feat: move background processes to its own daemon

src-tauri/Cargo.toml

@@ -24,6 +24,10 @@ path = "src/main.rs"
 name = "donut-proxy"
 path = "src/bin/proxy_server.rs"
 
+[[bin]]
+name = "donut-daemon"
+path = "src/bin/donut_daemon.rs"
+
 [build-dependencies]
 tauri-build = { version = "2", features = [] }
 
@@ -65,7 +69,7 @@ mime_guess = "2"
 once_cell = "1"
 urlencoding = "2.1"
 chrono = { version = "0.4", features = ["serde"] }
-axum = "0.8.8"
+axum = { version = "0.8.8", features = ["ws"] }
 tower = "0.5"
 tower-http = { version = "0.6", features = ["cors"] }
 rand = "0.9.2"
@@ -92,6 +96,15 @@ tempfile = "3"
 maxminddb = "0.24"
 quick-xml = { version = "0.37", features = ["serialize"] }
 
+# Daemon dependencies (tray icon)
+tray-icon = "0.19"
+muda = "0.15"
+tao = "0.34"
+single-instance = "0.3"
+image = "0.25"
+dirs = "6"
+crossbeam-channel = "0.5"
+
 [target."cfg(any(target_os = \"macos\", windows, target_os = \"linux\"))".dependencies]
 tauri-plugin-single-instance = { version = "2", features = ["deep-link"] }
 
@@ -101,7 +114,7 @@ nix = { version = "0.29", features = ["signal", "process"] }
 [target.'cfg(target_os = "macos")'.dependencies]
 core-foundation = "0.10"
 objc2 = "0.6.1"
-objc2-app-kit = { version = "0.3.1", features = ["NSWindow"] }
+objc2-app-kit = { version = "0.3.1", features = ["NSWindow", "NSApplication", "NSRunningApplication"] }
 
 [target.'cfg(target_os = "windows")'.dependencies]
 winreg = "0.55"