feat(utils): implement MagicDNS suffix handling and normalization for dst_addr

- Added support for extracting and setting MagicDNS suffix.
- Normalized `dst_addr` using the MagicDNS suffix to simplify configuration.
- Improved logging for normalized and failed addresses during `connect` rule processing.

main.go

@@ -43,6 +43,8 @@ func serviceLogic(configPath string, isTsnetDebug bool, configURL string, logger
 	}
 	logger.Info("tsnet server initialized")
 
+	core.NormalizeConnectRulesDstAddr(cfg.Connect, logger)
+
 	core.StartForwarders(ctx, srv, cfg.Forward)
 	core.StartConnectors(ctx, srv, cfg.Connect)