

@@ -326,12 +326,6 @@ class LicenseChainClient {
         app.id === appName
       );
     } catch (error) {
-      // If API requires auth and fails, try using appName as appId directly
-      if (error.response?.status === 401) {
-        console.warn('API authentication failed, trying appName as appId');
-        // Return a mock app object with the appName as id
-        return { id: appName, name: appName, slug: appName };
-      }
       throw new Error(`Failed to get app: ${error.response?.data?.message || error.message}`);
     }
   }