정합성 위반사항 확인 및 조치기능 추가

backend/internal/handler/admin_handler.go

@@ -169,6 +169,43 @@ func (h *AdminHandler) GetDataIntegrity(c *fiber.Ctx) error {
 	return c.JSON(report)
 }
 
+func (h *AdminHandler) ListOrphanUserLoginIDs(c *fiber.Ctx) error {
+	if !requireSuperAdminProfile(c) {
+		return nil
+	}
+	if h == nil || h.IntegrityChecker == nil {
+		return c.Status(fiber.StatusServiceUnavailable).JSON(fiber.Map{"error": "data integrity checker unavailable"})
+	}
+	items, err := h.IntegrityChecker.ListOrphanUserLoginIDs(c.Context())
+	if err != nil {
+		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{"error": err.Error()})
+	}
+	return c.JSON(fiber.Map{
+		"items": items,
+		"total": len(items),
+	})
+}
+
+func (h *AdminHandler) DeleteOrphanUserLoginIDs(c *fiber.Ctx) error {
+	if !requireSuperAdminProfile(c) {
+		return nil
+	}
+	if h == nil || h.IntegrityChecker == nil {
+		return c.Status(fiber.StatusServiceUnavailable).JSON(fiber.Map{"error": "data integrity checker unavailable"})
+	}
+	var req struct {
+		IDs []string `json:"ids"`
+	}
+	if err := c.BodyParser(&req); err != nil {
+		return errorJSON(c, fiber.StatusBadRequest, "invalid request body")
+	}
+	result, err := h.IntegrityChecker.DeleteOrphanUserLoginIDs(c.Context(), req.IDs)
+	if err != nil {
+		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{"error": err.Error()})
+	}
+	return c.JSON(result)
+}
+
 // GetSystemStats returns runtime statistics for monitoring
 func (h *AdminHandler) GetSystemStats(c *fiber.Ctx) error {
 	var m runtime.MemStats