Improve sync feedback and dashboard layout

Add request counters to Radio 357 backfill logs, clarify RNŚ warnings, and refine responsive dashboard metrics and configuration layout.

core/scrapers/rns.py

@@ -253,6 +253,7 @@ class RNScraper:
         
         new_found = 0
         missing_player_count = 0
+        missing_player_titles = []
         valid_cards = 0
         
         for card in cards:
@@ -266,6 +267,8 @@ class RNScraper:
             
             if not player_box:
                 missing_player_count += 1
+                if title_el := card.find("p", class_="rns-post-title"):
+                    missing_player_titles.append(title_el.get_text(strip=True))
                 
             if audio_url and not audio_url.startswith("http"):
                 audio_url = f"{BASE_URL}/{audio_url.lstrip('/')}"
@@ -315,7 +318,10 @@ class RNScraper:
             invalid_response("rns", "HTML_SCHEMA_CHANGED", "Znaleziono karty podcastów bez oczekiwanych identyfikatorów", url, content=html)
         
         if missing_player_count:
-            warning = f"{missing_player_count} odcinków bez dostępnego playera audio; pomijam ich URL-e."
+            titles = ", ".join(missing_player_titles[:3])
+            warning = f"Audycja {program_slug}: {missing_player_count} odcinków bez dostępnego playera audio; pomijam ich URL-e."
+            if titles:
+                warning += f" Odcinki: {titles}."
             if self.warning_callback:
                 self.warning_callback(warning)
             else: