feat(ai-studio): add main workspace tab

app/gui/main_window.py

@@ -7,6 +7,7 @@ from .tabs.accounts import AccountsTab
 from .tabs.apply import ApplyTab
 from .tabs.collect import CollectTab
 from .tabs.generate import GenerateTab
+from .tabs.image_studio import ImageStudioTab
 from .tabs.settings import SettingsTab
 from .widgets import *
 
@@ -72,7 +73,7 @@ def _fit_and_center_window(
 
 
 class MainWindow(QMainWindow):
-    """Main application window with the fixed five-tab workflow."""
+    """Main application window with the fixed workflow tabs."""
 
     def __init__(
         self,
@@ -158,11 +159,19 @@ class MainWindow(QMainWindow):
                 config=self.config,
                 status_callback=self.show_status,
             )
-        return SettingsTab(
+        if title == "⑤ 设置":
+            return SettingsTab(
+                config=self.config,
+                config_path=self.config_path,
+                ai_models_path=self.ai_models_path,
+                status_callback=self.show_status,
+            )
+        return ImageStudioTab(
+            db_path=self.db_path,
             config=self.config,
             config_path=self.config_path,
-            ai_models_path=self.ai_models_path,
             status_callback=self.show_status,
+            prompts_dir=appconfig.image_studio_prompts_dir(self.config),
         )
 
     def refresh_task_tabs(self):