feat: simplify data and add cache to LocalFsAdapter

server/internal/handler/error.go

@@ -3,8 +3,6 @@ package handler
 import (
 	"encoding/json"
 	"net/http"
-
-	"git.max-richter.dev/max/marka/server-new/internal/adapters"
 )
 
 type ErrorResponse struct {
@@ -20,8 +18,3 @@ func writeJSON(w http.ResponseWriter, code int, v any) {
 	w.WriteHeader(code)
 	_ = json.NewEncoder(w).Encode(v)
 }
-
-func writeFile(w http.ResponseWriter, file *adapters.FsFile) {
-	w.Header().Set("Content-Type", file.Type)
-	w.Write(file.Content)
-}