Add Go VPN admin panel with Docker Compose and Postgres 17.

Co-authored-by: Cursor <cursoragent@cursor.com>

internal/models/models.go

@@ -0,0 +1,34 @@
+package models
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+)
+
+type User struct {
+	ID           uuid.UUID `json:"id"`
+	Email        string    `json:"email"`
+	PasswordHash string    `json:"-"`
+	Name         string    `json:"name"`
+	Role         string    `json:"role"`
+	CreatedAt    time.Time `json:"created_at"`
+}
+
+type Protocol struct {
+	ID          uuid.UUID `json:"id"`
+	Code        string    `json:"code"`
+	Name        string    `json:"name"`
+	Description string    `json:"description"`
+	Port        int       `json:"port"`
+	Enabled     bool      `json:"enabled"`
+	SortOrder   int       `json:"sort_order"`
+	CreatedAt   time.Time `json:"created_at"`
+	UpdatedAt   time.Time `json:"updated_at"`
+}
+
+type DashboardStats struct {
+	ProtocolsTotal   int
+	ProtocolsEnabled int
+	AdminsTotal      int
+}