fix: 去除openai-apkey账户请求路径多余的v1

AGENTS.md

-<!-- OPENSPEC:START -->
-# OpenSpec Instructions
-
-These instructions are for AI assistants working in this project.
-
-Always open `@/openspec/AGENTS.md` when the request:
-- Mentions planning or proposals (words like proposal, spec, change, plan)
-- Introduces new capabilities, breaking changes, architecture shifts, or big performance/security work
-- Sounds ambiguous and you need the authoritative spec before coding
-
-Use `@/openspec/AGENTS.md` to learn:
-- How to create and apply change proposals
-- Spec format and conventions
-- Project structure and guidelines
-
-Keep this managed block so 'openspec update' can refresh the instructions.
-
-<!-- OPENSPEC:END -->
-
-## 强制语言规范
-
-以下为强制规定：
-- 与用户交流一律使用中文。
-- 代码文档与代码注释一律使用中文。
-- OpenSpec 提案与相关说明一律使用中文。

backend/internal/service/account_test_service.go

@@ -328,7 +328,7 @@ func (s *AccountTestService) testOpenAIAccountConnection(c *gin.Context, account
 		if baseURL == "" {
 			baseURL = "https://api.openai.com"
 		}
-		apiURL = strings.TrimSuffix(baseURL, "/") + "/v1/responses"
+		apiURL = strings.TrimSuffix(baseURL, "/") + "/responses"
 	} else {
 		return s.sendErrorAndEnd(c, fmt.Sprintf("Unsupported account type: %s", account.Type))
 	}

backend/internal/service/openai_gateway_service.go

@@ -371,7 +371,7 @@ func (s *OpenAIGatewayService) buildUpstreamRequest(ctx context.Context, c *gin.
 		// API Key accounts use Platform API or custom base URL
 		baseURL := account.GetOpenAIBaseURL()
 		if baseURL != "" {
-			targetURL = baseURL + "/v1/responses"
+			targetURL = baseURL + "/responses"
 		} else {
 			targetURL = openaiPlatformAPIURL
 		}