Consolidate log file env vars: AWP_LOG_FILE (web) and AWP_CLI_LOG_FILE (CLI)

Removes the duplicate log setup from cli/cmd/root.go that was reading
AWP_LOG_FILE — log file config now lives only in each binary's main.go.

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

cmd/cli/cmd/root.go

@@ -1,8 +1,6 @@
 package cmd
 
 import (
-	"fmt"
-	"log"
 	"os"
 
 	"github.com/joho/godotenv"
@@ -15,14 +13,6 @@ var rootCmd = &cobra.Command{
 	Long:  `CLI utility for Are We Playing? web app`,
 	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
 		godotenv.Load()
-		logFile := os.Getenv("AWP_LOG_FILE")
-		if len(logFile) > 0 {
-			f, err := os.OpenFile(logFile, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
-			if err != nil {
-				return fmt.Errorf("unable to open log file %s: %w", logFile, err)
-			}
-			log.SetOutput(f)
-		}
 		return nil
 	},
 }

cmd/cli/main.go

@@ -14,7 +14,7 @@ import (
 func main() {
 	godotenv.Load()
 
-	logFile := os.Getenv("CLI_LOG_FILE")
+	logFile := os.Getenv("AWP_CLI_LOG_FILE")
 	if len(logFile) > 0 {
 		utils.SetLogFile(logFile)
 	}

cmd/web/main.go

@@ -28,7 +28,7 @@ func main() {
 		log.Fatal("unable to load APP_KEY")
 	}
 
-	logFile := os.Getenv("WEB_LOG_FILE")
+	logFile := os.Getenv("AWP_LOG_FILE")
 	if len(logFile) > 0 {
 		utils.SetLogFile(logFile)
 	}