feat: add compression support and fix tun config overwrite issue

src-tauri/Cargo.lock

@@ -256,6 +256,22 @@ dependencies = [
  "pin-project-lite",
 ]
 
+[[package]]
+name = "async-compression"
+version = "0.4.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ddb939d66e4ae03cee6091612804ba446b12878410cfa17f785f4dd67d4014e8"
+dependencies = [
+ "brotli",
+ "flate2",
+ "futures-core",
+ "memchr",
+ "pin-project-lite",
+ "tokio",
+ "zstd",
+ "zstd-safe",
+]
+
 [[package]]
 name = "async-executor"
 version = "1.13.2"
@@ -5853,6 +5869,7 @@ version = "0.12.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "eabf4c97d9130e2bf606614eb937e86edac8292eaa6f422f995d7e8de1eb1813"
 dependencies = [
+ "async-compression",
  "base64 0.22.1",
  "bytes",
  "cookie",

src-tauri/Cargo.toml

@@ -45,7 +45,7 @@ tokio = { version = "1.45.1", features = [
   "sync",
 ] }
 serde = { version = "1.0.219", features = ["derive"] }
-reqwest = { version = "0.12.20", features = ["json", "rustls-tls", "cookies"] }
+reqwest = { version = "0.12.20", features = ["json", "rustls-tls", "cookies", "brotli", "gzip", "zstd"] }
 regex = "1.11.1"
 sysproxy = { git = "https://github.com/clash-verge-rev/sysproxy-rs" }
 image = "0.25.6"

src-tauri/src/enhance/mod.rs

@@ -202,7 +202,9 @@ pub async fn enhance() -> (Mapping, Vec<String>, HashMap<String, ResultLog>) {
             });
             let patch_tun = value.as_mapping().cloned().unwrap_or(Mapping::new());
             for (key, value) in patch_tun.into_iter() {
-                tun.insert(key, value);
+                if !tun.contains_key(&key) {
+                    tun.insert(key, value);
+                }
             }
             config.insert("tun".into(), tun.into());
         } else {