docs+rules: teach httputil.Bind/BindEmpty (web v1.6.0); v1.3.4

Builtins README gains Bind/BindEmpty adapter rows + a path/query binding section
(uuid/time via TextUnmarshaler; default: with min not omitempty,min). New info
rule httputil.prefer-bind flags hand-rolled chi.URLParam / r.URL.Query() reads and
points to Bind. Escape-hatch note rescoped to custom responses only.

cmd/server/main.go

@@ -23,7 +23,7 @@ import (
 
 const (
 	serverName    = "einherjar-mcp"
-	serverVersion = "v1.3.3"
+	serverVersion = "v1.3.4"
 )
 
 func main() {