fix: remove preWarmAnimeCache poisoning relations

internal/jikan/client.go

@@ -72,21 +72,6 @@ func (c *Client) setCache(key string, data interface{}, ttl time.Duration) {
 	})
 }
 
-// preWarmAnimeCache extracts individual anime from list responses and caches them
-func (c *Client) preWarmAnimeCache(animes []Anime) {
-	for _, a := range animes {
-		cacheKey := fmt.Sprintf("anime:%d", a.MalID)
-
-		// Smart TTL: Finished shows rarely change, cache for 30 days. Airing/Upcoming shows cache for 24 hours.
-		ttl := time.Hour * 24
-		if a.Status == "Finished Airing" {
-			ttl = time.Hour * 24 * 30
-		}
-
-		c.setCache(cacheKey, a, ttl)
-	}
-}
-
 // fetchWithRetry provides robust fetching respecting Jikan's strict 3 req/sec rate limit
 func (c *Client) fetchWithRetry(urlStr string, out interface{}) error {
 	maxRetries := 5