fix: 修复 Rust lint 警告

修复了以下 clippy 警告：
- 移除未使用的 imports
- 修复未使用的变量（添加 _ 前缀）
- 移除不必要的 mut 关键字
- 为未使用的函数添加 #[allow(dead_code)] 注解
- 使用新的格式化字符串语法（uninlined_format_args）

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.claude/settings.local.json

@@ -11,7 +11,8 @@
       "Bash(tree:*)",
       "Bash(find:*)",
       "Bash(cargo check:*)",
-      "Bash(rm:*)"
+      "Bash(rm:*)",
+      "Bash(cargo clippy:*)"
     ],
     "deny": [],
     "ask": []

src-tauri/Cargo.lock

@@ -2873,7 +2873,7 @@ dependencies = [
 
 [[package]]
 name = "proxycast"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
  "async-stream",
  "axum",

src-tauri/src/commands/config_cmd.rs

@@ -61,7 +61,7 @@ pub fn get_config_dir_path(app_type: String) -> Result<String, String> {
 }
 
 #[tauri::command]
-pub async fn open_config_folder(handle: AppHandle, app_type: String) -> Result<bool, String> {
+pub async fn open_config_folder(_handle: AppHandle, app_type: String) -> Result<bool, String> {
     let app = app_type.parse::<AppType>().map_err(|e| e.to_string())?;
     let config_dir = get_config_dir(&app).ok_or("Cannot determine config directory")?;
 
@@ -175,7 +175,7 @@ pub async fn get_auto_launch_status(app: AppHandle) -> Result<bool, String> {
     let autostart_manager = app.autolaunch();
     autostart_manager
         .is_enabled()
-        .map_err(|e| format!("Failed to get autostart status: {}", e))
+        .map_err(|e| format!("Failed to get autostart status: {e}"))
 }
 
 #[tauri::command]
@@ -185,11 +185,11 @@ pub async fn set_auto_launch(app: AppHandle, enabled: bool) -> Result<bool, Stri
     if enabled {
         autostart_manager
             .enable()
-            .map_err(|e| format!("Failed to enable autostart: {}", e))?;
+            .map_err(|e| format!("Failed to enable autostart: {e}"))?;
     } else {
         autostart_manager
             .disable()
-            .map_err(|e| format!("Failed to disable autostart: {}", e))?;
+            .map_err(|e| format!("Failed to disable autostart: {e}"))?;
     }
 
     Ok(enabled)

src-tauri/src/commands/oauth_cmd.rs

@@ -25,7 +25,7 @@ impl OAuthProvider {
             "kiro" => Ok(OAuthProvider::Kiro),
             "gemini" => Ok(OAuthProvider::Gemini),
             "qwen" => Ok(OAuthProvider::Qwen),
-            _ => Err(format!("Unknown provider: {}", s)),
+            _ => Err(format!("Unknown provider: {s}")),
         }
     }
 
@@ -399,9 +399,10 @@ pub async fn check_and_reload_oauth_credentials(
 
         match result {
             Ok(_) => {
-                logs.write()
-                    .await
-                    .add("info", &format!("[{display_name}][自动检测] 凭证重新加载成功"));
+                logs.write().await.add(
+                    "info",
+                    &format!("[{display_name}][自动检测] 凭证重新加载成功"),
+                );
                 Ok(CheckResult {
                     changed: true,
                     new_hash,

src-tauri/src/commands/prompt_cmd.rs

@@ -42,30 +42,19 @@ pub fn update_prompt(db: State<'_, DbConnection>, prompt: Prompt) -> Result<(),
 
 /// Delete a prompt
 #[tauri::command]
-pub fn delete_prompt(
-    db: State<'_, DbConnection>,
-    app: String,
-    id: String,
-) -> Result<(), String> {
+pub fn delete_prompt(db: State<'_, DbConnection>, app: String, id: String) -> Result<(), String> {
     PromptService::delete(&db, &app, &id)
 }
 
 /// Enable a prompt and sync to live file
 #[tauri::command]
-pub fn enable_prompt(
-    db: State<'_, DbConnection>,
-    app: String,
-    id: String,
-) -> Result<(), String> {
+pub fn enable_prompt(db: State<'_, DbConnection>, app: String, id: String) -> Result<(), String> {
     PromptService::enable(&db, &app, &id)
 }
 
 /// Import prompt from live file
 #[tauri::command]
-pub fn import_prompt_from_file(
-    db: State<'_, DbConnection>,
-    app: String,
-) -> Result<String, String> {
+pub fn import_prompt_from_file(db: State<'_, DbConnection>, app: String) -> Result<String, String> {
     PromptService::import_from_file(&db, &app)
 }
 

src-tauri/src/database/dao/mcp.rs

@@ -90,13 +90,12 @@ impl McpDao {
             "gemini" => "enabled_gemini",
             _ => {
                 return Err(rusqlite::Error::InvalidParameterName(format!(
-                    "Invalid app_type: {}",
-                    app_type
+                    "Invalid app_type: {app_type}"
                 )))
             }
         };
 
-        let sql = format!("UPDATE mcp_servers SET {} = ? WHERE id = ?", column);
+        let sql = format!("UPDATE mcp_servers SET {column} = ? WHERE id = ?");
         conn.execute(&sql, params![if enabled { 1 } else { 0 }, id])?;
         Ok(())
     }

src-tauri/src/database/dao/mod.rs

@@ -1,7 +1,3 @@
 pub mod mcp;
 pub mod prompts;
 pub mod providers;
-
-pub use mcp::McpDao;
-pub use prompts::PromptDao;
-pub use providers::ProviderDao;

src-tauri/src/database/dao/prompts.rs

@@ -167,7 +167,10 @@ impl PromptDao {
 
     /// Disable all prompts for an app type
     pub fn disable_all(conn: &Connection, app_type: &str) -> Result<(), rusqlite::Error> {
-        conn.execute("UPDATE prompts SET enabled = 0 WHERE app_type = ?", [app_type])?;
+        conn.execute(
+            "UPDATE prompts SET enabled = 0 WHERE app_type = ?",
+            [app_type],
+        )?;
         Ok(())
     }
 
@@ -184,6 +187,7 @@ impl PromptDao {
     }
 
     // Legacy method for compatibility
+    #[allow(dead_code)]
     pub fn set_current(conn: &Connection, app_type: &str, id: &str) -> Result<(), rusqlite::Error> {
         Self::enable(conn, app_type, id)
     }

src-tauri/src/database/migration.rs

@@ -1,8 +1,8 @@
 use rusqlite::Connection;
 use serde_json::Value;
-use std::path::PathBuf;
 
 /// 从旧的 JSON 配置迁移数据到 SQLite
+#[allow(dead_code)]
 pub fn migrate_from_json(
     conn: &Connection,
 ) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
@@ -26,7 +26,7 @@ pub fn migrate_from_json(
 
     if config_path.exists() {
         let content = std::fs::read_to_string(&config_path)?;
-        let config: Value = serde_json::from_str(&content)?;
+        let _config: Value = serde_json::from_str(&content)?;
 
         // TODO: 解析旧配置并插入到数据库
         // 这里需要根据实际的旧配置格式来实现

src-tauri/src/database/schema.rs

@@ -53,7 +53,10 @@ pub fn create_tables(conn: &Connection) -> Result<(), rusqlite::Error> {
     )?;
 
     // Migration: rename is_current to enabled if old column exists
-    let _ = conn.execute("ALTER TABLE prompts RENAME COLUMN is_current TO enabled", []);
+    let _ = conn.execute(
+        "ALTER TABLE prompts RENAME COLUMN is_current TO enabled",
+        [],
+    );
 
     // Migration: add updated_at column if it doesn't exist
     let _ = conn.execute("ALTER TABLE prompts ADD COLUMN updated_at INTEGER", []);

src-tauri/src/models/app_type.rs

@@ -29,7 +29,7 @@ impl std::str::FromStr for AppType {
             "claude" => Ok(AppType::Claude),
             "codex" => Ok(AppType::Codex),
             "gemini" => Ok(AppType::Gemini),
-            _ => Err(format!("Invalid app type: {}", s)),
+            _ => Err(format!("Invalid app type: {s}")),
         }
     }
 }

src-tauri/src/models/mcp_model.rs

@@ -21,6 +21,7 @@ pub struct McpServer {
 }
 
 impl McpServer {
+    #[allow(dead_code)]
     pub fn new(id: String, name: String, server_config: Value) -> Self {
         Self {
             id,

src-tauri/src/models/prompt_model.rs

@@ -18,6 +18,7 @@ pub struct Prompt {
 }
 
 impl Prompt {
+    #[allow(dead_code)]
     pub fn new(id: String, app_type: String, name: String, content: String) -> Self {
         let now = chrono::Utc::now().timestamp();
         Self {

src-tauri/src/models/provider_model.rs

@@ -24,6 +24,7 @@ pub struct Provider {
 }
 
 impl Provider {
+    #[allow(dead_code)]
     pub fn new(id: String, app_type: String, name: String, settings_config: Value) -> Self {
         Self {
             id,

src-tauri/src/services/live_sync.rs

@@ -46,7 +46,11 @@ fn sync_claude_settings(
     };
 
     // Merge env variables into settings
-    if let Some(env_obj) = provider.settings_config.get("env").and_then(|v| v.as_object()) {
+    if let Some(env_obj) = provider
+        .settings_config
+        .get("env")
+        .and_then(|v| v.as_object())
+    {
         let settings_obj = settings.as_object_mut().ok_or("Invalid settings format")?;
 
         // Ensure env object exists
@@ -72,9 +76,7 @@ fn sync_claude_settings(
 }
 
 /// Sync Codex config to ~/.codex/auth.json and ~/.codex/config.toml
-fn sync_codex_config(
-    provider: &Provider,
-) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
+fn sync_codex_config(provider: &Provider) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
     let home = dirs::home_dir().ok_or("Cannot find home directory")?;
     let codex_dir = home.join(".codex");
 
@@ -100,9 +102,7 @@ fn sync_codex_config(
 }
 
 /// Sync Gemini config to ~/.gemini/.env and ~/.gemini/settings.json
-fn sync_gemini_config(
-    provider: &Provider,
-) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
+fn sync_gemini_config(provider: &Provider) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
     let home = dirs::home_dir().ok_or("Cannot find home directory")?;
     let gemini_dir = home.join(".gemini");
 
@@ -110,7 +110,11 @@ fn sync_gemini_config(
     std::fs::create_dir_all(&gemini_dir)?;
 
     // Write .env file
-    if let Some(env_obj) = provider.settings_config.get("env").and_then(|v| v.as_object()) {
+    if let Some(env_obj) = provider
+        .settings_config
+        .get("env")
+        .and_then(|v| v.as_object())
+    {
         let env_path = gemini_dir.join(".env");
         let mut content = String::new();
 
@@ -118,7 +122,7 @@ fn sync_gemini_config(
             if let Some(val) = value.as_str() {
                 // Only write non-empty values
                 if !val.is_empty() {
-                    content.push_str(&format!("{}={}\n", key, val));
+                    content.push_str(&format!("{key}={val}\n"));
                 }
             }
         }
@@ -157,7 +161,9 @@ fn sync_gemini_config(
 }
 
 /// Read current live settings for an app type
-pub fn read_live_settings(app_type: &AppType) -> Result<Value, Box<dyn std::error::Error + Send + Sync>> {
+pub fn read_live_settings(
+    app_type: &AppType,
+) -> Result<Value, Box<dyn std::error::Error + Send + Sync>> {
     let home = dirs::home_dir().ok_or("Cannot find home directory")?;
 
     match app_type {

src-tauri/src/services/mcp_service.rs

@@ -56,7 +56,7 @@ impl McpService {
         let servers = McpDao::get_all(&conn).map_err(|e| e.to_string())?;
         let server = servers.iter().find(|s| s.id == id);
 
-        if let Some(server) = server {
+        if let Some(_server) = server {
             let app = app_type.parse::<AppType>().map_err(|e| e.to_string())?;
             if enabled {
                 // Sync server to the app

src-tauri/src/services/mcp_sync.rs

@@ -108,14 +108,14 @@ fn sync_mcp_to_codex(
     std::fs::create_dir_all(&codex_dir)?;
 
     // Read existing config
-    let mut existing_content = if config_path.exists() {
+    let existing_content = if config_path.exists() {
         std::fs::read_to_string(&config_path)?
     } else {
         String::new()
     };
 
     // Remove existing [mcp_servers.*] sections
-    let mut lines: Vec<&str> = existing_content.lines().collect();
+    let lines: Vec<&str> = existing_content.lines().collect();
     let mut new_lines: Vec<String> = Vec::new();
     let mut in_mcp_section = false;
 
@@ -141,14 +141,14 @@ fn sync_mcp_to_codex(
         if let Some(config) = server.server_config.as_object() {
             // Convert JSON config to TOML format
             if let Some(command) = config.get("command").and_then(|v| v.as_str()) {
-                new_lines.push(format!("command = \"{}\"", command));
+                new_lines.push(format!("command = \"{command}\""));
             }
 
             if let Some(args) = config.get("args").and_then(|v| v.as_array()) {
                 let args_str: Vec<String> = args
                     .iter()
                     .filter_map(|a| a.as_str())
-                    .map(|s| format!("\"{}\"", s))
+                    .map(|s| format!("\"{s}\""))
                     .collect();
                 new_lines.push(format!("args = [{}]", args_str.join(", ")));
             }
@@ -157,7 +157,7 @@ fn sync_mcp_to_codex(
                 new_lines.push("[mcp_servers.".to_string() + &server.name + ".env]");
                 for (key, value) in env {
                     if let Some(val) = value.as_str() {
-                        new_lines.push(format!("{} = \"{}\"", key, val));
+                        new_lines.push(format!("{key} = \"{val}\""));
                     }
                 }
             }
@@ -224,9 +224,7 @@ pub fn remove_mcp_from_app(
     }
 }
 
-fn remove_mcp_from_claude(
-    server_id: &str,
-) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
+fn remove_mcp_from_claude(server_id: &str) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
     let home = dirs::home_dir().ok_or("Cannot find home directory")?;
     let config_path = home.join(".claude").join("settings.json");
 
@@ -251,9 +249,7 @@ fn remove_mcp_from_claude(
     Ok(())
 }
 
-fn remove_mcp_from_codex(
-    server_id: &str,
-) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
+fn remove_mcp_from_codex(server_id: &str) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
     let home = dirs::home_dir().ok_or("Cannot find home directory")?;
     let config_path = home.join(".codex").join("config.toml");
 
@@ -262,10 +258,10 @@ fn remove_mcp_from_codex(
     }
 
     let content = std::fs::read_to_string(&config_path)?;
-    let mut lines: Vec<&str> = content.lines().collect();
+    let lines: Vec<&str> = content.lines().collect();
     let mut new_lines: Vec<String> = Vec::new();
-    let section_header = format!("[mcp_servers.{}]", server_id);
-    let env_header = format!("[mcp_servers.{}.env]", server_id);
+    let section_header = format!("[mcp_servers.{server_id}]");
+    let env_header = format!("[mcp_servers.{server_id}.env]");
     let mut skip_section = false;
 
     for line in &lines {
@@ -293,9 +289,7 @@ fn remove_mcp_from_codex(
     Ok(())
 }
 
-fn remove_mcp_from_gemini(
-    server_id: &str,
-) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
+fn remove_mcp_from_gemini(server_id: &str) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
     let home = dirs::home_dir().ok_or("Cannot find home directory")?;
     let settings_path = home.join(".gemini").join("settings.json");
 
@@ -331,7 +325,8 @@ pub fn remove_mcp_from_all_apps(
 }
 
 /// Import MCP servers from Claude's settings.json
-pub fn import_mcp_from_claude() -> Result<Vec<crate::models::McpServer>, Box<dyn std::error::Error + Send + Sync>> {
+pub fn import_mcp_from_claude(
+) -> Result<Vec<crate::models::McpServer>, Box<dyn std::error::Error + Send + Sync>> {
     let home = dirs::home_dir().ok_or("Cannot find home directory")?;
     let config_path = home.join(".claude").join("settings.json");
 
@@ -365,7 +360,8 @@ pub fn import_mcp_from_claude() -> Result<Vec<crate::models::McpServer>, Box<dyn
 }
 
 /// Import MCP servers from Codex's config.toml
-pub fn import_mcp_from_codex() -> Result<Vec<crate::models::McpServer>, Box<dyn std::error::Error + Send + Sync>> {
+pub fn import_mcp_from_codex(
+) -> Result<Vec<crate::models::McpServer>, Box<dyn std::error::Error + Send + Sync>> {
     let home = dirs::home_dir().ok_or("Cannot find home directory")?;
     let config_path = home.join(".codex").join("config.toml");
 
@@ -490,7 +486,8 @@ pub fn import_mcp_from_codex() -> Result<Vec<crate::models::McpServer>, Box<dyn
 }
 
 /// Import MCP servers from Gemini's settings.json
-pub fn import_mcp_from_gemini() -> Result<Vec<crate::models::McpServer>, Box<dyn std::error::Error + Send + Sync>> {
+pub fn import_mcp_from_gemini(
+) -> Result<Vec<crate::models::McpServer>, Box<dyn std::error::Error + Send + Sync>> {
     let home = dirs::home_dir().ok_or("Cannot find home directory")?;
     let settings_path = home.join(".gemini").join("settings.json");
 

src-tauri/src/services/mod.rs

@@ -1,6 +1,6 @@
-pub mod switch;
 pub mod live_sync;
 pub mod mcp_service;
 pub mod mcp_sync;
 pub mod prompt_service;
 pub mod prompt_sync;
+pub mod switch;

src-tauri/src/services/prompt_service.rs

@@ -14,7 +14,10 @@ impl PromptService {
     }
 
     /// Get all prompts as a HashMap (for frontend)
-    pub fn get_all_map(db: &DbConnection, app_type: &str) -> Result<HashMap<String, Prompt>, String> {
+    pub fn get_all_map(
+        db: &DbConnection,
+        app_type: &str,
+    ) -> Result<HashMap<String, Prompt>, String> {
         let conn = db.lock().map_err(|e| e.to_string())?;
         PromptDao::get_all_map(&conn, app_type).map_err(|e| e.to_string())
     }
@@ -48,7 +51,10 @@ impl PromptService {
 
         // If this prompt is enabled, sync to live file
         if prompt.enabled {
-            let app = prompt.app_type.parse::<AppType>().map_err(|e| e.to_string())?;
+            let app = prompt
+                .app_type
+                .parse::<AppType>()
+                .map_err(|e| e.to_string())?;
             prompt_sync::write_live_prompt(&app, &prompt.content)?;
         }
 
@@ -95,13 +101,15 @@ impl PromptService {
                 } else {
                     // No enabled prompt, check if we should create a backup
                     let prompts = PromptDao::get_all(&conn, app_type).map_err(|e| e.to_string())?;
-                    let content_exists = prompts.iter().any(|p| p.content.trim() == live_content.trim());
+                    let content_exists = prompts
+                        .iter()
+                        .any(|p| p.content.trim() == live_content.trim());
 
                     if !content_exists {
                         // Create a backup prompt
                         let timestamp = chrono::Utc::now().timestamp();
                         let backup = Prompt {
-                            id: format!("backup-{}", timestamp),
+                            id: format!("backup-{timestamp}"),
                             app_type: app_type.to_string(),
                             name: format!(
                                 "Original Prompt {}",
@@ -157,7 +165,7 @@ impl PromptService {
         }
 
         let timestamp = chrono::Utc::now().timestamp();
-        let id = format!("imported-{}", timestamp);
+        let id = format!("imported-{timestamp}");
 
         let prompt = Prompt {
             id: id.clone(),
@@ -206,7 +214,7 @@ impl PromptService {
 
         let timestamp = chrono::Utc::now().timestamp();
         let prompt = Prompt {
-            id: format!("auto-imported-{}", timestamp),
+            id: format!("auto-imported-{timestamp}"),
             app_type: app_type.to_string(),
             name: format!(
                 "Auto-imported {}",

src-tauri/src/services/prompt_sync.rs

@@ -36,8 +36,8 @@ pub fn read_live_prompt(app: &AppType) -> Result<Option<String>, String> {
     }
 
     fs::read_to_string(&path)
-        .map(|c| Some(c))
-        .map_err(|e| format!("Failed to read prompt file: {}", e))
+        .map(Some)
+        .map_err(|e| format!("Failed to read prompt file: {e}"))
 }
 
 /// Write content to the live prompt file (atomic write)
@@ -46,22 +46,22 @@ pub fn write_live_prompt(app: &AppType, content: &str) -> Result<(), String> {
 
     // Ensure parent directory exists
     if let Some(parent) = path.parent() {
-        fs::create_dir_all(parent).map_err(|e| format!("Failed to create directory: {}", e))?;
+        fs::create_dir_all(parent).map_err(|e| format!("Failed to create directory: {e}"))?;
     }
 
     // Atomic write: write to temp file first, then rename
     let temp_path = path.with_extension("md.tmp");
 
     let mut file =
-        fs::File::create(&temp_path).map_err(|e| format!("Failed to create temp file: {}", e))?;
+        fs::File::create(&temp_path).map_err(|e| format!("Failed to create temp file: {e}"))?;
 
     file.write_all(content.as_bytes())
-        .map_err(|e| format!("Failed to write content: {}", e))?;
+        .map_err(|e| format!("Failed to write content: {e}"))?;
 
     file.sync_all()
-        .map_err(|e| format!("Failed to sync file: {}", e))?;
+        .map_err(|e| format!("Failed to sync file: {e}"))?;
 
-    fs::rename(&temp_path, &path).map_err(|e| format!("Failed to rename file: {}", e))?;
+    fs::rename(&temp_path, &path).map_err(|e| format!("Failed to rename file: {e}"))?;
 
     Ok(())
 }
@@ -71,7 +71,7 @@ pub fn delete_live_prompt(app: &AppType) -> Result<(), String> {
     let path = get_prompt_file_path(app).ok_or("Cannot determine prompt file path")?;
 
     if path.exists() {
-        fs::remove_file(&path).map_err(|e| format!("Failed to delete prompt file: {}", e))?;
+        fs::remove_file(&path).map_err(|e| format!("Failed to delete prompt file: {e}"))?;
     }
 
     Ok(())

src-tauri/src/services/switch.rs

@@ -23,7 +23,8 @@ impl SwitchService {
         let conn = db.lock().map_err(|e| e.to_string())?;
 
         // Check if this is the first provider for this app type
-        let existing = ProviderDao::get_all(&conn, &provider.app_type).map_err(|e| e.to_string())?;
+        let existing =
+            ProviderDao::get_all(&conn, &provider.app_type).map_err(|e| e.to_string())?;
         let is_first = existing.is_empty();
 
         ProviderDao::insert(&conn, &provider).map_err(|e| e.to_string())?;
@@ -36,7 +37,7 @@ impl SwitchService {
             if let Ok(app_type_enum) = provider.app_type.parse::<AppType>() {
                 if app_type_enum != AppType::ProxyCast {
                     live_sync::sync_to_live(&app_type_enum, &provider)
-                        .map_err(|e| format!("Failed to sync: {}", e))?;
+                        .map_err(|e| format!("Failed to sync: {e}"))?;
                 }
             }
         }
@@ -48,8 +49,12 @@ impl SwitchService {
         let conn = db.lock().map_err(|e| e.to_string())?;
 
         // Check if this is the current provider
-        let current = ProviderDao::get_current(&conn, &provider.app_type).map_err(|e| e.to_string())?;
-        let is_current = current.as_ref().map(|p| p.id == provider.id).unwrap_or(false);
+        let current =
+            ProviderDao::get_current(&conn, &provider.app_type).map_err(|e| e.to_string())?;
+        let is_current = current
+            .as_ref()
+            .map(|p| p.id == provider.id)
+            .unwrap_or(false);
 
         ProviderDao::update(&conn, &provider).map_err(|e| e.to_string())?;
 
@@ -58,7 +63,7 @@ impl SwitchService {
             if let Ok(app_type_enum) = provider.app_type.parse::<AppType>() {
                 if app_type_enum != AppType::ProxyCast {
                     live_sync::sync_to_live(&app_type_enum, &provider)
-                        .map_err(|e| format!("Failed to sync: {}", e))?;
+                        .map_err(|e| format!("Failed to sync: {e}"))?;
                 }
             }
         }
@@ -86,15 +91,15 @@ impl SwitchService {
         // Get target provider
         let target_provider = ProviderDao::get_by_id(&conn, app_type, id)
             .map_err(|e| e.to_string())?
-            .ok_or_else(|| format!("Provider not found: {}", id))?;
+            .ok_or_else(|| format!("Provider not found: {id}"))?;
 
         let app_type_enum = app_type.parse::<AppType>().map_err(|e| e.to_string())?;
 
         // Skip backfill and sync for ProxyCast
         if app_type_enum != AppType::ProxyCast {
             // Backfill: Read current live config and save to current provider
-            if let Some(current_provider) = ProviderDao::get_current(&conn, app_type)
-                .map_err(|e| e.to_string())?
+            if let Some(current_provider) =
+                ProviderDao::get_current(&conn, app_type).map_err(|e| e.to_string())?
             {
                 // Only backfill if switching to a different provider
                 if current_provider.id != id {
@@ -114,7 +119,7 @@ impl SwitchService {
         // Sync target provider to live config
         if app_type_enum != AppType::ProxyCast {
             live_sync::sync_to_live(&app_type_enum, &target_provider)
-                .map_err(|e| format!("Failed to sync: {}", e))?;
+                .map_err(|e| format!("Failed to sync: {e}"))?;
         }
 
         Ok(())
@@ -139,7 +144,7 @@ impl SwitchService {
 
         // Read live settings
         let live_settings = live_sync::read_live_settings(&app_type_enum)
-            .map_err(|e| format!("Failed to read live settings: {}", e))?;
+            .map_err(|e| format!("Failed to read live settings: {e}"))?;
 
         // Create default provider
         let provider = Provider {