fix: playlist truncation overflow and align logging across plugins

- Fix format_playlist truncation: +4 → +5 to account for ", ..." suffix
- Add API error logging to all Sopel command handlers (matching Limnoria)
- Add long-track truncation test case

Made-with: Cursor

plugins/sopel/ntr_playlist.py

@@ -104,7 +104,7 @@ def format_playlist(data: dict) -> str:
     for t in tracks:
         entry = f"{t.get('title', '')} by {t.get('artist', '')}"
         sep = ", " if parts else ""
-        if length + len(sep) + len(entry) + 4 > _MAX_IRC_LINE:  # +4 for " ..."
+        if length + len(sep) + len(entry) + 5 > _MAX_IRC_LINE:  # +5 for ", ..."
             parts.append("...")
             break
         parts.append(entry)
@@ -175,12 +175,14 @@ def ntr_playlist(bot, trigger):
         try:
             data = _api_get(base_url, f"/shows/by-episode/{episode}")
         except ApiError as e:
+            LOGGER.warning("API error for !playlist: %s", e)
             bot.say(e.detail)
             return
     else:
         try:
             data = _api_get(base_url, "/playlist")
         except ApiError as e:
+            LOGGER.warning("API error for !playlist: %s", e)
             bot.say(e.detail)
             return
     bot.say(format_playlist(data))
@@ -192,6 +194,7 @@ def ntr_status(bot, trigger):
     try:
         data = _api_get(base_url, "/health")
     except ApiError as e:
+        LOGGER.warning("API error for !status: %s", e)
         bot.say(e.detail)
         return
     status = data.get("status", "unknown")
@@ -214,6 +217,7 @@ def ntr_refresh(bot, trigger):
     try:
         data = _api_post(base_url, "/admin/refresh", token)
     except ApiError as e:
+        LOGGER.warning("API error for !refresh: %s", e)
         bot.say(f"Refresh failed: {e.detail}")
         return
     count = data.get("track_count", 0)