Добавлены каркас приложения, база данных, счета, категории и операции

app/ui/main_window.py

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+import customtkinter as ctk
+
+from app.config import APP_TITLE, MIN_HEIGHT, MIN_WIDTH, WINDOW_SIZE
+from app.ui.accounts_frame import AccountsFrame
+from app.ui.budgets_frame import BudgetsFrame
+from app.ui.categories_frame import CategoriesFrame
+from app.ui.dashboard_frame import DashboardFrame
+from app.ui.reports_frame import ReportsFrame
+from app.ui.subscriptions_frame import SubscriptionsFrame
+from app.ui.transactions_frame import TransactionsFrame
+
+
+class FinanceApp(ctk.CTk):
+    def __init__(self) -> None:
+        super().__init__()
+
+        ctk.set_appearance_mode("dark")
+        ctk.set_default_color_theme("blue")
+
+        self.title(APP_TITLE)
+        self.geometry(WINDOW_SIZE)
+        self.minsize(MIN_WIDTH, MIN_HEIGHT)
+
+        self.grid_columnconfigure(1, weight=1)
+        self.grid_rowconfigure(0, weight=1)
+
+        self.sidebar = ctk.CTkFrame(self, width=240, corner_radius=0)
+        self.sidebar.grid(row=0, column=0, sticky="nsew")
+        self.sidebar.grid_rowconfigure(9, weight=1)
+
+        self.content = ctk.CTkFrame(self, fg_color="transparent")
+        self.content.grid(row=0, column=1, sticky="nsew", padx=16, pady=16)
+        self.content.grid_rowconfigure(0, weight=1)
+        self.content.grid_columnconfigure(0, weight=1)
+
+        self._build_sidebar()
+        self._build_frames()
+        self.show_frame("Главная")
+        self.refresh_all()
+
+    def _build_sidebar(self) -> None:
+        title_label = ctk.CTkLabel(
+            self.sidebar,
+            text="Finance Control",
+            font=ctk.CTkFont(size=24, weight="bold"),
+        )
+        title_label.grid(row=0, column=0, padx=20, pady=(24, 8), sticky="w")
+
+        subtitle_label = ctk.CTkLabel(
+            self.sidebar,
+            text="курсовой проект",
+            text_color="gray70",
+        )
+        subtitle_label.grid(row=1, column=0, padx=20, pady=(0, 16), sticky="w")
+
+        pages = [
+            "Главная",
+            "Счета",
+            "Категории",
+            "Операции",
+            "Подписки",
+            "Бюджеты",
+            "Отчёты",
+        ]
+
+        for index, page_name in enumerate(pages, start=2):
+            button = ctk.CTkButton(
+                self.sidebar,
+                text=page_name,
+                height=42,
+                anchor="w",
+                command=lambda name=page_name: self.show_frame(name),
+            )
+            button.grid(row=index, column=0, padx=20, pady=6, sticky="ew")
+
+        theme_label = ctk.CTkLabel(
+            self.sidebar,
+            text="Тема",
+            text_color="gray70",
+        )
+        theme_label.grid(row=10, column=0, padx=20, pady=(12, 6), sticky="w")
+
+        self.theme_menu = ctk.CTkOptionMenu(
+            self.sidebar,
+            values=["Тёмная", "Светлая", "Системная"],
+            command=self.change_theme,
+        )
+        self.theme_menu.set("Тёмная")
+        self.theme_menu.grid(row=11, column=0, padx=20, pady=(0, 20), sticky="ew")
+
+    def _build_frames(self) -> None:
+        self.frames = {
+            "Главная": DashboardFrame(self.content, self.refresh_all),
+            "Счета": AccountsFrame(self.content, self.refresh_all),
+            "Категории": CategoriesFrame(self.content, self.refresh_all),
+            "Операции": TransactionsFrame(self.content, self.refresh_all),
+            "Подписки": SubscriptionsFrame(self.content, self.refresh_all),
+            "Бюджеты": BudgetsFrame(self.content, self.refresh_all),
+            "Отчёты": ReportsFrame(self.content, self.refresh_all),
+        }
+
+        for frame in self.frames.values():
+            frame.grid(row=0, column=0, sticky="nsew")
+
+    def show_frame(self, name: str) -> None:
+        frame = self.frames[name]
+        if hasattr(frame, "refresh_data"):
+            frame.refresh_data()
+        frame.tkraise()
+
+    def refresh_all(self) -> None:
+        for frame in self.frames.values():
+            if hasattr(frame, "refresh_data"):
+                frame.refresh_data()
+
+    @staticmethod
+    def change_theme(theme_name: str) -> None:
+        theme_map = {
+            "Тёмная": "dark",
+            "Светлая": "light",
+            "Системная": "system",
+        }
+        ctk.set_appearance_mode(theme_map[theme_name])