Add new feature config via TOML

src/back_end/Cargo.toml

@@ -7,4 +7,7 @@ edition = "2024"
 crate-type = ["staticlib", "lib"]
 
 [dependencies]
+dirs = "6.0.0"
+serde = { version = "1.0.219", features = ["derive"] }
+toml = "0.9.5"
 webbrowser = "1.0.5"

src/back_end/src/internal/app_config.rs

@@ -0,0 +1,24 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Deserialize, Serialize)]
+pub struct AppSettings {
+    pub hide_when_closed: bool,
+    pub notification: bool,
+}
+
+#[derive(Deserialize, Serialize)]
+pub struct AppConfig {
+    pub app_settings: AppSettings,
+}
+
+#[must_use]
+pub const fn get_default_config() -> AppConfig {
+    let settings = AppSettings {
+        hide_when_closed: false,
+        notification: false,
+    };
+
+    AppConfig {
+        app_settings: settings,
+    }
+}

src/back_end/src/lib.rs

@@ -5,3 +5,7 @@ pub mod utils {
     pub mod fs_utils;
     pub mod memory;
 }
+
+pub mod internal {
+    pub mod app_config;
+}