llm/ant: add APIKeyEnv
diff --git a/dockerimg/dockerimg.go b/dockerimg/dockerimg.go
index 255e021..2a61142 100644
--- a/dockerimg/dockerimg.go
+++ b/dockerimg/dockerimg.go
@@ -25,6 +25,7 @@
 	"golang.org/x/crypto/ssh"
 	"sketch.dev/browser"
 	"sketch.dev/embedded"
+	"sketch.dev/llm/ant"
 	"sketch.dev/loop/server"
 	"sketch.dev/skribe"
 )
@@ -639,7 +640,7 @@
 		// Forward ANTHROPIC_API_KEY for direct use.
 		// TODO: have outtie run an http proxy?
 		// TODO: select and forward the relevant API key based on the model
-		cmdArgs = append(cmdArgs, "-llm-api-key="+os.Getenv("ANTHROPIC_API_KEY"))
+		cmdArgs = append(cmdArgs, "-llm-api-key="+os.Getenv(ant.APIKeyEnv))
 	}
 	// Add MCP server configurations
 	for _, mcpServer := range config.MCPServers {