fix: Remove duplicate monitor name validation across groups

Previously, monitors with the same name in different groups would fail
validation. This restriction has been removed to allow duplicate names
across groups, restoring the original behavior.

Note: Monitors with duplicate names will share the same data in the
database since MonitorName is used as the identifier. A future
enhancement could use group+name as a composite key.

1 files changed, 0 insertions, 5 deletions

diff --git a/internal/config/config.go b/internal/config/config.go
index 71a9b99..f3c35e3 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -288,7 +288,6 @@ func (c *Config) validate() error {
 		return fmt.Errorf("at least one group with monitors is required")
 	}
 
-	monitorNames := make(map[string]bool)
 	for _, group := range c.Groups {
 		if group.Name == "" {
 			return fmt.Errorf("group name cannot be empty")
@@ -300,10 +299,6 @@ func (c *Config) validate() error {
 			if monitor.Name == "" {
 				return fmt.Errorf("monitor name cannot be empty in group %q", group.Name)
 			}
-			if monitorNames[monitor.Name] {
-				return fmt.Errorf("duplicate monitor name: %q", monitor.Name)
-			}
-			monitorNames[monitor.Name] = true
 
 			if monitor.Target == "" {
 				return fmt.Errorf("monitor %q must have a target", monitor.Name)