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/logstore/hourly_test.go

@@ -0,0 +1,52 @@
+package logstore
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+)
+
+func TestHourlyAccessCountsCalendarDay(t *testing.T) {
+	dir := t.TempDir()
+	path := filepath.Join(dir, "access.log")
+	now := time.Now()
+	todayMorning := time.Date(now.Year(), now.Month(), now.Day(), 8, 15, 0, 0, now.Location())
+	todayNoon := time.Date(now.Year(), now.Month(), now.Day(), 11, 30, 0, 0, now.Location())
+	yesterday := todayMorning.Add(-24 * time.Hour)
+	lines := []string{
+		formatAccessLine(todayMorning, "/"),
+		formatAccessLine(todayMorning.Add(30*time.Minute), "/"),
+		formatAccessLine(todayNoon, "/"),
+		formatAccessLine(yesterday, "/"),
+	}
+	if err := os.WriteFile(path, []byte(strings.Join(lines, "\n")), 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	got, labels := HourlyAccessCounts(path)
+	if len(got) != 12 || len(labels) != 12 {
+		t.Fatalf("expected 12 buckets, got %d counts / %d labels", len(got), len(labels))
+	}
+	if labels[0] != "00:00" || labels[11] != "22:00" {
+		t.Fatalf("unexpected labels: %v", labels)
+	}
+	sum := 0
+	for _, n := range got {
+		sum += n
+	}
+	if sum != 3 {
+		t.Fatalf("expected 3 requests today, got %d (%v)", sum, got)
+	}
+	currentBucket := now.Hour() / 2
+	for i := currentBucket + 1; i < 12; i++ {
+		if got[i] != 0 {
+			t.Fatalf("future bucket %d should be 0, got %d", i, got[i])
+		}
+	}
+}
+
+func formatAccessLine(at time.Time, path string) string {
+	return at.Format(time.RFC3339) + " app.example.com GET " + path + " 200 0.010 1.2.3.4 127.0.0.1:8080"
+}