Changeset 0.33.0 (#207)

Co-authored-by: Jeffrey Smith <jasafpro@gmail.com>
Co-committed-by: Jeffrey Smith <jasafpro@gmail.com>

server/logging/logger.go

@@ -0,0 +1,39 @@
+// Package logging provides structured logging configuration for
+// Chat Switchboard using the standard library's log/slog package.
+// Configured via LOG_FORMAT ("text"|"json") and LOG_LEVEL env vars.
+package logging
+
+import (
+	"log/slog"
+	"os"
+	"strings"
+)
+
+// Init configures the global slog logger.
+//
+//   - format: "json" for machine-parseable output, anything else for
+//     human-readable key=value pairs (backward-compatible default).
+//   - level: "debug", "info" (default), "warn", "error".
+func Init(format, level string) {
+	var lvl slog.Level
+	switch strings.ToLower(level) {
+	case "debug":
+		lvl = slog.LevelDebug
+	case "warn", "warning":
+		lvl = slog.LevelWarn
+	case "error":
+		lvl = slog.LevelError
+	default:
+		lvl = slog.LevelInfo
+	}
+
+	opts := &slog.HandlerOptions{Level: lvl}
+	var handler slog.Handler
+	if strings.ToLower(format) == "json" {
+		handler = slog.NewJSONHandler(os.Stdout, opts)
+	} else {
+		handler = slog.NewTextHandler(os.Stdout, opts)
+	}
+
+	slog.SetDefault(slog.New(handler))
+}