chore: import Local-Cursor v1.1.8 source snapshot

Includes the current working directory changes. Historical commits and release binaries are excluded to limit Gitea storage.
Source base: d7515973fbfd6dd2001fa156c483455b8081c7cb

internal/backend/agent/model/retry.go

@@ -0,0 +1,49 @@
+// retry.go 保留 provider HTTP 请求入口的历史命名；provider 错误交给客户端重连链路处理。
+package modeladapter
+
+import (
+	"context"
+	"net/http"
+)
+
+// DoProviderRequestWithRetry 保留旧入口名；本地模式不在服务端重试 provider 请求。
+func DoProviderRequestWithRetry(
+	ctx context.Context,
+	client *http.Client,
+	provider string,
+	requestID string,
+	modelCallID string,
+	buildRequest func(context.Context) (*http.Request, error),
+) (*http.Response, error) {
+	return doProviderRequestWithRetry(ctx, client, provider, requestID, modelCallID, buildRequest)
+}
+
+func doProviderRequestWithRetry(
+	ctx context.Context,
+	client *http.Client,
+	provider string,
+	requestID string,
+	modelCallID string,
+	buildRequest func(context.Context) (*http.Request, error),
+) (*http.Response, error) {
+	if client == nil {
+		client = http.DefaultClient
+	}
+	httpReq, err := buildRequest(ctx)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Do(httpReq)
+	if err != nil {
+		if resp != nil && resp.Body != nil {
+			_ = resp.Body.Close()
+		}
+		return nil, err
+	}
+	return resp, nil
+}
+
+// ProviderRetryAttemptSummary 返回空值；provider 请求不再有服务端内部重试摘要。
+func ProviderRetryAttemptSummary(resp *http.Response) string {
+	return ""
+}