refactor: rename universal_rebuild/ → provider/

- Rename directory
- Update all 9 devops scripts
- Update 4 generator source files
- Rebuild all binaries

TOOLS/resource-generator/main.go

@@ -20,8 +20,8 @@ import (
 	"path/filepath"
 	"strings"
 
-	"resource-generator/loader"
-	"resource-generator/writers"
+	"resource-generator/internal/loader"
+	"resource-generator/internal/writers"
 )
 
 func main() {