fix: make sure we dont try to decode jpgs into json

server/internal/handler/handler.go

@@ -69,10 +69,10 @@ func (h *Handler) post(w http.ResponseWriter, r *http.Request, target string) {
 	defer r.Body.Close()
 
 	contentType := r.Header.Get("Content-Type")
-	isJSON := strings.HasPrefix(contentType, "application/json")
+	isResource := strings.HasPrefix(contentType, "application/json") && strings.HasSuffix(target, ".md")
 
 	var contentToWrite []byte
-	if strings.HasSuffix(target, ".md") && isJSON {
+	if isResource {
 		renderedContent, err := renderer.RenderFile(body)
 		if err != nil {
 			writeError(w, http.StatusInternalServerError, fmt.Errorf("failed to render file: %w", err))
@@ -88,15 +88,18 @@ func (h *Handler) post(w http.ResponseWriter, r *http.Request, target string) {
 		return
 	}
 
+	if isResource {
 		var data map[string]any
-	if err := json.Unmarshal(body, &data); err != nil {
+		if err := json.Unmarshal(body, &data); err != nil && strings.HasSuffix(target, ".md") {
 			writeError(w, http.StatusInternalServerError, fmt.Errorf("failed to decode body: %w", err))
 			return
 		}
-
 		writeJSON(w, http.StatusOK, data)
 	}
 
+	writeJSON(w, http.StatusOK, map[string]any{"success": true})
+}
+
 func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	reqPath := r.URL.Path
 	if reqPath == "" {