chore: 初始提交 Fonu 1.0.2

- 公网反代：Nginx 状态卡片（版本 / 运行状态 / 配置校验 / 端口监听）
- 部署设置第一、二梯队（HTTPS 开关、安全头、限流、连接数、仅中国大陆 IP）
- 隧道检测兼容 frps v0.68 / v0.71（V2 与旧版端点）
- 恢复被清空的 internal/frp/store.go、internal/api/ddns_handler.go、web/src/views/DdnsView.vue

internal/notify/push_test.go

@@ -0,0 +1,73 @@
+package notify
+
+import (
+	"context"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+)
+
+func TestSendCustomWebhook(t *testing.T) {
+	var body string
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		raw, _ := io.ReadAll(r.Body)
+		body = string(raw)
+		w.WriteHeader(http.StatusOK)
+	}))
+	defer server.Close()
+
+	cfg := RuntimeConfig{
+		Config: Config{
+			Type: NotifyTypeWebhook,
+			Webhook: WebhookConfig{
+				Provider: WebhookCustom,
+				URL:      server.URL,
+			},
+		},
+	}
+	content := FormatAlert("test", "title", "message")
+	if err := SendWebhook(context.Background(), server.Client(), cfg, content); err != nil {
+		t.Fatalf("send custom webhook: %v", err)
+	}
+	if !strings.Contains(body, `"title":"title"`) || !strings.Contains(body, `"message":"message"`) {
+		t.Fatalf("unexpected body: %s", body)
+	}
+	if !strings.Contains(body, `"formatted":`) {
+		t.Fatalf("missing formatted body: %s", body)
+	}
+}
+
+func TestSendNtfyUsesTopic(t *testing.T) {
+	var gotPath string
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		gotPath = r.URL.Path
+		w.WriteHeader(http.StatusOK)
+	}))
+	defer server.Close()
+
+	cfg := RuntimeConfig{
+		Config: Config{
+			Type: NotifyTypeWebhook,
+			Webhook: WebhookConfig{
+				Provider: WebhookNtfy,
+				Server:   server.URL,
+				Topic:    "alerts",
+			},
+		},
+	}
+	if err := SendWebhook(context.Background(), server.Client(), cfg, FormatAlert("test", "title", "message")); err != nil {
+		t.Fatalf("send ntfy: %v", err)
+	}
+	if gotPath != "/alerts" {
+		t.Fatalf("expected /alerts got %s", gotPath)
+	}
+}
+
+func TestJoinURL(t *testing.T) {
+	got := joinURL("https://ntfy.sh", "topic")
+	if got != "https://ntfy.sh/topic" {
+		t.Fatalf("unexpected url: %s", got)
+	}
+}