feat: Add ID generation utilities with rule ID, event ID, and random string generators

- Add GenerateRuleID function using nanosecond timestamp
- Add GetCurrentTime helper returning current time
- Add GenerateEventID function with "evt_" prefix and 16-character random string
- Add GenerateRandomString function with alphanumeric charset

apps/carrier-connector/internal/id/generate.go

@@ -0,0 +1,31 @@
+package id
+
+import (
+	"fmt"
+	"time"
+)
+
+
+func GenerateRuleID() string {
+	return fmt.Sprintf("rule_%d", GetCurrentTime().UnixNano())
+}
+
+// GetCurrentTime returns the current time
+func GetCurrentTime() time.Time {
+	return time.Now()
+}
+
+func GenerateEventID() string {
+	// Generate unique event ID (implementation depends on your ID generation strategy)
+	return "evt_" + GenerateRandomString(16)
+}
+
+func GenerateRandomString(length int) string {
+	// Generate random string (implementation depends on your random string generation)
+	const charset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+	b := make([]byte, length)
+	for i := range b {
+		b[i] = charset[i%len(charset)]
+	}
+	return string(b)
+}