feat(llm): 支持 OpenAI Responses API 格式的 LLM 配置

依赖升级到 norma v0.3.1(新增 FormatOpenAIResponses + reasoning_content 回传
修复)。每个 LLM profile 现在可选第三种格式 openai-responses,打
POST /v1/responses,与 Chat Completions / Anthropic 并列。

- agent.Config:ConfigFrom / FromEnv / Provider() 支持 openai-responses
  (BaseURL 归一化去 /responses 尾巴,默认 model gpt-5)
- server:saveLLMConfig 放开二元 format 归一;模型列表端点复用 OpenAI
  /models(Responses 模型列表仍在 /v1/models)
- db: llm_profiles 的 format CHECK 约束加入 openai-responses,并幂等迁移
  (DROP + ADD CONSTRAINT)补旧库
- web: 格式下拉新增「OpenAI (Responses API)」,类型与回显同步

流式/非流式两条路都走新 adapter;输出、token 统计、操作统计、LLM 录制
四条链路复用中性层,无需改动。

web/src/app/(main)/system/llm/page.tsx

@@ -296,7 +296,7 @@ function ProfileSheet({
 }) {
   const isNew = !profile;
   const [name, setName] = React.useState("");
-  const [format, setFormat] = React.useState<"anthropic" | "openai">("anthropic");
+  const [format, setFormat] = React.useState<"anthropic" | "openai" | "openai-responses">("anthropic");
   const [model, setModel] = React.useState("");
   const [baseUrl, setBaseUrl] = React.useState("");
   const [proxy, setProxy] = React.useState("");
@@ -321,7 +321,9 @@ function ProfileSheet({
   React.useEffect(() => {
     if (!open) return;
     setName(profile?.name ?? "");
-    setFormat(profile?.format === "openai" ? "openai" : "anthropic");
+    setFormat(
+      profile?.format === "openai" || profile?.format === "openai-responses" ? profile.format : "anthropic",
+    );
     setModel(profile?.model ?? "");
     setBaseUrl(profile?.base_url ?? "");
     setProxy(profile?.proxy ?? "");
@@ -448,13 +450,14 @@ function ProfileSheet({
             </div>
             <div className="grid gap-2">
               <Label>格式</Label>
-              <Select value={format} onValueChange={(v) => setFormat(v as "anthropic" | "openai")}>
+              <Select value={format} onValueChange={(v) => setFormat(v as "anthropic" | "openai" | "openai-responses")}>
                 <SelectTrigger>
                   <SelectValue placeholder="选择格式" />
                 </SelectTrigger>
                 <SelectContent>
                   <SelectItem value="anthropic">Anthropic</SelectItem>
-                  <SelectItem value="openai">OpenAI</SelectItem>
+                  <SelectItem value="openai">OpenAI (Chat Completions)</SelectItem>
+                  <SelectItem value="openai-responses">OpenAI (Responses API)</SelectItem>
                 </SelectContent>
               </Select>
             </div>

web/src/lib/types.ts

@@ -782,7 +782,7 @@ export interface Settings {
 export interface LLMProfile {
   id: string;
   name: string;
-  format: "openai" | "anthropic";
+  format: "openai" | "anthropic" | "openai-responses";
   base_url?: string;
   proxy?: string;
   model: string;