refactor(backend/handlers): use withRequestLogAttrs helper for logging

Replace manual IP logging using `uploadClientIP(r)` with the
`withRequestLogAttrs` helper function in `manage.go`. This simplifies
the log statements and standardizes the extraction of request-related
attributes.

backend/libs/middleware/logger.go

@@ -1,64 +0,0 @@
-package middleware
-
-import (
-	"log/slog"
-	"net/http"
-	"time"
-
-	"warpbox.dev/backend/libs/services"
-)
-
-type statusRecorder struct {
-	http.ResponseWriter
-	status int
-	bytes  int
-}
-
-func (r *statusRecorder) WriteHeader(status int) {
-	r.status = status
-	r.ResponseWriter.WriteHeader(status)
-}
-
-func (r *statusRecorder) Write(data []byte) (int, error) {
-	if r.status == 0 {
-		r.status = http.StatusOK
-	}
-	n, err := r.ResponseWriter.Write(data)
-	r.bytes += n
-	return n, err
-}
-
-func Logger(logger *slog.Logger) Middleware {
-	return func(next http.Handler) http.Handler {
-		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			start := time.Now()
-			recorder := &statusRecorder{ResponseWriter: w}
-
-			next.ServeHTTP(recorder, r)
-
-			status := recorder.status
-			if status == 0 {
-				status = http.StatusOK
-			}
-			ip, ok := services.ClientIPFromContext(r)
-			if !ok {
-				ip = services.ClientIP(r.RemoteAddr, r.Header.Get("X-Forwarded-For"), r.Header.Get("X-Real-IP"), nil)
-			}
-
-			logger.Info("http request",
-				"source", "http",
-				"severity", "dev",
-				"code", status,
-				"method", r.Method,
-				"path", r.URL.Path,
-				"status", status,
-				"bytes", recorder.bytes,
-				"duration_ms", time.Since(start).Milliseconds(),
-				"request_id", RequestIDFromContext(r.Context()),
-				"ip", ip,
-				"remote_addr", r.RemoteAddr,
-				"user_agent", r.UserAgent(),
-			)
-		})
-	}
-}