feat(钉钉通道): 支持仅使用 access_token 配置钉钉机器人

Motivation:
钉钉机器人的 webhook 前缀固定不变，要求用户填写完整 URL 冗余且容易出错。简化通道配置项，降低接入配置成本，同时保证存量配置不受影响。

Changes:

* 钉钉通道配置改用 access_token，webhook 前缀由内部固定拼接
* 保留对旧 webhook_url 配置的兼容，access_token 存在时优先生效
* 新增 webhook 地址解析逻辑的单元测试，覆盖优先级与回退场景
* 同步更新 README、HTTP 请求示例及设计文档中的配置示例
* E2E 测试改用 E2E_DINGTALK_ACCESS_TOKEN 环境变量并按新格式创建通道

README.md

@@ -388,12 +388,12 @@ Query：`page`、`page_size`（默认同 sources）。**200：** `{ "data": Temp
 
 ```json
 {
-  "webhook_url": "https://oapi.dingtalk.com/robot/send?access_token=xxx",
+  "access_token": "xxx",
   "secret": "SEC..."
 }
 ```
 
-`secret` 可选（加签机器人时填写）。消息类型：markdown。
+`secret` 可选（加签机器人时填写），webhook 前缀固定，无需填写完整 URL。消息类型：markdown。
 
 **企业微信 `wecom`**
 
@@ -605,7 +605,7 @@ curl -s -X POST http://localhost:8080/api/v1/channels \
   -d '{
     "name":"dingtalk-prod",
     "type":"dingtalk",
-    "config":{"webhook_url":"https://oapi.dingtalk.com/robot/send?access_token=xxx","secret":"SEC..."}
+    "config":{"access_token":"xxx","secret":"SEC..."}
   }'
 
 # 4. 创建规则

docs/httpie/curls.md

@@ -221,7 +221,7 @@ curl -X POST 'http://localhost:8080/api/v1/channels' \
     "name": "dingtalk-prod",
     "type": "dingtalk",
     "config": {
-      "webhook_url": "https://oapi.dingtalk.com/robot/send?access_token=xxx",
+      "access_token": "xxx",
       "secret": "SEC..."
     },
     "status": 1

docs/httpie/postman_collection.json

@@ -312,7 +312,7 @@
             ],
             "body": {
               "mode": "raw",
-              "raw": "{\n  \"name\": \"dingtalk-prod\",\n  \"type\": \"dingtalk\",\n  \"config\": {\n    \"webhook_url\": \"https://oapi.dingtalk.com/robot/send?access_token=xxx\",\n    \"secret\": \"SEC...\"\n  },\n  \"status\": 1\n}"
+              "raw": "{\n  \"name\": \"dingtalk-prod\",\n  \"type\": \"dingtalk\",\n  \"config\": {\n    \"access_token\": \"xxx\",\n    \"secret\": \"SEC...\"\n  },\n  \"status\": 1\n}"
             },
             "url": "{{baseUrl}}/api/v1/channels"
           }

docs/superpowers/specs/2025-06-27-notification-service-design.md

@@ -262,7 +262,7 @@ POST /api/v1/channels
   "name": "dingtalk-prod",
   "type": "dingtalk",
   "config": {
-    "webhook_url": "https://oapi.dingtalk.com/robot/send?access_token=xxx",
+    "access_token": "xxx",
     "secret": "SEC..."
   }
 }

internal/adapter/dingtalk.go

@@ -13,9 +13,21 @@ import (
 	"time"
 )
 
+// 钉钉自定义机器人 webhook 前缀固定，配置时只需提供 access_token
+const dingtalkWebhookPrefix = "https://oapi.dingtalk.com/robot/send?access_token="
+
 type dingtalkConfig struct {
-	WebhookURL string `json:"webhook_url"`
-	Secret     string `json:"secret,omitempty"`
+	AccessToken string `json:"access_token"`
+	Secret      string `json:"secret,omitempty"`
+	// WebhookURL 兼容旧配置；新配置优先使用 AccessToken
+	WebhookURL string `json:"webhook_url,omitempty"`
+}
+
+func (c *dingtalkConfig) webhookURL() string {
+	if c.AccessToken != "" {
+		return dingtalkWebhookPrefix + c.AccessToken
+	}
+	return c.WebhookURL
 }
 
 type dingtalkMessage struct {
@@ -41,16 +53,16 @@ func (s *DingTalkSender) Send(title, content string, config json.RawMessage) err
 	}
 
 	if s.limiter != nil {
-		if err := s.limiter.Acquire(context.Background(), DingTalkLimitKey(cfg.WebhookURL)); err != nil {
+		if err := s.limiter.Acquire(context.Background(), DingTalkLimitKey(cfg.webhookURL())); err != nil {
 			return fmt.Errorf("dingtalk rate limit: %w", err)
 		}
 	}
 
-	reqURL := cfg.WebhookURL
+	reqURL := cfg.webhookURL()
 	if cfg.Secret != "" {
 		timestamp := time.Now().UnixMilli()
 		sign := dingtalkSign(timestamp, cfg.Secret)
-		reqURL = fmt.Sprintf("%s&timestamp=%d&sign=%s", cfg.WebhookURL, timestamp, sign)
+		reqURL = fmt.Sprintf("%s&timestamp=%d&sign=%s", reqURL, timestamp, sign)
 	}
 
 	msg := dingtalkMessage{

internal/adapter/dingtalk_test.go

@@ -0,0 +1,34 @@
+package adapter
+
+import "testing"
+
+func TestDingtalkConfigWebhookURL(t *testing.T) {
+	tests := []struct {
+		name    string
+		cfg     dingtalkConfig
+		wantURL string
+	}{
+		{
+			name:    "access token only",
+			cfg:     dingtalkConfig{AccessToken: "tok-abc"},
+			wantURL: "https://oapi.dingtalk.com/robot/send?access_token=tok-abc",
+		},
+		{
+			name:    "access token takes precedence over legacy url",
+			cfg:     dingtalkConfig{AccessToken: "tok-abc", WebhookURL: "https://legacy.example/webhook"},
+			wantURL: "https://oapi.dingtalk.com/robot/send?access_token=tok-abc",
+		},
+		{
+			name:    "fallback to legacy url",
+			cfg:     dingtalkConfig{WebhookURL: "https://legacy.example/webhook"},
+			wantURL: "https://legacy.example/webhook",
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := tt.cfg.webhookURL(); got != tt.wantURL {
+				t.Fatalf("webhookURL() = %q, want %q", got, tt.wantURL)
+			}
+		})
+	}
+}

test/e2e/notify_flow_test.go

@@ -33,23 +33,23 @@ type fixture struct {
 	chEmail  string
 }
 
-func requireE2EEnv(t *testing.T) (base, adminKey, dingWebhook, dingSecret, barkURL, emailTo string) {
+func requireE2EEnv(t *testing.T) (base, adminKey, dingAccessToken, dingSecret, barkURL, emailTo string) {
 	t.Helper()
 	base = envOr("E2E_BASE_URL", "http://82.157.251.93:8080")
 	adminKey = envOr("E2E_ADMIN_KEY", "admin-sk-change-me")
-	dingWebhook = os.Getenv("E2E_DINGTALK_WEBHOOK")
+	dingAccessToken = os.Getenv("E2E_DINGTALK_ACCESS_TOKEN")
 	dingSecret = os.Getenv("E2E_DINGTALK_SECRET")
 	barkURL = os.Getenv("E2E_BARK_URL")
 	emailTo = os.Getenv("E2E_EMAIL_TO")
-	if dingWebhook == "" || dingSecret == "" || barkURL == "" || emailTo == "" {
-		t.Skip("missing E2E_DINGTALK_WEBHOOK / E2E_DINGTALK_SECRET / E2E_BARK_URL / E2E_EMAIL_TO")
+	if dingAccessToken == "" || dingSecret == "" || barkURL == "" || emailTo == "" {
+		t.Skip("missing E2E_DINGTALK_ACCESS_TOKEN / E2E_DINGTALK_SECRET / E2E_BARK_URL / E2E_EMAIL_TO")
 	}
 	return
 }
 
 func setupFixture(t *testing.T) *fixture {
 	t.Helper()
-	base, adminKey, dingWebhook, dingSecret, barkURL, emailTo := requireE2EEnv(t)
+	base, adminKey, dingAccessToken, dingSecret, barkURL, emailTo := requireE2EEnv(t)
 	client := &http.Client{Timeout: 30 * time.Second}
 	suffix := fmt.Sprintf("%d", time.Now().UnixNano())
 
@@ -81,7 +81,7 @@ func setupFixture(t *testing.T) *fixture {
 
 	ding := mustAdminJSON(t, client, base, adminKey, http.MethodPost, "/api/v1/channels", map[string]any{
 		"name": f.chDing, "type": "dingtalk", "status": 1,
-		"config": map[string]string{"webhook_url": dingWebhook, "secret": dingSecret},
+		"config": map[string]string{"access_token": dingAccessToken, "secret": dingSecret},
 	}, http.StatusCreated)
 	f.dingID = intFrom(ding["id"])
 	t.Cleanup(func() {
@@ -288,7 +288,7 @@ func TestNotifyFlow_DisableRule(t *testing.T) {
 // TestNotifyFlow_DifferentTemplatesPerRule verifies rule→template binding:
 // same source, three events, each with a distinct template and a single channel.
 func TestNotifyFlow_DifferentTemplatesPerRule(t *testing.T) {
-	base, adminKey, dingWebhook, dingSecret, barkURL, emailTo := requireE2EEnv(t)
+	base, adminKey, dingAccessToken, dingSecret, barkURL, emailTo := requireE2EEnv(t)
 	client := &http.Client{Timeout: 30 * time.Second}
 	suffix := fmt.Sprintf("%d", time.Now().UnixNano())
 	srcName := "e2e-mt-" + suffix
@@ -320,7 +320,7 @@ func TestNotifyFlow_DifferentTemplatesPerRule(t *testing.T) {
 			marker: "DING-TMPL",
 			chName: "e2e-mtd-" + suffix,
 			chType: "dingtalk",
-			chCfg:  map[string]any{"webhook_url": dingWebhook, "secret": dingSecret},
+			chCfg:  map[string]any{"access_token": dingAccessToken, "secret": dingSecret},
 			tmpl:   "DING-TMPL {{.symbol}} ding price={{.price}}",
 		},
 		{