add unbookmark-on-save setting

New setting "Remove bookmark when saved to library" (off by default).
When enabled, _maybe_unbookmark runs directly in each save callback
after save_post_file succeeds -- handles DB removal, grid dot, preview
state, popout sync, and bookmarks tab refresh. Wired into all 4 save
paths: save_to_library, bulk_save, save_as, batch_download_to.

behavior change: opt-in setting, off by default

booru_viewer/core/db.py

@@ -152,6 +152,7 @@ _DEFAULTS = {
     "library_dir": "",
     "infinite_scroll": "0",
     "library_filename_template": "",
+    "unbookmark_on_save": "0",
 }
 
 

booru_viewer/gui/post_actions.py

@@ -39,6 +39,36 @@ class PostActionsController:
     def is_post_saved(self, post_id: int) -> bool:
         return self._app._db.is_post_in_library(post_id)
 
+    def _maybe_unbookmark(self, post) -> None:
+        """Remove the bookmark for *post* if the unbookmark-on-save setting is on.
+
+        Handles DB removal, grid thumbnail dot, preview state, bookmarks
+        tab refresh, and popout sync in one place so every save path
+        (single, bulk, Save As, batch download) can call it.
+        """
+        if not self._app._db.get_setting_bool("unbookmark_on_save"):
+            return
+        site_id = (
+            self._app._preview._current_site_id
+            or self._app._site_combo.currentData()
+        )
+        if not site_id or not self._app._db.is_bookmarked(site_id, post.id):
+            return
+        self._app._db.remove_bookmark(site_id, post.id)
+        # Update grid thumbnail bookmark dot
+        for i, p in enumerate(self._app._posts):
+            if p.id == post.id and i < len(self._app._grid._thumbs):
+                self._app._grid._thumbs[i].set_bookmarked(False)
+                break
+        # Update preview and popout
+        if (self._app._preview._current_post
+                and self._app._preview._current_post.id == post.id):
+            self._app._preview.update_bookmark_state(False)
+        self._app._popout_ctrl.update_state()
+        # Refresh bookmarks tab if visible
+        if self._app._stack.currentIndex() == 1:
+            self._app._bookmarks_view.refresh()
+
     def get_preview_post(self):
         idx = self._app._grid.selected_index
         if 0 <= idx < len(self._app._posts):
@@ -289,6 +319,7 @@ class PostActionsController:
                     await save_post_file(src, post, dest_dir, self._app._db, in_flight, category_fetcher=fetcher)
                     self.copy_library_thumb(post)
                     self._app._signals.bookmark_done.emit(idx, f"Saved {i+1}/{len(posts)} to {where}")
+                    self._maybe_unbookmark(post)
                 except Exception as e:
                     log.warning(f"Bulk save #{post.id} failed: {e}")
             self._app._signals.batch_done.emit(f"Saved {len(posts)} to {where}")
@@ -374,6 +405,7 @@ class PostActionsController:
                     src = Path(await download_image(post.file_url))
                     await save_post_file(src, post, dest_dir, self._app._db, in_flight, category_fetcher=fetcher)
                     self._app._signals.batch_progress.emit(i + 1, len(posts), post.id)
+                    self._maybe_unbookmark(post)
                 except Exception as e:
                     log.warning(f"Batch #{post.id} failed: {e}")
             self._app._signals.batch_done.emit(f"Downloaded {len(posts)} images to {dest_dir}")
@@ -444,6 +476,7 @@ class PostActionsController:
                     self._app._grid.selected_index,
                     f"Saved #{post.id} to {where}",
                 )
+                self._maybe_unbookmark(post)
             except Exception as e:
                 self._app._signals.bookmark_error.emit(str(e))
 
@@ -487,6 +520,7 @@ class PostActionsController:
                     self._app._grid.selected_index,
                     f"Saved to {actual}",
                 )
+                self._maybe_unbookmark(post)
             except Exception as e:
                 self._app._signals.bookmark_error.emit(f"Save failed: {e}")
 

booru_viewer/gui/settings.py

@@ -187,6 +187,11 @@ class SettingsDialog(QDialog):
         self._infinite_scroll.setChecked(self._db.get_setting_bool("infinite_scroll"))
         form.addRow("", self._infinite_scroll)
 
+        # Unbookmark on save
+        self._unbookmark_on_save = QCheckBox("Remove bookmark when saved to library")
+        self._unbookmark_on_save.setChecked(self._db.get_setting_bool("unbookmark_on_save"))
+        form.addRow("", self._unbookmark_on_save)
+
         # Slideshow monitor
         from PySide6.QtWidgets import QApplication
         self._monitor_combo = QComboBox()
@@ -779,6 +784,7 @@ class SettingsDialog(QDialog):
         self._db.set_setting("preload_thumbnails", "1" if self._preload.isChecked() else "0")
         self._db.set_setting("prefetch_mode", self._prefetch_combo.currentText())
         self._db.set_setting("infinite_scroll", "1" if self._infinite_scroll.isChecked() else "0")
+        self._db.set_setting("unbookmark_on_save", "1" if self._unbookmark_on_save.isChecked() else "0")
         self._db.set_setting("slideshow_monitor", self._monitor_combo.currentText())
         self._db.set_setting("library_dir", self._library_dir.text().strip())
         self._db.set_setting("library_filename_template", self._library_filename_template.text().strip())