vpnem: VPN infrastructure with load-balanced multi-protocol nodesHEADmain

- Multi-protocol VPS nodes (VLESS-REALITY + Hysteria2 + SOCKS5)
- Smart load balancing via recommendation API
- Windows/Linux client (Go + Wails + sing-box)
- Server API with RealIP detection and connection tracking
- Auto-deployment via vpnui control plane
- Silent Windows installer with UAC elevation
- Load-based server recommendation (no sticky sessions)
- Best Server one-click connection workflow

1 files changed, 35 insertions, 0 deletions

diff --git a/internal/models/catalog.go b/internal/models/catalog.go
new file mode 100644
index 0000000..eda61cd
--- /dev/null
+++ b/internal/models/catalog.go
@@ -0,0 +1,35 @@
+package models
+
+type CatalogV2 struct {
+	Version string        `json:"version"`
+	Nodes   []CatalogNode `json:"nodes"`
+}
+
+type CatalogNode struct {
+	ID         string            `json:"id"`
+	Name       string            `json:"name"`
+	Provider   string            `json:"provider,omitempty"`
+	Region     string            `json:"region"`
+	Host       string            `json:"host"`
+	Domain     string            `json:"domain,omitempty"`
+	PublicHost string            `json:"public_host"`
+	Protocols  []CatalogProtocol `json:"protocols"`
+	Status     string            `json:"status,omitempty"`
+	Tags       []string          `json:"tags,omitempty"`
+	Metadata   map[string]any    `json:"metadata,omitempty"`
+}
+
+type CatalogProtocol struct {
+	Type    string         `json:"type"`
+	Enabled bool           `json:"enabled"`
+	Port    int            `json:"port"`
+	TLS     *TLS           `json:"tls,omitempty"`
+	Auth    *CatalogAuth   `json:"auth,omitempty"`
+	Extra   map[string]any `json:"extra,omitempty"`
+}
+
+type CatalogAuth struct {
+	UUID     string `json:"uuid,omitempty"`
+	Method   string `json:"method,omitempty"`
+	Password string `json:"password,omitempty"`
+}