feat: add admin audit log endpoint

admin_users.go

@@ -82,6 +82,19 @@ func (a *App) adminCreateUser(c *gin.Context) {
 	c.JSON(201, u)
 }
 
+func (a *App) adminAudit(c *gin.Context) {
+	var logs []AuditLog
+	q := a.db.Order("id desc").Limit(200)
+	if action := c.Query("action"); action != "" {
+		q = q.Where("action = ?", action)
+	}
+	if err := q.Find(&logs).Error; err != nil {
+		c.JSON(500, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(200, gin.H{"data": logs})
+}
+
 func (a *App) adminUpdateUser(c *gin.Context) {
 	id, err := strconv.ParseUint(c.Param("id"), 10, 64)
 	if err != nil {

main.go

@@ -50,6 +50,7 @@ func main() {
 	auth.DELETE("/tasks/:id", a.requirePermission(PermDownload), a.deleteTask)
 	admin := api.Group("/admin", a.requireAuth, a.requireAdmin)
 	admin.GET("/users", a.adminListUsers)
+	admin.GET("/audit", a.adminAudit)
 	admin.POST("/users", a.adminCreateUser)
 	admin.PUT("/users/:id", a.adminUpdateUser)
 	admin.GET("/redeem", a.adminListRedeemBatches)