feat(copilot): add GitHub Copilot reverse proxy support (#930)

* refactor(toolsearch): replace binary patch with ENABLE_TOOL_SEARCH env var toggle

- Remove toolsearch_patch.rs binary patching mechanism (~590 lines)
  - Delete `toolsearch_patch.rs` and `commands/toolsearch.rs`
  - Remove auto-patch startup logic and command registration from lib.rs
  - Remove `tool_search_bypass` field from settings.rs
  - Remove frontend settings ToggleRow, useSettings hook sync logic, and API methods
  - Clean up zh/en/ja i18n keys (notifications + settings)

- Add ENABLE_TOOL_SEARCH toggle to Claude provider form
  - Add checkbox in CommonConfigEditor.tsx (alongside teammates toggle)
  - When enabled, writes `"env": { "ENABLE_TOOL_SEARCH": "true" }`
  - When disabled, removes the key; takes effect on provider switch
  - Add zh/en/ja i18n key: `claudeConfig.enableToolSearch`

Claude Code 2.1.76+ natively supports this env var, eliminating the need for binary patching.

* feat(claude): add effortLevel high toggle to provider form

- Add "high-effort thinking" checkbox to Claude provider config form
- When checked, writes `"effortLevel": "high"`; when unchecked, removes the field
- Add zh/en/ja i18n translations

* refactor(claude): remove deprecated alwaysThinking toggle

- Claude Code now enables extended thinking by default; alwaysThinkingEnabled is a no-op
- Thinking control is now handled via effortLevel (added in prior commit)
- Remove state, switch case, and checkbox UI from CommonConfigEditor
- Clean up alwaysThinking i18n keys across zh/en/ja locales

* feat(opencode): add setCacheKey: true to all provider presets

- Add setCacheKey: true to options in all 33 regular presets
- Add setCacheKey: true to OPENCODE_DEFAULT_CONFIG for custom providers
- Exclude 2 OMO presets (Oh My OpenCode / Slim) which have their own config mechanism

Closes #1523

* fix(codex): resolve 1M context window toggle causing MCP editor flicker

- Add localValueRef to short-circuit duplicate CodeMirror updateListener callbacks,
  breaking the React state → CodeMirror → stale onChange → React state feedback loop
- Use localValueRef.current in handleContextWindowToggle and handleCompactLimitChange
  to avoid stale closure reads
- Change compact limit input from type="number" to type="text" with inputMode="numeric"
  to remove unnecessary spinner buttons

* feat(codex): add 1M context window toggle utilities and i18n keys

- Add extractCodexTopLevelInt, setCodexTopLevelInt, removeCodexTopLevelField
  TOML helpers in providerConfigUtils.ts
- Add i18n keys for contextWindow1M, autoCompactLimit in zh/en/ja locales

* feat(claude): collapse model mapping fields by default

- Wrap 5 model mapping inputs in a Collapsible, collapsed by default
- Auto-expand when any model value is present (including preset-filled)
- Show hint text when collapsed explaining most users need no config
- Add zh/en/ja i18n keys for toggle label and collapsed hint
- Use variant={null} to avoid ghost button hover style clash in dark mode

* feat(claude): merge advanced fields into single collapsible section

- Merge API format, auth field, and model mapping into a unified "Advanced Options" collapsible
- Extend smart-expand logic to detect non-default values across all advanced fields
- Preserve model mapping sub-header and hint with a separator line
- Update zh/en/ja i18n keys (advancedOptionsToggle, advancedOptionsHint, modelMappingLabel, modelMappingHint)

* feat(copilot): add GitHub Copilot reverse proxy support

Add GitHub Copilot as a Claude provider variant with OAuth device code
authentication and Anthropic ↔ OpenAI format transformation.

Backend:
- Add CopilotAuthManager for GitHub OAuth device code flow
- Implement Copilot token auto-refresh (60s before expiry)
- Persist GitHub token to ~/.cc-switch/copilot_auth.json
- Add ProviderType::GitHubCopilot and AuthStrategy::GitHubCopilot
- Modify forwarder to use /chat/completions for Copilot
- Add Copilot-specific headers (Editor-Version, Editor-Plugin-Version)

Frontend:
- Add CopilotAuthSection component for OAuth UI
- Add useCopilotAuth hook for OAuth state management
- Auto-copy user code to clipboard and open browser
- Use 8-second polling interval to avoid GitHub rate limits
- Skip API Key validation for Copilot providers
- Add GitHub Copilot preset with claude-sonnet-4 model

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

* fix(copilot): remove is_expired() calls from tests

Remove references to deleted is_expired() method in test code.
Only is_expiring_soon() is needed for token refresh logic.

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

* feat(copilot): add real-time model listing from Copilot API

- Add fetch_models() to CopilotAuthManager calling GET /models endpoint
- Add copilot_get_models Tauri command
- Add copilotGetModels() frontend API wrapper
- Modify ClaudeFormFields to show model dropdown for Copilot providers
  - Fetches available models on component mount when isCopilotPreset
  - Groups models by vendor (Anthropic, OpenAI, Google, etc.)
  - Input + dropdown button combo allows both manual entry and selection
  - Non-Copilot providers keep original plain Input behavior

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* feat(copilot): add usage query integration

- Add Copilot usage API integration (fetch_usage method)
- Add copilot_get_usage Tauri command
- Add GitHub Copilot template in usage query modal
- Unify naming: copilot → github_copilot
- Add constants management (TEMPLATE_TYPES, PROVIDER_TYPES)
- Improve error handling with detailed error messages
- Add database migration (v5 → v6) for template type update
- Add i18n translations (zh, en, ja)
- Improve type safety with TemplateType
- Apply code formatting (cargo fmt, prettier)

* 修复github 登录和注销问题 ，模型选择问题

* feat(copilot): add multi-account support for GitHub Copilot

- Add multi-account storage structure with v1 to v2 migration
- Add per-account token caching and auto-refresh
- Add new Tauri commands for account management
- Integrate account selection in Proxy forwarder
- Add account selection UI in CopilotAuthSection
- Save githubAccountId to ProviderMeta
- Add i18n translations for multi-account features (zh/en/ja)

* 修复用量查询Reset字段出现多余字符

* refactor(auth-binding): introduce generic provider auth binding primitives

- add shared authBinding types in Rust and TypeScript while keeping githubAccountId as a compatibility field\n- resolve Copilot token, models, and usage through provider-bound account lookup instead of only the implicit default account\n- fix the Unix build regression in settings.rs by restoring std::io::Write for write_all()\n- remove the accidental .github ignore entry and drop leftover Copilot form debug logs\n- keep the first migration step non-breaking by writing both authBinding and the legacy githubAccountId field from the form

* refactor(auth-service): add managed auth command surface and explicit default account state

- introduce generic managed auth commands and frontend auth API wrappers for provider-scoped login, status, account listing, removal, logout, and default-account selection\n- store an explicit Copilot default_account_id instead of relying on HashMap iteration order, and use it consistently for fallback token/model/usage resolution\n- sort managed accounts deterministically and surface default-account state to the UI\n- refactor the Copilot form hook to wrap a generic useManagedAuth implementation while preserving the existing component contract\n- add default-account controls to the Copilot auth section and extend Copilot auth status serialization/tests for the new state

* feat(auth-center): add a dedicated settings entrypoint for managed OAuth accounts

- add an Auth Center tab to Settings so managed OAuth accounts are no longer hidden inside individual provider forms\n- introduce a first AuthCenterPanel that hosts GitHub Copilot account management as the initial managed auth provider\n- keep the provider form experience intact while establishing a global account-management surface for future providers such as OpenAI\n- validate that the new settings tab works cleanly with the generic managed auth hook and existing Copilot account controls

* feat(add-provider): expose managed OAuth sources alongside universal providers

- add an OAuth tab to the Add Provider flow so managed auth sources sit beside app-specific and universal providers\n- reuse the new Auth Center panel inside the dialog, keeping account management discoverable during provider creation\n- make the dialog footer adapt to the OAuth tab so account setup does not pretend to create a provider directly\n- align the add-provider UX with the new architecture where OAuth accounts are global assets and providers bind to them later

* fix(auth-reliability): harden managed auth persistence and refresh behavior

- replace direct Copilot auth store writes with private temp-file writes and atomic rename semantics, and document the local token storage limitation\n- add per-account refresh locks plus a double-check path so concurrent requests do not stampede GitHub token refresh\n- surface legacy migration failures through auth status, expose them in the UI, and add translated copy for the new account-state labels\n- stop writing the legacy githubAccountId field from the provider form while keeping compatibility reads in place\n- add logout error recovery and Copilot model-load toasts so auth failures are no longer silently swallowed

* refactor(copilot-detection): prefer provider type before URL fallbacks

- update forwarder endpoint rewriting to treat providerType as the primary GitHub Copilot signal\n- keep githubcopilot.com string matching only as a compatibility fallback for older provider records without providerType\n- reduce one more path where Copilot behavior depended purely on URL heuristics

* fix(copilot-auth): add cancel button to error state in CopilotAuthSection

- 错误状态下仅有"重试"按钮，用户无法退出（如不可恢复的 403 未订阅错误）
- 新增"取消"按钮，复用已有的 cancelAuth 逻辑重置为 idle 状态

* 修复打包后github账号头像显示异常

* 修复github copilot 来源的模型测试报错

* feat(copilot-preset): add default model presets for GitHub Copilot

- 补充 Copilot 预设的默认模型配置，用户选完预设即可直接使用
- ANTHROPIC_MODEL: claude-opus-4.6
- ANTHROPIC_DEFAULT_HAIKU_MODEL: claude-haiku-4.5
- ANTHROPIC_DEFAULT_SONNET_MODEL: claude-sonnet-4.6
- ANTHROPIC_DEFAULT_OPUS_MODEL: claude-opus-4.6

---------

Co-authored-by: Jason <farion1231@gmail.com>
Co-authored-by: 周梦泽 <mengze.zhou@dafeng-tech.com>
Co-authored-by: Claude Haiku 4.5 <noreply@anthropic.com>

src-tauri/src/lib.rs

@@ -25,7 +25,7 @@ mod services;
 mod session_manager;
 mod settings;
 mod store;
-mod toolsearch_patch;
+
 mod tray;
 mod usage_script;
 
@@ -690,6 +690,18 @@ pub fn run() {
             let skill_service = SkillService::new();
             app.manage(commands::skill::SkillServiceState(Arc::new(skill_service)));
 
+            // 初始化 CopilotAuthManager
+            {
+                use crate::proxy::providers::copilot_auth::CopilotAuthManager;
+                use commands::CopilotAuthState;
+                use tokio::sync::RwLock;
+
+                let app_config_dir = crate::config::get_app_config_dir();
+                let copilot_auth_manager = CopilotAuthManager::new(app_config_dir);
+                app.manage(CopilotAuthState(Arc::new(RwLock::new(copilot_auth_manager))));
+                log::info!("✓ CopilotAuthManager initialized");
+            }
+
             // 初始化全局出站代理 HTTP 客户端
             {
                 let db = &app.state::<AppState>().db;
@@ -806,26 +818,6 @@ pub fn run() {
                 }
             }
 
-            // Tool Search bypass: auto-apply patch on startup if enabled
-            if settings.tool_search_bypass {
-                match crate::toolsearch_patch::apply_toolsearch_patch() {
-                    Ok(results) => {
-                        let success = results.iter().filter(|r| r.success).count();
-                        let total = results.len();
-                        if success > 0 {
-                            log::info!("✓ Tool Search patch auto-applied ({success}/{total})");
-                        }
-                        for r in results.iter().filter(|r| !r.success) {
-                            if let Some(err) = &r.error {
-                                log::warn!("✗ Tool Search patch failed for {}: {err}", r.path);
-                            }
-                        }
-                    }
-                    Err(e) => {
-                        log::warn!("✗ Tool Search auto-patch skipped: {e}");
-                    }
-                }
-            }
 
             Ok(())
         })
@@ -873,10 +865,6 @@ pub fn run() {
             commands::is_claude_plugin_applied,
             commands::apply_claude_onboarding_skip,
             commands::clear_claude_onboarding_skip,
-            // Tool Search patch
-            commands::check_toolsearch_status,
-            commands::apply_toolsearch_patch,
-            commands::restore_toolsearch_patch,
             // Claude MCP management
             commands::get_claude_mcp_status,
             commands::read_claude_mcp_config,
@@ -1056,6 +1044,31 @@ pub fn run() {
             commands::scan_local_proxies,
             // Window theme control
             commands::set_window_theme,
+            // Generic managed auth commands
+            commands::auth_start_login,
+            commands::auth_poll_for_account,
+            commands::auth_list_accounts,
+            commands::auth_get_status,
+            commands::auth_remove_account,
+            commands::auth_set_default_account,
+            commands::auth_logout,
+            // Copilot OAuth commands (multi-account support)
+            commands::copilot_start_device_flow,
+            commands::copilot_poll_for_auth,
+            commands::copilot_poll_for_account,
+            commands::copilot_list_accounts,
+            commands::copilot_remove_account,
+            commands::copilot_set_default_account,
+            commands::copilot_get_auth_status,
+            commands::copilot_logout,
+            commands::copilot_is_authenticated,
+            commands::copilot_get_token,
+            commands::copilot_get_token_for_account,
+            commands::copilot_get_models,
+            commands::copilot_get_models_for_account,
+            commands::copilot_get_usage,
+            commands::copilot_get_usage_for_account,
+            // OMO commands
             commands::read_omo_local_file,
             commands::get_current_omo_provider_id,
             commands::disable_current_omo,