Route templates: a route named x-* serves any request route x-<something>

Implemented-By: OpenCode session (model recorded in docs/implementer-log.md)

internal/config/config.go

@@ -358,7 +358,7 @@ func (c *Config) checkRoutes(peersDefined map[string]bool, identityDefined bool)
 	for _, name := range names {
 		r := c.Routes[name]
 
-		if !routeName.MatchString(name) {
+		if !routeName.MatchString(name) && !templateName.MatchString(name) {
 			return &Error{Field: fmt.Sprintf("routes.%s", name), Msg: "must match [a-z0-9][a-z0-9-]*"}
 		}