feat: initialize shared tenant workbench data

server/internal/library/imworkbench/client_test.go

@@ -0,0 +1,37 @@
+package imworkbench
+
+import (
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+)
+
+func TestPostForTenantAddsTenantHeaders(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if got := r.Header.Get("X-Tenant-ID"); got != "23" {
+			t.Fatalf("X-Tenant-ID = %q, want 23", got)
+		}
+		if got := r.Header.Get("X-Tenant-Code"); got != "merchant-23" {
+			t.Fatalf("X-Tenant-Code = %q, want merchant-23", got)
+		}
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = w.Write([]byte(`{"code":0,"data":{"tenant_id":23}}`))
+	}))
+	defer server.Close()
+
+	client := &Client{
+		conf: Config{BaseURL: server.URL, ServiceName: "test", Secret: "secret", Timeout: time.Second},
+		http: server.Client(),
+	}
+	var response struct {
+		TenantID int64 `json:"tenant_id"`
+	}
+	if err := client.PostForTenant(context.Background(), "/initialize", map[string]any{"tenant_id": 23}, 23, "merchant-23", &response); err != nil {
+		t.Fatal(err)
+	}
+	if response.TenantID != 23 {
+		t.Fatalf("tenant_id = %d, want 23", response.TenantID)
+	}
+}