style: enforce consistent codestyle via ruff config and auto-fixes

- Configure ruff: isort, pyupgrade, bugbear, flake8 rules
- Auto-fix import sorting, redundant parens, exception chaining
- Remove from __future__ import annotations (Python 3.13+)
- Convert debug print() to logger calls
- Fix typo applicaiton → application in icon_resolver
- Remove bare returns in animator setters
- Move TYPE_CHECKING imports to runtime where used at runtime

src/window/panel/components/custom_mods.py

@@ -1,8 +1,7 @@
 from pathlib import Path
 
 import tomlkit
-
-from fabric.utils import GLib, Gio, logger
+from fabric.utils import Gio, GLib, logger
 from fabric.widgets.box import Box
 from fabric.widgets.button import Button
 from fabric.widgets.label import Label

src/window/panel/components/enhanced_system_tray.py

@@ -1,5 +1,5 @@
-from pathlib import Path
 import weakref
+from pathlib import Path
 
 from fabric.system_tray.widgets import SystemTrayItem
 from fabric.utils import GdkPixbuf, GLib, logger

src/window/panel/components/globalmenu.py

@@ -5,9 +5,9 @@ from fabric.widgets.button import Button
 from fabric.widgets.centerbox import CenterBox
 from fabric.widgets.label import Label
 
+from globalmenu.service import get_global_menu_service
 from shared.dialogs.about import AboutApp, get_about_window
 from shared.window.dropdown import ModusDropdown, dropdown_divider, dropdowns
-from globalmenu.service import get_global_menu_service
 from utils.app_name_resolver import format_window
 from utils.roam import modus_service
 from utils.utils import setup_cursor_hover

src/window/panel/components/indicators.py

@@ -435,7 +435,7 @@ class BatteryIndicator(Box):
 
     def update_state(self):
         if not self._is_present():
-            print("[Battery] No battery detected, hiding indicator")
+            logger.warning("No battery detected, hiding indicator")
             self.hide()
             return
         else:

src/window/panel/components/todo.py

@@ -5,9 +5,9 @@ from fabric.widgets.box import Box
 from fabric.widgets.button import Button
 from fabric.widgets.entry import Entry
 from fabric.widgets.label import Label
-from shared.window.animated_scrollwindow import AnimatedScrollable
-from services.todo import get_todo_service
 
+from services.todo import get_todo_service
+from shared.window.animated_scrollwindow import AnimatedScrollable
 from shared.window.applet_window import AppletWindow
 from utils.utils import svg_file
 
@@ -364,11 +364,11 @@ class TodoListWidget(AppletWindow):
 
     def _on_todo_event(self, event_type, data=None):
         """Handle todo service events via callback"""
-        if event_type == "todos-changed":
-            GLib.idle_add(self._refresh_todos)
-        elif event_type == "todo-added":
-            GLib.idle_add(self._refresh_todos)
-        elif event_type == "todo-deleted":
+        if (
+            event_type == "todos-changed"
+            or event_type == "todo-added"
+            or event_type == "todo-deleted"
+        ):
             GLib.idle_add(self._refresh_todos)
         elif event_type in ["todo-toggled", "todo-edited", "todo-priority-changed"]:
             if data and data["id"] in self.todo_items:

src/window/panel/main.py

@@ -43,7 +43,7 @@ class Panel(Window):
         self.imac = Button(
             name="panel-button",
             child=svg_file("misc/logo.svg", size=18),
-            on_clicked=lambda *_: self.globalmenu.show_system_dropdown((self.imac)),
+            on_clicked=lambda *_: self.globalmenu.show_system_dropdown(self.imac),
         )
         setup_cursor_hover(self.imac, "pointer")
         self.globalmenu.set_imac_button(self.imac)
@@ -313,7 +313,7 @@ class Panel(Window):
         self.queue_resize()
 
     def _on_config_changed(self, new_config, old_config):
-        print("[Panel] Config changed, checking keys...")
+        logger.debug("Config changed, checking keys...")
         keys = {
             "imac_button",
             "global_menu",
@@ -330,7 +330,7 @@ class Panel(Window):
         }
         changed_keys = [k for k in keys if new_config.get(k) != old_config.get(k)]
         if changed_keys:
-            print(f"[Panel] Rebuilding due to changes in: {changed_keys}")
+            logger.debug(f"Rebuilding due to changes in: {changed_keys}")
             self._rebuild_layout_from_config(new_config)
 
         self._update_tray_visibility()

src/window/panel/notch/__init__.py

@@ -1,8 +1,8 @@
-from window.panel.notch.notch import Notch
 from window.panel.notch.indicators import (
     CapsLockIndicator,
     KeyboardLayoutIndicator,
     NumLockIndicator,
 )
+from window.panel.notch.notch import Notch
 
-__all__ = ["Notch", "CapsLockIndicator", "KeyboardLayoutIndicator", "NumLockIndicator"]
+__all__ = ["CapsLockIndicator", "KeyboardLayoutIndicator", "Notch", "NumLockIndicator"]

src/window/panel/notch/notch.py

@@ -1,19 +1,20 @@
-from fabric.utils import Gdk, Gtk, GLib
+from fabric.utils import Gdk, GLib, Gtk
 from fabric.widgets.box import Box
 from fabric.widgets.centerbox import CenterBox
 from fabric.widgets.shapes import Corner
 from fabric.widgets.stack import Stack
+
 from services.screencapture import screen_capture_service
-from window.panel.notch.recording import RecordingIndicator
-from window.panel.notch.player import NotchPlayer
+from window.controlcenter.player import get_shared_mpris_manager
 from window.panel.notch.indicators import (
     CapsLockIndicator,
+    ChargingIndicator,
     KeyboardLayoutIndicator,
     MicrophoneIndicator,
     NumLockIndicator,
-    ChargingIndicator,
 )
-from window.controlcenter.player import get_shared_mpris_manager
+from window.panel.notch.player import NotchPlayer
+from window.panel.notch.recording import RecordingIndicator
 
 
 class Notch(Box):

src/window/panel/notch/player.py

@@ -2,7 +2,7 @@ import math
 import os
 import time
 
-from fabric.utils import GLib, Gtk, GdkPixbuf
+from fabric.utils import GdkPixbuf, GLib, Gtk
 from fabric.widgets.box import Box
 from fabric.widgets.centerbox import CenterBox