fix(ui): suppress [TikTok] and [Apify] log lines in non-TTY mode

Only print debug log lines when running in an interactive terminal.
In Claude Code (non-TTY), the spinner system handles progress display,
so these raw log lines just add noise.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

scripts/lib/apify_client_wrapper.py

@@ -59,8 +59,6 @@ def run_actor_sync(
     Returns:
         List of result dicts from the actor's default dataset
     """
-    _log(f"Running actor {actor_id} (timeout={timeout_secs}s)")
-
     run = client.actor(actor_id).call(
         run_input=run_input,
         timeout_secs=timeout_secs,
@@ -72,12 +70,11 @@ def run_actor_sync(
 
     if max_items and len(items) > max_items:
         items = items[:max_items]
-
-    _log(f"Actor {actor_id} returned {len(items)} items")
     return items
 
 
 def _log(msg: str):
-    """Log to stderr."""
+    """Log to stderr (only in interactive terminals; spinner handles non-TTY)."""
-    sys.stderr.write(f"[Apify] {msg}\n")
+    if sys.stderr.isatty():
-    sys.stderr.flush()
+        sys.stderr.write(f"[Apify] {msg}\n")
+        sys.stderr.flush()

scripts/lib/tiktok.py

@@ -128,9 +128,10 @@ def _extract_core_subject(topic: str) -> str:
 
 
 def _log(msg: str):
-    """Log to stderr."""
+    """Log to stderr (only in interactive terminals; spinner handles non-TTY)."""
-    sys.stderr.write(f"[TikTok] {msg}\n")
+    if sys.stderr.isatty():
-    sys.stderr.flush()
+        sys.stderr.write(f"[TikTok] {msg}\n")
+        sys.stderr.flush()
 
 
 def _parse_date(item: Dict[str, Any]) -> Optional[str]: