feat(proxy): align thinking rectifiers and resolve clippy warnings

- add thinking budget rectifier flow with single retry on anthropic budget errors

- align thinking signature rectification behavior with adaptive-safe handling

- expose requestThinkingBudget in settings/ui/i18n and default rectifier config to disabled

- fix clippy warnings in model_mapper format args and RectifierConfig default derive

src/components/settings/RectifierConfigPanel.tsx

@@ -8,8 +8,9 @@ import { settingsApi, type RectifierConfig } from "@/lib/api/settings";
 export function RectifierConfigPanel() {
   const { t } = useTranslation();
   const [config, setConfig] = useState<RectifierConfig>({
-    enabled: true,
-    requestThinkingSignature: true,
+    enabled: false,
+    requestThinkingSignature: false,
+    requestThinkingBudget: false,
   });
   const [isLoading, setIsLoading] = useState(true);
 
@@ -69,6 +70,21 @@ export function RectifierConfigPanel() {
             }
           />
         </div>
+        <div className="flex items-center justify-between pl-4">
+          <div className="space-y-0.5">
+            <Label>{t("settings.advanced.rectifier.thinkingBudget")}</Label>
+            <p className="text-xs text-muted-foreground">
+              {t("settings.advanced.rectifier.thinkingBudgetDescription")}
+            </p>
+          </div>
+          <Switch
+            checked={config.requestThinkingBudget}
+            disabled={!config.enabled}
+            onCheckedChange={(checked) =>
+              handleChange({ requestThinkingBudget: checked })
+            }
+          />
+        </div>
       </div>
     </div>
   );

src/i18n/locales/en.json

@@ -214,7 +214,9 @@
         "requestGroup": "Request Rectification",
         "responseGroup": "Response Rectification",
         "thinkingSignature": "Thinking Signature Rectification",
-        "thinkingSignatureDescription": "Automatically fix Claude API errors caused by thinking signature validation failures"
+        "thinkingSignatureDescription": "When an Anthropic-type provider returns thinking signature incompatibility or illegal request errors, automatically removes incompatible thinking-related blocks and retries once with the same provider",
+        "thinkingBudget": "Thinking Budget Rectification",
+        "thinkingBudgetDescription": "When an Anthropic-type provider returns budget_tokens constraint errors (such as at least 1024 or less than max_tokens), and the request explicitly enables thinking (type=enabled), automatically sets thinking budget to 32000 and max_tokens to 64000 if needed, then retries once"
       },
       "logConfig": {
         "title": "Log Management",

src/i18n/locales/ja.json

@@ -214,7 +214,9 @@
         "requestGroup": "リクエスト整流",
         "responseGroup": "レスポンス整流",
         "thinkingSignature": "Thinking 署名整流",
-        "thinkingSignatureDescription": "Claude API の thinking 署名検証エラーを自動修正"
+        "thinkingSignatureDescription": "Anthropic タイプのプロバイダーが thinking 署名の非互換性や不正なリクエストエラーを返した場合、互換性のない thinking 関連ブロックを自動削除し、同じプロバイダーで 1 回リトライします",
+        "thinkingBudget": "Thinking Budget 整流",
+        "thinkingBudgetDescription": "Anthropic タイプのプロバイダーが budget_tokens 制約エラー（例: 1024 以上、max_tokens 未満）を返し、かつリクエストで thinking（type=enabled）が明示的に有効な場合、thinking 予算を 32000 に設定し、必要に応じて max_tokens を 64000 に設定して 1 回リトライします"
       },
       "logConfig": {
         "title": "ログ管理",

src/i18n/locales/zh.json

@@ -214,7 +214,9 @@
         "requestGroup": "请求整流",
         "responseGroup": "响应整流",
         "thinkingSignature": "Thinking 签名整流",
-        "thinkingSignatureDescription": "自动修复 Claude API 中因 thinking 签名校验失败导致的请求错误"
+        "thinkingSignatureDescription": "当 Anthropic 类型供应商返回 thinking 签名不兼容或非法请求等错误时，自动移除不兼容的 thinking 相关块并对同一供应商重试一次",
+        "thinkingBudget": "Thinking Budget 整流",
+        "thinkingBudgetDescription": "当 Anthropic 类型供应商返回 budget_tokens 约束错误（如至少 1024、需小于 max_tokens）时，在请求显式开启 thinking（type=enabled）时自动将预算设为 32000，并在需要时将 max_tokens 设为 64000，然后重试一次"
       },
       "logConfig": {
         "title": "日志管理",

src/lib/api/settings.ts

@@ -155,6 +155,7 @@ export const settingsApi = {
 export interface RectifierConfig {
   enabled: boolean;
   requestThinkingSignature: boolean;
+  requestThinkingBudget: boolean;
 }
 
 export interface LogConfig {