Lets see what lighthouse says

app/main.py

@@ -1,13 +1,31 @@
 from fastapi import FastAPI
 from contextlib import asynccontextmanager
 from fastapi.staticfiles import StaticFiles
+from fastapi.middleware.gzip import GZipMiddleware
 
 from app.controllers.route_to_web import RouteToWeb
 from app.services.markdown_processor import MarkdownProcessor
 from app.services.metadata_processor import MetadataProcessor
 from app.controllers.category_controller import CategoryController
-from fastapi.middleware.gzip import GZipMiddleware
-from app.services.image_controller import ImageHandler
+
+
+class CustomStaticFiles(StaticFiles):
+    """Custom StaticFiles class to add cache headers."""
+    def __init__(self, directory: str, cache_timeout: int = 31536000):
+        """
+        Initialize the custom static files handler.
+
+        :param directory: Directory containing static files.
+        :param cache_timeout: Cache timeout in seconds (default: 1 year).
+        """
+        super().__init__(directory=directory)
+        self.cache_timeout = cache_timeout
+
+    async def get_response(self, path: str, scope):
+        """Override to add custom cache headers."""
+        response = await super().get_response(path, scope)
+        response.headers["Cache-Control"] = f"public, max-age={self.cache_timeout}, immutable"
+        return response
 
 
 class Application:
@@ -16,7 +34,7 @@ class Application:
         self.app = FastAPI(lifespan=self._lifespan_event)
         self._setup_static_files()
         self._include_routers()
-        self._include_middelware()
+        self._include_middleware()
 
     @asynccontextmanager
     async def _lifespan_event(self, app: FastAPI):
@@ -35,26 +53,22 @@ class Application:
         print("App shutdown: Cleanup complete.")
 
     def _setup_static_files(self):
-        """Mount static file directories."""
-        self.app.mount("/data", StaticFiles(directory="data"), name="data")
-        self.app.mount("/static", StaticFiles(directory="static"), name="static")
+        """Mount static file directories with caching."""
+        self.app.mount("/data", CustomStaticFiles(directory="data"), name="data")
+        self.app.mount("/static", CustomStaticFiles(directory="static"), name="static")
+        self.app.mount("/images", CustomStaticFiles(directory="static/images"), name="img")
 
     def _include_routers(self):
         """Include all route controllers."""
         category_controller = CategoryController()
-        #dynamic_controller = DynamicController( "./data" )
         route_to_web = RouteToWeb(self.app)
 
-
-
-        self.app.include_router( category_controller.router )
-        #self.app.include_router( dynamic_controller.router )
+        self.app.include_router(category_controller.router)
         self.app.include_router(route_to_web.router)
 
-
-
-    def _include_middelware(self):
-        self.app.add_middleware( GZipMiddleware, minimum_size = 500 )
+    def _include_middleware(self):
+        """Add middleware for compression and other features."""
+        self.app.add_middleware(GZipMiddleware, minimum_size=500)
 
     def get_app(self):
         """Return the FastAPI app instance."""