fix: stop stale request retries

internal/anime/details_handler.go

@@ -2,6 +2,7 @@ package anime
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"mal/integrations/jikan"
 	"mal/internal/domain"
@@ -181,6 +182,9 @@ func (h *AnimeHandler) handleAnimeDetailsSection(c *gin.Context, id int, section
 
 	data, tplName, err := h.loadAnimeDetailsSection(sectionCtx, id, section)
 	if err != nil {
+		if errors.Is(err, context.Canceled) {
+			return
+		}
 		observability.Warn(
 			"anime_section_fetch_failed",
 			"anime",

internal/playback/handler/proxy_stream.go

@@ -48,6 +48,9 @@ func (h *PlaybackHandler) HandleProxyStream(c *gin.Context) {
 	copyProxyHeaders(c.Writer.Header(), resp.Header)
 	c.Status(resp.StatusCode)
 	if n, err := io.Copy(c.Writer, resp.Body); err != nil {
+		if errors.Is(err, context.Canceled) || c.Request.Context().Err() != nil {
+			return
+		}
 		observability.WarnContext(c.Request.Context(), "proxy_stream_copy_failed", "playback", "", map[string]any{"target_url": targetURL, "bytes_copied": n}, err)
 	}
 }