feat(通知): SafeW 只发正文并注入推送时间

去掉渠道标题前缀，模板可用 pushedAt 显示本地推送时间。

README.md

@@ -307,9 +307,11 @@ Body 同创建。成功：`{"ok": true}`
 
 ```
 ### {{.symbol}} {{case .action "OPEN" "开仓" "CLOSE" "平仓" "GAIN" "止盈" "SELL" "卖出" "ADD" "加仓" "REDUCE" "减仓"}}
-{{line "币种" .symbol}}{{line "周期" .period}}{{line "方向" .side}}{{line "价格" .price}}{{line "平均价" .totalAvgPx}}{{line "止盈价" .takeProfitPrice}}{{line "止损价" .stopLossPrice}}
+{{line "币种" .symbol}}{{line "周期" .period}}{{line "方向" .side}}{{line "价格" .price}}{{line "平均价" .totalAvgPx}}{{line "止盈价" .takeProfitPrice}}{{line "止损价" .stopLossPrice}}{{line "推送时间" .pushedAt}}
 ```
 
+渲染时会自动注入 `event`、`pushedAt`（本地时间 `2006.01.02 15:04:05`）。
+
 也可用事件名：`{{case .event ".open" "开仓" ".close" "平仓"}}`
 
 等价写法：`{{with .totalAvgPx}}平均价：{{.}}{{end}}`
@@ -426,7 +428,7 @@ SMTP 使用全局 `config.yaml` 的 `smtp` 段；支持 587 STARTTLS / 465 TLS
 }
 ```
 
-`chat_id` 可为数字或字符串（含 `@username`）。消息以纯文本发送，不做 Markdown 转义。
+`chat_id` 可为数字或字符串（含 `@username`）。消息以纯文本发送正文，不附带 `{source}: {event}` 标题，也不做 Markdown 转义。
 
 #### `POST /api/v1/channels/safew/chats` — 列出已监控的 SafeW 群
 

internal/adapter/safew.go

@@ -53,7 +53,7 @@ func (s *SafeWSender) Send(title, content string, config json.RawMessage) error
 
 	payload := safewMessage{
 		ChatID: chatID,
-		Text:   title + "\n" + content,
+		Text:   content,
 	}
 	body, err := json.Marshal(payload)
 	if err != nil {

internal/adapter/safew_test.go

@@ -49,7 +49,7 @@ func TestSafeWSenderSendSuccess(t *testing.T) {
 	if gotBody["parse_mode"] != nil && gotBody["parse_mode"] != "" {
 		t.Fatalf("parse_mode = %#v, want omitted/plain", gotBody["parse_mode"])
 	}
-	wantText := "hello_world.\nprice=1.5"
+	wantText := "price=1.5"
 	if gotBody["text"] != wantText {
 		t.Fatalf("text = %#v, want %#v", gotBody["text"], wantText)
 	}

internal/notify/service.go

@@ -8,6 +8,7 @@ import (
 	"log/slog"
 	"strconv"
 	"strings"
+	"time"
 
 	"aiaa-notification-service/internal/condition"
 	"aiaa-notification-service/internal/engine"
@@ -85,6 +86,9 @@ func (s *Service) Process(ctx context.Context, req Request) (Result, error) {
 	if _, ok := req.Data["event"]; !ok && req.Event != "" {
 		req.Data["event"] = req.Event
 	}
+	if _, ok := req.Data["pushedAt"]; !ok {
+		req.Data["pushedAt"] = time.Now().In(time.Local).Format("2006.01.02 15:04:05")
+	}
 
 	content, err := s.renderer.Render(tmpl.Content, req.Data)
 	if err != nil {

internal/notify/service_test.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"encoding/json"
 	"errors"
+	"strings"
 	"testing"
 
 	"aiaa-notification-service/internal/engine"
@@ -28,9 +29,15 @@ func (f *fakeTemplates) GetTemplate(context.Context, int) (*model.Template, erro
 	return f.tmpl, f.err
 }
 
-type fakeRouter struct{ channels []string }
+type fakeRouter struct {
+	channels []string
+	title    string
+	content  string
+}
 
-func (f *fakeRouter) Route(context.Context, *model.Rule, string, string) []string {
+func (f *fakeRouter) Route(_ context.Context, _ *model.Rule, title, content string) []string {
+	f.title = title
+	f.content = content
 	return f.channels
 }
 
@@ -111,6 +118,29 @@ func TestProcessTemplateCanSwitchOnEvent(t *testing.T) {
 	}
 }
 
+func TestProcessInjectsPushedAt(t *testing.T) {
+	rt := &fakeRouter{channels: []string{"safew:1"}}
+	svc := newSvc(
+		&fakeMatcher{rule: &model.Rule{ID: 9, TemplateID: 1}},
+		&fakeTemplates{tmpl: &model.Template{ID: 1, Content: `{{line "推送时间" .pushedAt}}`}},
+		rt,
+	)
+	res, err := svc.Process(context.Background(), Request{
+		Source: &model.Source{ID: 1, Name: "crypto-strategy"},
+		Event:  "trade.open",
+		Data:   map[string]interface{}{"symbol": "QNT"},
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !res.Matched {
+		t.Fatalf("%+v", res)
+	}
+	if !strings.Contains(rt.content, "推送时间：") {
+		t.Fatalf("content=%q", rt.content)
+	}
+}
+
 func TestProcessInvalidConditions(t *testing.T) {
 	raw := json.RawMessage(`not-json`)
 	svc := newSvc(&fakeMatcher{rule: &model.Rule{ID: 1, TemplateID: 1, Conditions: &raw}}, &fakeTemplates{}, &fakeRouter{})