feat add jwt secret ops status

backend/internal/handler/admin/ops_handler.go

@@ -942,3 +942,20 @@ func (h *OpsHandler) GetUsageLogsPartitionStatus(c *gin.Context) {
 
 	response.Success(c, status)
 }
+
+// GetJWTSecretStatus returns operational status of the JWT signing secret.
+// GET /api/v1/admin/ops/jwt-secret-status
+func (h *OpsHandler) GetJWTSecretStatus(c *gin.Context) {
+	if h.opsService == nil {
+		response.Error(c, http.StatusServiceUnavailable, "Ops service not available")
+		return
+	}
+
+	status, err := h.opsService.GetJWTSecretStatus(c.Request.Context())
+	if err != nil {
+		response.ErrorFrom(c, err)
+		return
+	}
+
+	response.Success(c, status)
+}