refactor(provider): switch from full config overwrite to partial key-field merging (#1098)

* refactor(provider): switch from full config overwrite to partial key-field merging

Replace the provider switching mechanism for Claude/Codex/Gemini from
full settings_config overwrite to partial key-field replacement, preserving
user's non-provider settings (plugins, MCP, permissions, etc.) across switches.

- Add write_live_partial() with per-app implementations for Claude (JSON env
  merge), Codex (auth replace + TOML partial merge), and Gemini (env merge)
- Add backfill_key_fields() to extract only provider-specific fields when
  saving live config back to provider entries
- Update switch_normal, sync_current_to_live, add, update to use partial merge
- Remove common config snippet feature for Claude/Codex/Gemini (no longer
  needed with partial merging); preserve OMO common config
- Delete 6 frontend files (3 components + 3 hooks), clean up 11 modified files
- Remove backend extract_common_config_* methods, 3 Tauri commands,
  CommonConfigSnippets struct, and related migration code
- Update integration tests to validate key-field-only backfill behavior

* refactor(cleanup): remove dead code and redundant MCP sync after partial-merge refactor

- Remove ConfigService legacy full-overwrite sync methods (~150 lines)
- Remove redundant McpService::sync_all_enabled from switch_normal
- Switch proxy fallback recovery from write_live_snapshot to write_live_partial
- Remove dead ProviderService::write_gemini_live wrapper
- Update tests to reflect partial-merge behavior (MCP preserved, not re-synced)

* feat(claude): add Quick Toggles for common Claude Code preferences

Add checkbox toggles for hideAttribution, alwaysThinking, and
enableTeammates that write directly to the live settings file via
RFC 7396 JSON Merge Patch. Mirror changes to the form editor using
form.watch for reactive updates.

* fix(provider): add missing key fields to partial-merge constants

Add provider-specific fields verified against official docs to prevent
key residue or loss during provider switching:

- Claude: CLAUDE_CODE_SUBAGENT_MODEL (env), model (top-level)
- Codex: review_model, plan_mode_reasoning_effort
- Gemini: GOOGLE_API_KEY (official alternative to GEMINI_API_KEY)

* fix(provider): expand partial-merge key fields for Bedrock, Vertex, Foundry and behavior settings

Add missing env/top-level fields to CLAUDE_KEY_ENV_FIELDS and
CLAUDE_KEY_TOP_LEVEL so that provider switching correctly replaces
(and clears) credentials and flags for AWS Bedrock, Google Vertex AI,
Microsoft Foundry, and provider behavior overrides like max output
tokens and prompt caching.

* feat(provider): add auth field selector for Claude providers (AUTH_TOKEN / API_KEY)

Allow users to choose between ANTHROPIC_AUTH_TOKEN and ANTHROPIC_API_KEY
when creating or editing custom Claude providers, persisted in meta.apiKeyField.

* refactor(preset): remove AiHubMix hardcoded API_KEY in favor of generic auth selector

AiHubMix was the only preset that hardcoded ANTHROPIC_API_KEY before the
generic auth field selector was introduced. Now that users can freely
choose between AUTH_TOKEN and API_KEY via the UI, remove the special-case
and default AiHubMix to the standard ANTHROPIC_AUTH_TOKEN.

src/i18n/locales/en.json

@@ -51,15 +51,7 @@
   },
   "claudeConfig": {
     "configLabel": "Claude Code settings.json (JSON) *",
-    "writeCommonConfig": "Write Common Config",
-    "editCommonConfig": "Edit Common Config",
-    "editCommonConfigTitle": "Edit Common Config Snippet",
-    "commonConfigHint": "This snippet will be merged into settings.json when 'Write Common Config' is checked",
     "fullSettingsHint": "Full Claude Code settings.json content",
-    "extractFromCurrent": "Extract from Editor",
-    "extractNoCommonConfig": "No common config available to extract from editor",
-    "extractFailed": "Extract failed: {{error}}",
-    "saveFailed": "Save failed: {{error}}",
     "hideAttribution": "Hide AI Attribution",
     "alwaysThinking": "Extended Thinking",
     "enableTeammates": "Teammates Mode"
@@ -125,11 +117,7 @@
     "notes": "Notes",
     "notesPlaceholder": "e.g., Company dedicated account",
     "configJson": "Config JSON",
-    "writeCommonConfig": "Write common config",
-    "editCommonConfigButton": "Edit common config",
     "configJsonHint": "Please fill in complete Claude Code configuration",
-    "editCommonConfigTitle": "Edit common config snippet",
-    "editCommonConfigHint": "Common config snippet will be merged into all providers that enable it",
     "addProvider": "Add Provider",
     "sortUpdated": "Sort order updated",
     "usageSaved": "Usage query configuration saved",
@@ -667,6 +655,10 @@
     "apiFormatHint": "Select the input format for the provider's API",
     "apiFormatAnthropic": "Anthropic Messages (Native)",
     "apiFormatOpenAIChat": "OpenAI Chat Completions (Requires proxy)",
+    "authField": "Auth Field",
+    "authFieldAuthToken": "Auth Token (Default)",
+    "authFieldApiKey": "API Key",
+    "authFieldHint": "Most third-party providers use Auth Token; a few require API Key",
     "anthropicDefaultHaikuModel": "Default Haiku Model",
     "anthropicDefaultSonnetModel": "Default Sonnet Model",
     "anthropicDefaultOpusModel": "Default Opus Model",
@@ -738,33 +730,15 @@
     "authJsonHint": "Codex auth.json configuration content",
     "configToml": "config.toml (TOML)",
     "configTomlHint": "Codex config.toml configuration content",
-    "writeCommonConfig": "Write Common Config",
-    "editCommonConfig": "Edit Common Config",
-    "editCommonConfigTitle": "Edit Codex Common Config Snippet",
-    "commonConfigHint": "This snippet will be appended to the end of config.toml when 'Write Common Config' is checked",
-    "apiUrlLabel": "API Request URL",
-    "extractFromCurrent": "Extract from Editor",
-    "extractNoCommonConfig": "No common config available to extract from editor",
-    "extractFailed": "Extract failed: {{error}}",
-    "saveFailed": "Save failed: {{error}}"
+    "apiUrlLabel": "API Request URL"
   },
   "geminiConfig": {
     "envFile": "Environment Variables (.env)",
     "envFileHint": "Configure Gemini environment variables in .env format",
     "configJson": "Configuration File (config.json)",
     "configJsonHint": "Configure Gemini extended parameters in JSON format (optional)",
-    "writeCommonConfig": "Write Common Config",
-    "editCommonConfig": "Edit Common Config",
-    "editCommonConfigTitle": "Edit Gemini Common Config Snippet",
-    "commonConfigHint": "This snippet writes to Gemini .env (GOOGLE_GEMINI_BASE_URL and GEMINI_API_KEY are not allowed)",
-    "extractFromCurrent": "Extract from Editor",
-    "extractNoCommonConfig": "No common config available to extract from editor",
-    "extractFailed": "Extract failed: {{error}}",
-    "saveFailed": "Save failed: {{error}}",
     "extractedConfigInvalid": "Extracted config format is invalid",
     "invalidJsonFormat": "Common config snippet format error (must be valid JSON)",
-    "commonConfigInvalidKeys": "Common config snippet must not include GOOGLE_GEMINI_BASE_URL or GEMINI_API_KEY (found: {{keys}})",
-    "commonConfigInvalidValues": "Common config snippet values must be strings",
     "noCommonConfigToApply": "Common config snippet is empty or has no applicable entries",
     "configMergeFailed": "Config merge failed: {{error}}",
     "configReplaceFailed": "Config replace failed: {{error}}"

src/i18n/locales/ja.json

@@ -51,15 +51,7 @@
   },
   "claudeConfig": {
     "configLabel": "Claude Code settings.json (JSON) *",
-    "writeCommonConfig": "共通設定を書き込む",
-    "editCommonConfig": "共通設定を編集",
-    "editCommonConfigTitle": "共通設定スニペットを編集",
-    "commonConfigHint": "「共通設定を書き込む」がオンのとき settings.json にマージされます",
     "fullSettingsHint": "Claude Code の settings.json 全文",
-    "extractFromCurrent": "編集内容から抽出",
-    "extractNoCommonConfig": "編集内容から抽出できる共通設定がありません",
-    "extractFailed": "抽出に失敗しました: {{error}}",
-    "saveFailed": "保存に失敗しました: {{error}}",
     "hideAttribution": "AI署名を非表示",
     "alwaysThinking": "拡張思考",
     "enableTeammates": "Teammates モード"
@@ -125,11 +117,7 @@
     "notes": "メモ",
     "notesPlaceholder": "例: 会社用アカウント",
     "configJson": "Config JSON",
-    "writeCommonConfig": "共通設定を書き込む",
-    "editCommonConfigButton": "共通設定を編集",
     "configJsonHint": "Claude Code の設定をすべて入力してください",
-    "editCommonConfigTitle": "共通設定スニペットを編集",
-    "editCommonConfigHint": "共通設定スニペットは、この機能をオンにしたすべてのプロバイダーへマージされます",
     "addProvider": "プロバイダーを追加",
     "sortUpdated": "並び順を更新しました",
     "usageSaved": "利用状況の設定を保存しました",
@@ -667,6 +655,10 @@
     "apiFormatHint": "プロバイダー API の入力フォーマットを選択",
     "apiFormatAnthropic": "Anthropic Messages（ネイティブ）",
     "apiFormatOpenAIChat": "OpenAI Chat Completions（プロキシが必要）",
+    "authField": "認証フィールド",
+    "authFieldAuthToken": "Auth Token（デフォルト）",
+    "authFieldApiKey": "API Key",
+    "authFieldHint": "ほとんどのサードパーティプロバイダーは Auth Token を使用します。一部は API Key が必要です",
     "anthropicDefaultHaikuModel": "既定 Haiku モデル",
     "anthropicDefaultSonnetModel": "既定 Sonnet モデル",
     "anthropicDefaultOpusModel": "既定 Opus モデル",
@@ -738,33 +730,15 @@
     "authJsonHint": "Codex の auth.json 設定内容",
     "configToml": "config.toml (TOML)",
     "configTomlHint": "Codex の config.toml 設定内容",
-    "writeCommonConfig": "共通設定を書き込む",
-    "editCommonConfig": "共通設定を編集",
-    "editCommonConfigTitle": "Codex 共通設定スニペットを編集",
-    "commonConfigHint": "「共通設定を書き込む」がオンの場合、config.toml の末尾に追記されます",
-    "apiUrlLabel": "API リクエスト URL",
-    "extractFromCurrent": "編集内容から抽出",
-    "extractNoCommonConfig": "編集内容から抽出できる共通設定がありません",
-    "extractFailed": "抽出に失敗しました: {{error}}",
-    "saveFailed": "保存に失敗しました: {{error}}"
+    "apiUrlLabel": "API リクエスト URL"
   },
   "geminiConfig": {
     "envFile": "環境変数 (.env)",
     "envFileHint": ".env 形式で Gemini の環境変数を設定",
     "configJson": "設定ファイル (config.json)",
     "configJsonHint": "Gemini 拡張パラメーターを JSON 形式で設定（任意）",
-    "writeCommonConfig": "共通設定を書き込む",
-    "editCommonConfig": "共通設定を編集",
-    "editCommonConfigTitle": "Gemini 共通設定スニペットを編集",
-    "commonConfigHint": "このスニペットは Gemini の .env に書き込みます（GOOGLE_GEMINI_BASE_URL、GEMINI_API_KEY は使用できません）",
-    "extractFromCurrent": "編集内容から抽出",
-    "extractNoCommonConfig": "編集内容から抽出できる共通設定がありません",
-    "extractFailed": "抽出に失敗しました: {{error}}",
-    "saveFailed": "保存に失敗しました: {{error}}",
     "extractedConfigInvalid": "抽出した設定のフォーマットが不正です",
     "invalidJsonFormat": "共通設定スニペットの形式が不正です（有効な JSON でなければなりません）",
-    "commonConfigInvalidKeys": "共通設定スニペットに GOOGLE_GEMINI_BASE_URL または GEMINI_API_KEY を含めることはできません（検出: {{keys}}）",
-    "commonConfigInvalidValues": "共通設定スニペットの値は文字列である必要があります",
     "noCommonConfigToApply": "共通設定スニペットが空、または適用できる項目がありません",
     "configMergeFailed": "設定のマージに失敗しました: {{error}}",
     "configReplaceFailed": "設定の置換に失敗しました: {{error}}"

src/i18n/locales/zh.json

@@ -51,15 +51,7 @@
   },
   "claudeConfig": {
     "configLabel": "Claude Code 配置 (JSON) *",
-    "writeCommonConfig": "写入通用配置",
-    "editCommonConfig": "编辑通用配置",
-    "editCommonConfigTitle": "编辑通用配置片段",
-    "commonConfigHint": "该片段会在勾选\"写入通用配置\"时合并到 settings.json 中",
     "fullSettingsHint": "完整的 Claude Code settings.json 配置内容",
-    "extractFromCurrent": "从编辑内容提取",
-    "extractNoCommonConfig": "当前编辑内容没有可提取的通用配置",
-    "extractFailed": "提取失败: {{error}}",
-    "saveFailed": "保存失败: {{error}}",
     "hideAttribution": "隐藏 AI 署名",
     "alwaysThinking": "扩展思考",
     "enableTeammates": "Teammates 模式"
@@ -125,11 +117,7 @@
     "notes": "备注",
     "notesPlaceholder": "例如：公司专用账号",
     "configJson": "配置 JSON",
-    "writeCommonConfig": "写入通用配置",
-    "editCommonConfigButton": "编辑通用配置",
     "configJsonHint": "请填写完整的 Claude Code 配置",
-    "editCommonConfigTitle": "编辑通用配置片段",
-    "editCommonConfigHint": "通用配置片段将合并到所有启用它的供应商配置中",
     "addProvider": "添加供应商",
     "sortUpdated": "排序已更新",
     "usageSaved": "用量查询配置已保存",
@@ -667,6 +655,10 @@
     "apiFormatHint": "选择供应商 API 的输入格式",
     "apiFormatAnthropic": "Anthropic Messages (原生)",
     "apiFormatOpenAIChat": "OpenAI Chat Completions (需开启代理)",
+    "authField": "认证字段",
+    "authFieldAuthToken": "Auth Token (默认)",
+    "authFieldApiKey": "API Key",
+    "authFieldHint": "大多数第三方供应商使用 Auth Token；少数供应商需要 API Key",
     "anthropicDefaultHaikuModel": "Haiku 默认模型",
     "anthropicDefaultSonnetModel": "Sonnet 默认模型",
     "anthropicDefaultOpusModel": "Opus 默认模型",
@@ -738,33 +730,15 @@
     "authJsonHint": "Codex auth.json 配置内容",
     "configToml": "config.toml (TOML)",
     "configTomlHint": "Codex config.toml 配置内容",
-    "writeCommonConfig": "写入通用配置",
-    "editCommonConfig": "编辑通用配置",
-    "editCommonConfigTitle": "编辑 Codex 通用配置片段",
-    "commonConfigHint": "该片段会在勾选'写入通用配置'时追加到 config.toml 末尾",
-    "apiUrlLabel": "API 请求地址",
-    "extractFromCurrent": "从编辑内容提取",
-    "extractNoCommonConfig": "当前编辑内容没有可提取的通用配置",
-    "extractFailed": "提取失败: {{error}}",
-    "saveFailed": "保存失败: {{error}}"
+    "apiUrlLabel": "API 请求地址"
   },
   "geminiConfig": {
     "envFile": "环境变量 (.env)",
     "envFileHint": "使用 .env 格式配置 Gemini 环境变量",
     "configJson": "配置文件 (config.json)",
     "configJsonHint": "使用 JSON 格式配置 Gemini 扩展参数（可选）",
-    "writeCommonConfig": "写入通用配置",
-    "editCommonConfig": "编辑通用配置",
-    "editCommonConfigTitle": "编辑 Gemini 通用配置片段",
-    "commonConfigHint": "该片段会写入 Gemini 的 .env（不允许包含 GOOGLE_GEMINI_BASE_URL、GEMINI_API_KEY）",
-    "extractFromCurrent": "从编辑内容提取",
-    "extractNoCommonConfig": "当前编辑内容没有可提取的通用配置",
-    "extractFailed": "提取失败: {{error}}",
-    "saveFailed": "保存失败: {{error}}",
     "extractedConfigInvalid": "提取的配置格式错误",
     "invalidJsonFormat": "通用配置片段格式错误（必须是有效的 JSON）",
-    "commonConfigInvalidKeys": "通用配置片段不能包含 GOOGLE_GEMINI_BASE_URL 或 GEMINI_API_KEY（发现：{{keys}}）",
-    "commonConfigInvalidValues": "通用配置片段的值必须是字符串",
     "noCommonConfigToApply": "通用配置片段为空或没有可写入的内容",
     "configMergeFailed": "配置合并失败: {{error}}",
     "configReplaceFailed": "配置替换失败: {{error}}"