feat: pattern support args and multiple variants; add zed extension for highlight

cmd/cli/main.go

@@ -99,11 +99,7 @@ func main() {
 }
 
 func parseSuite(path string) *dsl.File {
-	src, err := os.ReadFile(path)
-	if err != nil {
-		fatalf("cannot read %q: %v", path, err)
-	}
-	f, warns, err := dsl.Parse(string(src))
+	f, warns, err := dsl.ParseFile(path)
 	if err != nil {
 		fatalf("parse error in %q:\n  %v", path, err)
 	}