Initial project scaffold: Rust egui ePub reader

- Cargo.toml with eframe, egui, epub, rfd, serde dependencies
- Source modules: app, book, font, persistence, reader, theme
- MinGW static linking config
- .gitignore for build artifacts

.cargo/config.toml

@@ -0,0 +1,2 @@
+[target.x86_64-pc-windows-gnu]
+rustflags = ["-C", "target-feature=+crt-static"]

.gitignore

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+/target/

Cargo.toml

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+[package]
+name = "epub-read"
+version = "0.1.0"
+edition = "2021"
+description = "ePub reader with egui"
+
+[[bin]]
+name = "epub-read"
+path = "src/main.rs"
+
+[dependencies]
+eframe = "0.31"
+egui = "0.31"
+epub = "1.2"
+rfd = "0.15"
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+
+[profile.release]
+opt-level = "z"
+lto = true
+codegen-units = 1
+strip = "symbols"

src/app.rs

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+pub struct App;
+
+impl App {
+    pub fn new(_cc: &eframe::CreationContext) -> Self {
+        Self
+    }
+}
+
+impl eframe::App for App {
+    fn update(&mut self, _ctx: &egui::Context, _frame: &mut eframe::Frame) {}
+}

src/font.rs

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+pub fn setup_fonts(_ctx: &egui::Context) {}

src/main.rs

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+#![windows_subsystem = "windows"]
+
+mod app;
+mod book;
+mod font;
+mod persistence;
+mod reader;
+mod theme;
+
+fn main() -> eframe::Result {
+    let native_options = eframe::NativeOptions {
+        viewport: eframe::egui::ViewportBuilder::default()
+            .with_inner_size([900.0, 700.0])
+            .with_min_inner_size([600.0, 400.0]),
+        ..Default::default()
+    };
+    eframe::run_native(
+        "ePub Reader",
+        native_options,
+        Box::new(|cc| {
+            font::setup_fonts(&cc.egui_ctx);
+            Ok(Box::new(app::App::new(cc)))
+        }),
+    )
+}