refactor(backend): rename OpenFlare directory to lowercase openflare

backend/openflare/share/edge/logging/logging.go

@@ -0,0 +1,40 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+// Package logging configures structured logging for edge applications.
+package logging
+
+import (
+	"log/slog"
+	"os"
+	"strings"
+)
+
+// Options holds configuration options for the structured logger.
+type Options struct {
+	AddSource bool
+}
+
+// Setup initialises the default slog handler using the given options and the LOG_LEVEL environment variable.
+func Setup(opts Options) {
+	handlerOpts := &slog.HandlerOptions{
+		AddSource: opts.AddSource,
+		Level:     ParseLevel(os.Getenv("LOG_LEVEL")),
+	}
+	handler := slog.NewTextHandler(os.Stdout, handlerOpts)
+	slog.SetDefault(slog.New(handler))
+}
+
+// ParseLevel converts a log-level string (e.g. "debug", "warn") to the corresponding slog.Level.
+func ParseLevel(value string) slog.Level {
+	switch strings.ToLower(strings.TrimSpace(value)) {
+	case "debug":
+		return slog.LevelDebug
+	case "warn", "warning":
+		return slog.LevelWarn
+	case "error":
+		return slog.LevelError
+	default:
+		return slog.LevelInfo
+	}
+}