feat: first cut on M0 - base structure of project

crates/bds-ui/src/app.rs

@@ -0,0 +1,48 @@
+use iced::widget::{column, container, text};
+use iced::{Element, Length, Subscription, Task};
+
+use crate::platform::menu;
+
+#[derive(Debug, Clone)]
+pub enum Message {
+    MenuEvent(muda::MenuId),
+    Noop,
+}
+
+pub struct BdsApp {
+    _menu_bar: muda::Menu,
+}
+
+impl BdsApp {
+    pub fn new() -> (Self, Task<Message>) {
+        let menu_bar = menu::build_menu_bar();
+        (Self { _menu_bar: menu_bar }, Task::none())
+    }
+
+    pub fn update(&mut self, message: Message) -> Task<Message> {
+        match message {
+            Message::MenuEvent(_id) => {
+                // Menu routing will be expanded in M2
+                Task::none()
+            }
+            Message::Noop => Task::none(),
+        }
+    }
+
+    pub fn view(&self) -> Element<'_, Message> {
+        let content = column![text("bDS — Blogging Desktop Server").size(24),]
+            .padding(20)
+            .spacing(10);
+
+        container(content)
+            .width(Length::Fill)
+            .height(Length::Fill)
+            .center_x(Length::Fill)
+            .center_y(Length::Fill)
+            .into()
+    }
+
+    pub fn subscription(&self) -> Subscription<Message> {
+        menu::menu_subscription()
+    }
+}