feat(clickhouse): integrate goose migrations and analytics repository

Merge upstream Wavelet patch to manage ClickHouse DDL via goose
(goose_clickhouse_version), add GORM ChDB access, and centralize
w_user_access_logs reads/writes in internal/repository/analytics.
OpenFlare of_node_access_logs DDL moves to goose/clickhouse; remove
manual clickhouse_schema startup and support-files SQL duplicates.

openflare-server/internal/repository/analytics/browser.go

@@ -0,0 +1,30 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+package analytics
+
+import "strings"
+
+// ParseBrowserName performs lightweight User-Agent browser identification.
+func ParseBrowserName(ua string) string {
+	uaLower := strings.ToLower(ua)
+	if strings.Contains(uaLower, "micromessenger") {
+		return "WeChat"
+	}
+	if strings.Contains(uaLower, "postman") {
+		return "Postman"
+	}
+	if strings.Contains(uaLower, "edg/") || strings.Contains(uaLower, "edge") {
+		return "Edge"
+	}
+	if strings.Contains(uaLower, "firefox") {
+		return "Firefox"
+	}
+	if strings.Contains(uaLower, "chrome") {
+		return "Chrome"
+	}
+	if strings.Contains(uaLower, "safari") {
+		return "Safari"
+	}
+	return "Other"
+}