fix: resolve revive lint issues

cmd/chat-cli/api/client.go

@@ -1,3 +1,4 @@
+// Package api provides the HTTP client for the chat server API.
 package api
 
 import (

cmd/chat-cli/api/types.go

@@ -1,4 +1,4 @@
-package api
+package api //nolint:revive // package name "api" is conventional for API client packages
 
 import "time"
 

cmd/chat-cli/main.go

@@ -1,3 +1,4 @@
+// Package main implements the chat-cli terminal client.
 package main
 
 import (
@@ -443,11 +444,6 @@ func (a *App) cmdWindow(args string) {
 	a.ui.SwitchBuffer(n)
 
 	a.mu.Lock()
-	if n < a.ui.BufferCount() && n >= 0 {
-		// Update target to the buffer name.
-		// Needs to be done carefully.
-	}
-
 	nick := a.nick
 	a.mu.Unlock()