fix: Add defensive checks for widget connections in BCASLStudioWindow

Author: PyCompiler ARK++

bcasl/only_mod/widgets/main_window.py

@@ -169,23 +169,36 @@ def _wire_menu_from_ui(self):
         self._populate_theme_menu()
 
     def _wire_logic(self):
-        # Buttons
-        self.ws_browse.clicked.connect(self._browse_ws)
-        self.plugins_browse.clicked.connect(self._browse_plugins)
-        self.btn_load_ws.clicked.connect(self._load_workspace)
-        self.btn_save_cfg.clicked.connect(self._save_cfg)
-        self.btn_run.clicked.connect(self._run)
+        # Buttons (defensive: only connect when widgets are present)
+        try:
+            if self.ws_browse:
+                self.ws_browse.clicked.connect(self._browse_ws)
+            if self.plugins_browse:
+                self.plugins_browse.clicked.connect(self._browse_plugins)
+            if self.btn_load_ws:
+                self.btn_load_ws.clicked.connect(self._load_workspace)
+            if self.btn_save_cfg:
+                self.btn_save_cfg.clicked.connect(self._save_cfg)
+            if self.btn_run:
+                self.btn_run.clicked.connect(self._run)
+        except Exception:
+            pass
         # Filters
         try:
-            self.filter_text.textChanged.connect(lambda _=None: self._apply_filters())
-            self.filter_phase.currentIndexChanged.connect(lambda _=None: self._apply_filters())
+            if self.filter_text:
+                self.filter_text.textChanged.connect(lambda _=None: self._apply_filters())
+            if self.filter_phase:
+                self.filter_phase.currentIndexChanged.connect(lambda _=None: self._apply_filters())
         except Exception:
             pass
         # Sync compact settings with dock settings
         try:
-            self.sp_timeout2.valueChanged.connect(lambda _=None: self._sync_settings_from_compact())
-            self.chk_sandbox2.toggled.connect(lambda _=None: self._sync_settings_from_compact())
-            self.sp_parallel2.valueChanged.connect(lambda _=None: self._sync_settings_from_compact())
+            if self.sp_timeout2:
+                self.sp_timeout2.valueChanged.connect(lambda _=None: self._sync_settings_from_compact())
+            if self.chk_sandbox2:
+                self.chk_sandbox2.toggled.connect(lambda _=None: self._sync_settings_from_compact())
+            if self.sp_parallel2:
+                self.sp_parallel2.valueChanged.connect(lambda _=None: self._sync_settings_from_compact())
         except Exception:
             pass