feat: AI 流式服务完善、ProviderHttp 优化及 web-admin API 调整

- AiRuntimeServiceImpl: 流式输出逻辑优化，支持多 Provider 适配
- ProviderHttpSupport: HTTP 请求处理优化
- AiRoutingController: 新增日志查询接口
- AiCallLogService: 分页查询支持
- AiRuntimeRequest: 补充用户字段
- web-admin aiconfig API: 新增分页查询接口

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

web-admin/src/api/aiconfig.ts

@@ -358,6 +358,22 @@ async function fetchSseStream(
   const decoder = new TextDecoder('utf-8')
   let buffer = ''
   let output = ''
+  let recovered = false
+
+  const finishRecovered = (event: AiRuntimeStreamEvent, message?: string) => {
+    if (!output.trim()) return false
+    recovered = true
+    onEvent({
+      type: 'done',
+      metadata: {
+        ...(event.metadata || {}),
+        recovered: true,
+        warningCode: event.code,
+        warningMessage: message || event.message
+      }
+    }, output)
+    return true
+  }
 
   const consumeText = (text: string) => {
     buffer += text
@@ -370,17 +386,28 @@ async function fetchSseStream(
         output += normalizeAiText(event.content || '')
       }
       onEvent(event, output)
+      if (event.type === 'error' && finishRecovered(event)) {
+        return
+      }
       if (event.type === 'error') {
         throw new Error(event.message || event.code || '流式测试失败')
       }
     })
   }
 
-  while (true) {
-    const { value, done } = await reader.read()
-    if (done) break
-    consumeText(decoder.decode(value, { stream: true }))
+  try {
+    while (true) {
+      const { value, done } = await reader.read()
+      if (done) break
+      consumeText(decoder.decode(value, { stream: true }))
+      if (recovered) break
+    }
+  } catch (error: any) {
+    if (!finishRecovered({ type: 'error', message: error?.message })) {
+      throw error
+    }
   }
+  if (recovered) return output
   consumeText(decoder.decode())
   if (buffer.trim()) consumeText('\n\n')
   return output