Persist cookie settings using ConfigManager

Refactored cookie settings initialization and application to use ConfigManager for persistence. Cookie source, browser, profile, file path, and active status are now saved and loaded from config, ensuring consistent behavior across sessions. Cookies remain inactive on app launch until explicitly applied by the user.

src/gui/ytsage_gui_main.py

@@ -112,9 +112,8 @@ class YTSageApp(QMainWindow, FormatTableMixin, VideoInfoMixin):  # Inherit from
         self.thumbnail_image = None
         self.video_url = ""
         self.selected_subtitles = []  # Initialize selected subtitles list
-        # Initialize cookie settings - ensure they start clean
-        self.cookie_file_path = None
-        self.browser_cookies_option = None
+        # Initialize cookie settings from saved config
+        self._initialize_cookie_settings_from_config()
         # Initialize proxy settings from config
         self.proxy_url = ConfigManager.get("proxy_url")
         self.geo_proxy_url = ConfigManager.get("geo_proxy_url")
@@ -326,6 +325,15 @@ class YTSageApp(QMainWindow, FormatTableMixin, VideoInfoMixin):  # Inherit from
         except Exception as e:
             logger.exception(f"Error playing notification sound: {e}")
 
+    def _initialize_cookie_settings_from_config(self) -> None:
+        """Initialize cookie settings - cookies are NOT auto-activated on startup.
+        User must explicitly click Apply in the dialog each session."""
+        # Cookies always start inactive on app launch
+        # User must click Apply in Custom Options dialog to activate them
+        self.cookie_file_path = None
+        self.browser_cookies_option = None
+        logger.debug("Cookie settings initialized - no cookies active (user must apply manually)")
+
     def init_ui(self) -> None:
         self.setWindowTitle(f"{_('app.title')}  {_('app.version', version=self.version)}")
         self.setMinimumSize(900, 750)