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/openai_url_test.go

@@ -0,0 +1,32 @@
+package modeladapter
+
+import (
+	"testing"
+)
+
+// 与拉取端 buildModelsEndpoint 的形态矩阵保持对称：
+// 聊天调用对 baseURL 带或不带 /v1 应当同样收敛到正确端点。
+func TestOpenAIEndpointURLResolvesBaseURLShapes(t *testing.T) {
+	cases := []struct {
+		name     string
+		baseURL  string
+		endpoint string
+		want     string
+	}{
+		{"裸 host 追加完整端点", "https://example.com", "/v1/responses", "https://example.com/v1/responses"},
+		{"裸 host 追加 chat completions", "https://example.com", "/v1/chat/completions", "https://example.com/v1/chat/completions"},
+		{"base 以 /v1 结尾时去重拼接", "https://example.com/v1", "/v1/chat/completions", "https://example.com/v1/chat/completions"},
+		{"base 以 /v1 结尾时不重复 /v1", "https://example.com/v1/", "/v1/responses", "https://example.com/v1/responses"},
+		{"base 内嵌 chat completions 时直用", "https://example.com/v1/chat/completions", "/v1/responses", "https://example.com/v1/chat/completions"},
+		{"base 内嵌 responses 时直用", "https://example.com/v1/responses", "/v1/chat/completions", "https://example.com/v1/responses"},
+		{"endpoint 为空时回退默认 responses", "https://example.com", "", "https://example.com/v1/responses"},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			if got := OpenAIEndpointURL(tc.baseURL, tc.endpoint); got != tc.want {
+				t.Fatalf("OpenAIEndpointURL(%q, %q) = %q, 期望 %q", tc.baseURL, tc.endpoint, got, tc.want)
+			}
+		})
+	}
+}