feat(cloudflare): add DNS pointing integration

Implement Cloudflare connection management, pointing groups and members, asynchronous A-record reconciliation, node IP triggers, admin APIs, management pages, migrations, tests, and documentation.

internal/apps/openflare/cloudflare/routers_test.go

@@ -0,0 +1,43 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+package cloudflare
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"github.com/Rain-kl/Wavelet/internal/shared/response"
+	"github.com/gin-gonic/gin"
+)
+
+func TestConnectionHandlersNeverReturnAPIToken(t *testing.T) {
+	setupCloudflareLogicDB(t)
+	gin.SetMode(gin.TestMode)
+	router := gin.New()
+	router.Use(response.ErrorHandlerMiddleware())
+	router.PUT("/connection", SaveConnectionHandler)
+	router.GET("/connection", GetConnectionHandler)
+
+	save := httptest.NewRecorder()
+	request := httptest.NewRequest(http.MethodPut, "/connection", strings.NewReader(`{"source":"standalone","api_token":"top-secret-token"}`))
+	request.Header.Set("Content-Type", "application/json")
+	router.ServeHTTP(save, request)
+	if save.Code != http.StatusOK {
+		t.Fatalf("PUT /connection status = %d, body = %s", save.Code, save.Body.String())
+	}
+	if strings.Contains(save.Body.String(), "top-secret-token") || strings.Contains(save.Body.String(), "api_token") {
+		t.Fatalf("PUT /connection leaked token: %s", save.Body.String())
+	}
+
+	get := httptest.NewRecorder()
+	router.ServeHTTP(get, httptest.NewRequest(http.MethodGet, "/connection", nil))
+	if get.Code != http.StatusOK {
+		t.Fatalf("GET /connection status = %d, body = %s", get.Code, get.Body.String())
+	}
+	if strings.Contains(get.Body.String(), "top-secret-token") || strings.Contains(get.Body.String(), "api_token") {
+		t.Fatalf("GET /connection leaked token: %s", get.Body.String())
+	}
+}