modified: src/controllers/blogControllers.js ...

modified:   src/controllers/docsControllers.js
	modified:   src/controllers/errorPageController.js
	new file:   src/middleware/cacheUtils.js
	modified:   src/middleware/errorHandler.js
	modified:   src/middleware/index.js
	modified:   src/routes/index.js
	modified:   src/utils/structuredLogger.js