feat: Refactor message handling and update dependencies

- Added required packages to go.mod: `github.com/Laisky/errors/v2 v2.0.1`, `github.com/stretchr/testify v1.8.3`, `github.com/davecgh/go-spew v1.1.1`, `github.com/pmezard/go-difflib v1.0.0`
- Increased the number of returned recordings to 100 in `relay-utils.go`
- Refactored and simplified code in `relay-aiproxy.go` for improved message retrieval and error handling
- Added new test file `relay_test.go` and various test cases for different message types
- Modified functions in `group.go` and `relay.go` for improved functionality

common/init.go

@@ -23,17 +23,17 @@ func printHelp() {
 }
 
 func init() {
-	flag.Parse()
+	// flag.Parse()
 
-	if *PrintVersion {
-		fmt.Println(Version)
-		os.Exit(0)
-	}
+	// if *PrintVersion {
+	// 	fmt.Println(Version)
+	// 	os.Exit(0)
+	// }
 
-	if *PrintHelp {
-		printHelp()
-		os.Exit(0)
-	}
+	// if *PrintHelp {
+	// 	printHelp()
+	// 	os.Exit(0)
+	// }
 
 	if os.Getenv("SESSION_SECRET") != "" {
 		SessionSecret = os.Getenv("SESSION_SECRET")