Make godotenv.Load() best-effort to support containerized deployments

A missing .env file no longer causes a fatal error. Env vars can now
come from the container environment (Docker/systemd) or a .env file
interchangeably.

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

cmd/cli/main.go

@@ -4,7 +4,6 @@ Copyright © 2024 NAME HERE <EMAIL ADDRESS>
 package main
 
 import (
-	"log"
 	"os"
 
 	"github.com/hculpan/areweplaying/cmd/cli/cmd"
@@ -13,10 +12,7 @@ import (
 )
 
 func main() {
-	err := godotenv.Load()
-	if err != nil {
-		log.Fatal(err)
-	}
+	godotenv.Load()
 
 	logFile := os.Getenv("CLI_LOG_FILE")
 	if len(logFile) > 0 {

pkg/email/config.go

@@ -37,10 +37,7 @@ func NewConfigFromEnv() (*Config, error) {
 	var fetchServer string
 	var sendServer string
 
-	err := godotenv.Load()
-	if err != nil {
-		return nil, fmt.Errorf("error loading .env file: %s", err)
-	}
+	godotenv.Load()
 
 	username = os.Getenv("EMAIL_USERNAME")
 	password = os.Getenv("EMAIL_PASSWORD")