fix: llmapi install only llmapi target (skip examples/tests)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: Sunrisepeak

packages/l/llmapi/xmake.lua

@@ -22,5 +22,5 @@ package("llmapi")
 
     on_install(function (package)
         local configs = {}
-        import("package.tools.xmake").install(package, configs)
+        import("package.tools.xmake").install(package, configs, {target = "llmapi"})
     end)