fix: skip logging for health and readiness probe endpoints

Suppress log output for /healthz and /readyz to reduce noise from
Kubernetes liveness/readiness probes hitting every 10 seconds.

backend/internal/middleware/logging.go

@@ -9,8 +9,15 @@ import (
 
 func Logging() gin.HandlerFunc {
 	return func(c *gin.Context) {
-		start := time.Now()
 		path := c.Request.URL.Path
+
+		// Skip logging for health/readiness probes to reduce noise.
+		if path == "/healthz" || path == "/readyz" {
+			c.Next()
+			return
+		}
+
+		start := time.Now()
 		query := c.Request.URL.RawQuery
 
 		c.Next()