diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
index 859ea98..a736b0d 100644
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -8,7 +8,6 @@ mod config;
 mod error;
 mod init_status;
 mod mcp;
-mod migration;
 mod provider;
 mod services;
 mod settings;
@@ -466,14 +465,9 @@ pub fn run() {
                 log::warn!("迁移 app_config_dir 失败: {}", e);
             }
 
-            // 首次启动迁移：扫描副本文件，合并到 config.json，并归档副本；旧 config.json 先归档
+            // 确保配置结构就绪（已移除旧版本的副本迁移逻辑）
             {
                 let mut config_guard = app_state.config.write().unwrap();
-                let migrated = migration::migrate_copies_into_config(&mut config_guard)?;
-                if migrated {
-                    log::info!("已将副本文件导入到 config.json，并完成归档");
-                }
-                // 确保两个 App 条目存在
                 config_guard.ensure_app(&app_config::AppType::Claude);
                 config_guard.ensure_app(&app_config::AppType::Codex);
             }
diff --git a/src-tauri/src/migration.rs b/src-tauri/src/migration.rs
deleted file mode 100644
index cadf600..0000000
--- a/src-tauri/src/migration.rs
+++ /dev/null
@@ -1,435 +0,0 @@
-use crate::app_config::{AppType, MultiAppConfig};
-use crate::config::{
-    archive_file, delete_file, get_app_config_dir, get_app_config_path, get_claude_config_dir,
-};
-use crate::error::AppError;
-use serde_json::Value;
-use std::collections::{HashMap, HashSet};
-use std::fs;
-use std::path::PathBuf;
-
-fn now_ts() -> u64 {
-    std::time::SystemTime::now()
-        .duration_since(std::time::UNIX_EPOCH)
-        .unwrap_or_default()
-        .as_secs()
-}
-
-fn get_marker_path() -> PathBuf {
-    get_app_config_dir().join("migrated.copies.v1")
-}
-
-fn sanitized_id(base: &str) -> String {
-    crate::config::sanitize_provider_name(base)
-}
-
-fn next_unique_id(existing: &HashSet<String>, base: &str) -> String {
-    let base = sanitized_id(base);
-    if !existing.contains(&base) {
-        return base;
-    }
-    for i in 2..1000 {
-        let candidate = format!("{}-{}", base, i);
-        if !existing.contains(&candidate) {
-            return candidate;
-        }
-    }
-    format!("{}-dup", base)
-}
-
-fn extract_claude_api_key(value: &Value) -> Option<String> {
-    value
-        .get("env")
-        .and_then(|env| {
-            env.get("ANTHROPIC_AUTH_TOKEN")
-                .or_else(|| env.get("ANTHROPIC_API_KEY"))
-        })
-        .and_then(|v| v.as_str())
-        .map(|s| s.to_string())
-}
-
-fn extract_codex_api_key(value: &Value) -> Option<String> {
-    value
-        .get("auth")
-        .and_then(|auth| {
-            auth.get("OPENAI_API_KEY")
-                .or_else(|| auth.get("openai_api_key"))
-        })
-        .and_then(|v| v.as_str())
-        .map(|s| s.to_string())
-}
-
-fn norm_name(s: &str) -> String {
-    s.trim().to_lowercase()
-}
-
-// 去重策略：name + 原始 key 直接比较（不做哈希）
-
-fn scan_claude_copies() -> Vec<(String, PathBuf, Value)> {
-    let mut items = Vec::new();
-    let dir = get_claude_config_dir();
-    if !dir.exists() {
-        return items;
-    }
-    if let Ok(rd) = fs::read_dir(&dir) {
-        for e in rd.flatten() {
-            let p = e.path();
-            let fname = match p.file_name().and_then(|s| s.to_str()) {
-                Some(s) => s,
-                None => continue,
-            };
-            if fname == "settings.json" || fname == "claude.json" {
-                continue;
-            }
-            if !fname.starts_with("settings-") || !fname.ends_with(".json") {
-                continue;
-            }
-            let name = fname
-                .trim_start_matches("settings-")
-                .trim_end_matches(".json");
-            if let Ok(val) = crate::config::read_json_file::<Value>(&p) {
-                items.push((name.to_string(), p, val));
-            }
-        }
-    }
-    items
-}
-
-fn scan_codex_copies() -> Vec<(String, Option<PathBuf>, Option<PathBuf>, Value)> {
-    let mut by_name: HashMap<String, (Option<PathBuf>, Option<PathBuf>)> = HashMap::new();
-    let dir = crate::codex_config::get_codex_config_dir();
-    if !dir.exists() {
-        return Vec::new();
-    }
-    if let Ok(rd) = fs::read_dir(&dir) {
-        for e in rd.flatten() {
-            let p = e.path();
-            let fname = match p.file_name().and_then(|s| s.to_str()) {
-                Some(s) => s,
-                None => continue,
-            };
-            if fname.starts_with("auth-") && fname.ends_with(".json") {
-                let name = fname.trim_start_matches("auth-").trim_end_matches(".json");
-                let entry = by_name.entry(name.to_string()).or_default();
-                entry.0 = Some(p);
-            } else if fname.starts_with("config-") && fname.ends_with(".toml") {
-                let name = fname
-                    .trim_start_matches("config-")
-                    .trim_end_matches(".toml");
-                let entry = by_name.entry(name.to_string()).or_default();
-                entry.1 = Some(p);
-            }
-        }
-    }
-
-    let mut items = Vec::new();
-    for (name, (auth_path, config_path)) in by_name {
-        if let Some(authp) = auth_path {
-            if let Ok(auth) = crate::config::read_json_file::<Value>(&authp) {
-                let config_str = if let Some(cfgp) = &config_path {
-                    match crate::codex_config::read_and_validate_config_from_path(cfgp) {
-                        Ok(s) => s,
-                        Err(e) => {
-                            log::warn!("跳过无效 Codex config-{}.toml: {}", name, e);
-                            String::new()
-                        }
-                    }
-                } else {
-                    String::new()
-                };
-                let settings = serde_json::json!({
-                    "auth": auth,
-                    "config": config_str,
-                });
-                items.push((name, Some(authp), config_path, settings));
-            }
-        }
-    }
-    items
-}
-
-pub fn migrate_copies_into_config(config: &mut MultiAppConfig) -> Result<bool, AppError> {
-    // 如果已迁移过则跳过；若目录不存在则先创建，避免新装用户写入标记时失败
-    let marker = get_marker_path();
-    if let Some(parent) = marker.parent() {
-        std::fs::create_dir_all(parent).map_err(|e| AppError::io(parent, e))?;
-    }
-    if marker.exists() {
-        return Ok(false);
-    }
-
-    let claude_items = scan_claude_copies();
-    let codex_items = scan_codex_copies();
-    if claude_items.is_empty() && codex_items.is_empty() {
-        // 即便没有可迁移项，也写入标记避免每次扫描
-        fs::write(&marker, b"no-copies").map_err(|e| AppError::io(&marker, e))?;
-        return Ok(false);
-    }
-
-    // 备份旧的 config.json
-    let ts = now_ts();
-    let app_cfg_path = get_app_config_path();
-    if app_cfg_path.exists() {
-        let _ = archive_file(ts, "cc-switch", &app_cfg_path);
-    }
-
-    // 读取 live：Claude（settings.json / claude.json）
-    let live_claude: Option<(String, Value)> = {
-        let settings_path = crate::config::get_claude_settings_path();
-        if settings_path.exists() {
-            match crate::config::read_json_file::<Value>(&settings_path) {
-                Ok(val) => Some(("default".to_string(), val)),
-                Err(e) => {
-                    log::warn!("读取 Claude live 配置失败: {}", e);
-                    None
-                }
-            }
-        } else {
-            None
-        }
-    };
-
-    // 合并：Claude（优先 live，然后副本） - 去重键: name + apiKey（直接比较）
-    config.ensure_app(&AppType::Claude);
-    let manager = config.get_manager_mut(&AppType::Claude).unwrap();
-    let mut ids: HashSet<String> = manager.providers.keys().cloned().collect();
-    let mut live_claude_id: Option<String> = None;
-
-    if let Some((name, value)) = &live_claude {
-        let cand_key = extract_claude_api_key(value);
-        let exist_id = manager.providers.iter().find_map(|(id, p)| {
-            let pk = extract_claude_api_key(&p.settings_config);
-            if norm_name(&p.name) == norm_name(name) && pk == cand_key {
-                Some(id.clone())
-            } else {
-                None
-            }
-        });
-        if let Some(exist_id) = exist_id {
-            if let Some(prov) = manager.providers.get_mut(&exist_id) {
-                log::info!("合并到已存在 Claude 供应商 '{}' (by name+key)", name);
-                prov.settings_config = value.clone();
-                live_claude_id = Some(exist_id);
-            }
-        } else {
-            let id = next_unique_id(&ids, name);
-            ids.insert(id.clone());
-            let provider =
-                crate::provider::Provider::with_id(id.clone(), name.clone(), value.clone(), None);
-            manager.providers.insert(provider.id.clone(), provider);
-            live_claude_id = Some(id);
-        }
-    }
-    for (name, path, value) in claude_items.iter() {
-        let cand_key = extract_claude_api_key(value);
-        let exist_id = manager.providers.iter().find_map(|(id, p)| {
-            let pk = extract_claude_api_key(&p.settings_config);
-            if norm_name(&p.name) == norm_name(name) && pk == cand_key {
-                Some(id.clone())
-            } else {
-                None
-            }
-        });
-        if let Some(exist_id) = exist_id {
-            if let Some(prov) = manager.providers.get_mut(&exist_id) {
-                log::info!(
-                    "覆盖 Claude 供应商 '{}' 来自 {} (by name+key)",
-                    name,
-                    path.display()
-                );
-                prov.settings_config = value.clone();
-            }
-        } else {
-            let id = next_unique_id(&ids, name);
-            ids.insert(id.clone());
-            let provider =
-                crate::provider::Provider::with_id(id.clone(), name.clone(), value.clone(), None);
-            manager.providers.insert(provider.id.clone(), provider);
-        }
-    }
-
-    // 读取 live：Codex（auth.json 必需，config.toml 可空）
-    let live_codex: Option<(String, Value)> = {
-        let auth_path = crate::codex_config::get_codex_auth_path();
-        if auth_path.exists() {
-            match crate::config::read_json_file::<Value>(&auth_path) {
-                Ok(auth) => {
-                    let cfg = match crate::codex_config::read_and_validate_codex_config_text() {
-                        Ok(s) => s,
-                        Err(e) => {
-                            log::warn!("读取/校验 Codex live config.toml 失败: {}", e);
-                            String::new()
-                        }
-                    };
-                    Some((
-                        "default".to_string(),
-                        serde_json::json!({"auth": auth, "config": cfg}),
-                    ))
-                }
-                Err(e) => {
-                    log::warn!("读取 Codex live auth.json 失败: {}", e);
-                    None
-                }
-            }
-        } else {
-            None
-        }
-    };
-
-    // 合并：Codex（优先 live，然后副本） - 去重键: name + OPENAI_API_KEY（直接比较）
-    config.ensure_app(&AppType::Codex);
-    let manager = config.get_manager_mut(&AppType::Codex).unwrap();
-    let mut ids: HashSet<String> = manager.providers.keys().cloned().collect();
-    let mut live_codex_id: Option<String> = None;
-
-    if let Some((name, value)) = &live_codex {
-        let cand_key = extract_codex_api_key(value);
-        let exist_id = manager.providers.iter().find_map(|(id, p)| {
-            let pk = extract_codex_api_key(&p.settings_config);
-            if norm_name(&p.name) == norm_name(name) && pk == cand_key {
-                Some(id.clone())
-            } else {
-                None
-            }
-        });
-        if let Some(exist_id) = exist_id {
-            if let Some(prov) = manager.providers.get_mut(&exist_id) {
-                log::info!("合并到已存在 Codex 供应商 '{}' (by name+key)", name);
-                prov.settings_config = value.clone();
-                live_codex_id = Some(exist_id);
-            }
-        } else {
-            let id = next_unique_id(&ids, name);
-            ids.insert(id.clone());
-            let provider =
-                crate::provider::Provider::with_id(id.clone(), name.clone(), value.clone(), None);
-            manager.providers.insert(provider.id.clone(), provider);
-            live_codex_id = Some(id);
-        }
-    }
-    for (name, authp, cfgp, value) in codex_items.iter() {
-        let cand_key = extract_codex_api_key(value);
-        let exist_id = manager.providers.iter().find_map(|(id, p)| {
-            let pk = extract_codex_api_key(&p.settings_config);
-            if norm_name(&p.name) == norm_name(name) && pk == cand_key {
-                Some(id.clone())
-            } else {
-                None
-            }
-        });
-        if let Some(exist_id) = exist_id {
-            if let Some(prov) = manager.providers.get_mut(&exist_id) {
-                log::info!(
-                    "覆盖 Codex 供应商 '{}' 来自 {:?}/{:?} (by name+key)",
-                    name,
-                    authp,
-                    cfgp
-                );
-                prov.settings_config = value.clone();
-            }
-        } else {
-            let id = next_unique_id(&ids, name);
-            ids.insert(id.clone());
-            let provider =
-                crate::provider::Provider::with_id(id.clone(), name.clone(), value.clone(), None);
-            manager.providers.insert(provider.id.clone(), provider);
-        }
-    }
-
-    // 若当前为空，将 live 导入项设为当前
-    {
-        let manager = config.get_manager_mut(&AppType::Claude).unwrap();
-        if manager.current.is_empty() {
-            if let Some(id) = live_claude_id {
-                manager.current = id;
-            }
-        }
-    }
-    {
-        let manager = config.get_manager_mut(&AppType::Codex).unwrap();
-        if manager.current.is_empty() {
-            if let Some(id) = live_codex_id {
-                manager.current = id;
-            }
-        }
-    }
-
-    // 归档副本文件
-    for (_, p, _) in claude_items.into_iter() {
-        match archive_file(ts, "claude", &p) {
-            Ok(Some(_)) => {
-                let _ = delete_file(&p);
-            }
-            _ => {
-                // 归档失败则不要删除原文件，保守处理
-            }
-        }
-    }
-    for (_, ap, cp, _) in codex_items.into_iter() {
-        if let Some(ap) = ap {
-            if let Ok(Some(_)) = archive_file(ts, "codex", &ap) {
-                let _ = delete_file(&ap);
-            }
-        }
-        if let Some(cp) = cp {
-            if let Ok(Some(_)) = archive_file(ts, "codex", &cp) {
-                let _ = delete_file(&cp);
-            }
-        }
-    }
-
-    // 标记完成
-    // 仅在迁移阶段执行一次全量去重（忽略大小写的名称 + API Key）
-    let removed = dedupe_config(config);
-    if removed > 0 {
-        log::info!("迁移阶段已去重重复供应商 {} 个", removed);
-    }
-
-    fs::write(&marker, b"done").map_err(|e| AppError::io(&marker, e))?;
-    Ok(true)
-}
-
-/// 启动时对现有配置做一次去重：按名称(忽略大小写)+API Key
-pub fn dedupe_config(config: &mut MultiAppConfig) -> usize {
-    use std::collections::HashMap as Map;
-
-    fn dedupe_one(
-        mgr: &mut crate::provider::ProviderManager,
-        extract_key: &dyn Fn(&Value) -> Option<String>,
-    ) -> usize {
-        let mut keep: Map<String, String> = Map::new(); // key -> id 保留
-        let mut remove: Vec<String> = Vec::new();
-        for (id, p) in mgr.providers.iter() {
-            let k = format!(
-                "{}|{}",
-                norm_name(&p.name),
-                extract_key(&p.settings_config).unwrap_or_default()
-            );
-            if let Some(exist_id) = keep.get(&k) {
-                // 若当前是正在使用的，则用当前替换之前的，反之丢弃当前
-                if *id == mgr.current {
-                    // 替换：把原先的标记为删除，改保留为当前
-                    remove.push(exist_id.clone());
-                    keep.insert(k, id.clone());
-                } else {
-                    remove.push(id.clone());
-                }
-            } else {
-                keep.insert(k, id.clone());
-            }
-        }
-        for id in remove.iter() {
-            mgr.providers.remove(id);
-        }
-        remove.len()
-    }
-
-    let mut removed = 0;
-    if let Some(mgr) = config.get_manager_mut(&crate::app_config::AppType::Claude) {
-        removed += dedupe_one(mgr, &extract_claude_api_key);
-    }
-    if let Some(mgr) = config.get_manager_mut(&crate::app_config::AppType::Codex) {
-        removed += dedupe_one(mgr, &extract_codex_api_key);
-    }
-    removed
-}