diff --git a/booru_viewer/gui/app.py b/booru_viewer/gui/app.py
index 4de9ea6..b8480b9 100644
--- a/booru_viewer/gui/app.py
+++ b/booru_viewer/gui/app.py
@@ -51,30 +51,6 @@ from .settings import SettingsDialog
 log = logging.getLogger("booru")
 
 
-class AsyncSignals(QObject):
-    """Signals for async worker results."""
-    search_done = Signal(list)
-    search_append = Signal(list)
-    search_error = Signal(str)
-    thumb_done = Signal(int, str)
-    image_done = Signal(str, str)
-    image_error = Signal(str)
-    # Fast-path for uncached video posts: emit the remote URL directly
-    # so mpv can start streaming + decoding immediately instead of
-    # waiting for download_image to write the whole file to disk first.
-    # download_image still runs in parallel to populate the cache for
-    # next time. Args: (url, info, width, height) — width/height come
-    # from post.width/post.height for the popout pre-fit optimization.
-    video_stream = Signal(str, str, int, int)
-    bookmark_done = Signal(int, str)
-    bookmark_error = Signal(str)
-    autocomplete_done = Signal(list)
-    batch_progress = Signal(int, int)      # current, total
-    batch_done = Signal(str)
-    download_progress = Signal(int, int)  # bytes_downloaded, total_bytes
-    prefetch_progress = Signal(int, float)  # index, progress (0-1 or -1 to hide)
-
-
 # -- Info Panel --
 
 class InfoPanel(QWidget):
@@ -3577,3 +3553,4 @@ def run() -> None:
 # -- Refactor compatibility shims (deleted in commit 14) --
 from .search_state import SearchState  # re-export for refactor compat
 from .log_handler import LogHandler  # re-export for refactor compat
+from .async_signals import AsyncSignals  # re-export for refactor compat
diff --git a/booru_viewer/gui/async_signals.py b/booru_viewer/gui/async_signals.py
new file mode 100644
index 0000000..9ae7920
--- /dev/null
+++ b/booru_viewer/gui/async_signals.py
@@ -0,0 +1,29 @@
+"""Qt signal hub for async worker results."""
+
+from __future__ import annotations
+
+from PySide6.QtCore import QObject, Signal
+
+
+class AsyncSignals(QObject):
+    """Signals for async worker results."""
+    search_done = Signal(list)
+    search_append = Signal(list)
+    search_error = Signal(str)
+    thumb_done = Signal(int, str)
+    image_done = Signal(str, str)
+    image_error = Signal(str)
+    # Fast-path for uncached video posts: emit the remote URL directly
+    # so mpv can start streaming + decoding immediately instead of
+    # waiting for download_image to write the whole file to disk first.
+    # download_image still runs in parallel to populate the cache for
+    # next time. Args: (url, info, width, height) — width/height come
+    # from post.width/post.height for the popout pre-fit optimization.
+    video_stream = Signal(str, str, int, int)
+    bookmark_done = Signal(int, str)
+    bookmark_error = Signal(str)
+    autocomplete_done = Signal(list)
+    batch_progress = Signal(int, int)      # current, total
+    batch_done = Signal(str)
+    download_progress = Signal(int, int)  # bytes_downloaded, total_bytes
+    prefetch_progress = Signal(int, float)  # index, progress (0-1 or -1 to hide)