feat(规则): 支持名称代号，便于区分和管理

创建与更新规则时必填全局唯一 name，已有规则迁移回填为 rule-{id}。

internal/handler/rule_test.go

@@ -0,0 +1,43 @@
+package handler
+
+import (
+	"bytes"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/gin-gonic/gin"
+)
+
+func TestCreateRuleReqBindsName(t *testing.T) {
+	var req createRuleReq
+	err := json.Unmarshal([]byte(`{
+		"name":"高低分短线",
+		"source_name":"crypto-strategy",
+		"event":"HLSS.*",
+		"template_name":"高低分短线"
+	}`), &req)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if req.Name != "高低分短线" {
+		t.Fatalf("name=%q", req.Name)
+	}
+}
+
+func TestCreateRuleRequiresName(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	h := NewRuleHandler(nil, nil)
+	r := gin.New()
+	r.POST("/api/v1/rules", h.Create)
+	req := httptest.NewRequest(http.MethodPost, "/api/v1/rules", bytes.NewReader([]byte(
+		`{"source_name":"s","event":"trade.open","template_name":"t"}`,
+	)))
+	req.Header.Set("Content-Type", "application/json")
+	w := httptest.NewRecorder()
+	r.ServeHTTP(w, req)
+	if w.Code != http.StatusBadRequest {
+		t.Fatalf("code=%d body=%s", w.Code, w.Body.String())
+	}
+}