feat: add Mihomo API modules and manager (#2869)

• Introduce new API caller implementations for Mihomo in model and module layers.
• Add configuration and API integration files under /src-tauri/src/config/api and /src-tauri/src/model/api.
• Implement a singleton MihomoAPICaller with async API call support and integration tests.
• Create a new MihomoManager module to refresh and fetch proxies from the API.
• Update Cargo.lock and Cargo.toml with additional dependencies (async-trait, env_logger, mockito, tempfile, etc.) related to the Mihomo API support.

src-tauri/Cargo.toml

@@ -67,6 +67,7 @@ getrandom = "0.2"
 tokio-tungstenite = "0.26.1"
 futures = "0.3"
 sys-locale = "0.3.1"
+async-trait = "0.1.86"
 
 [target.'cfg(windows)'.dependencies]
 runas = "=1.2.0"
@@ -120,3 +121,8 @@ strip = false         # 不剥离符号，保留调试信息
 [lib]
 name = "app_lib"
 crate-type = ["staticlib", "cdylib", "rlib"]
+
+[dev-dependencies]
+env_logger = "0.11.0"
+mockito = "1.2.0"
+tempfile = "3.17.1"