infra: add logging wrapping

Resolves issues with gcp cloud logging quirks such as field names

go/internal/utils/env.go

@@ -2,7 +2,8 @@ package utils
 
 import (
 	"os"
-	"log/slog"
+
+	"github.com/flowy-live/llink/internal/utils/flog"
 )
 
 // EnvVar enumerates the env vars referenced via this package.
@@ -15,7 +16,7 @@ func MustGetEnv[T string | EnvVar](key T) string {
 	keyString := string(key)
 	value := os.Getenv(keyString)
 	if value == "" {
-		slog.Errorf("Missing required environment variable %s", key)
+		flog.Error("missing required environment variable", "key", key)
 		panic("Missing required environment variable")
 	}
 
@@ -26,7 +27,7 @@ func MustGetEnv[T string | EnvVar](key T) string {
 func GetEnv(key string) string {
 	value := os.Getenv(key)
 	if value == "" {
-	    slog.Warnf("Missing optional environment variable %s", key)
+		flog.Warn("missing optional environment variable", "key", key)
 	}
 	return value
 }