diff --git a/backend/src/db/seeders/20200430130760-user-roles.js b/backend/src/db/seeders/20200430130760-user-roles.js
index bb2caf3..82ba410 100644
--- a/backend/src/db/seeders/20200430130760-user-roles.js
+++ b/backend/src/db/seeders/20200430130760-user-roles.js
@@ -90,86 +90,6 @@ await queryInterface.bulkInsert("rolesPermissionsPermissions", [
                 
                   
                     
-                      { createdAt, updatedAt, roles_permissionsId: getId("PlatformOwner"), permissionId: getId('CREATE_USERS') },
-                    
-                  
-                    
-                      { createdAt, updatedAt, roles_permissionsId: getId("PlatformOwner"), permissionId: getId('READ_USERS') },
-                    
-                  
-                    
-                      { createdAt, updatedAt, roles_permissionsId: getId("PlatformOwner"), permissionId: getId('UPDATE_USERS') },
-                    
-                  
-                    
-                      { createdAt, updatedAt, roles_permissionsId: getId("PlatformOwner"), permissionId: getId('DELETE_USERS') },
-                    
-                  
-                  
-                
-               
-                
-                  
-                    
-                  
-                    
-                      { createdAt, updatedAt, roles_permissionsId: getId("SupportLead"), permissionId: getId('READ_USERS') },
-                    
-                  
-                    
-                      { createdAt, updatedAt, roles_permissionsId: getId("SupportLead"), permissionId: getId('UPDATE_USERS') },
-                    
-                  
-                    
-                  
-                  
-                
-               
-                
-                  
-                    
-                  
-                    
-                      { createdAt, updatedAt, roles_permissionsId: getId("AgentCurator"), permissionId: getId('READ_USERS') },
-                    
-                  
-                    
-                  
-                    
-                  
-                  
-                
-               
-                
-                  
-                    
-                  
-                    
-                      { createdAt, updatedAt, roles_permissionsId: getId("Analyst"), permissionId: getId('READ_USERS') },
-                    
-                  
-                    
-                  
-                    
-                  
-                  
-                
-               
-                
-                  
-                    
-                  
-                    
-                      { createdAt, updatedAt, roles_permissionsId: getId("Member"), permissionId: getId('READ_USERS') },
-                    
-                  
-                    
-                      { createdAt, updatedAt, roles_permissionsId: getId("Member"), permissionId: getId('UPDATE_USERS') },
-                    
-                  
-                    
-                  
-                  
              
           
     
@@ -749,4 +669,3 @@ await queryInterface.bulkInsert("rolesPermissionsPermissions", [
 
 }
 };
-
diff --git a/backend/src/middlewares/check-permissions.js b/backend/src/middlewares/check-permissions.js
index 77740c7..75879ab 100644
--- a/backend/src/middlewares/check-permissions.js
+++ b/backend/src/middlewares/check-permissions.js
@@ -2,6 +2,13 @@
 const ValidationError = require('../services/notifications/errors/validation');
 const RolesDBApi = require('../db/api/roles');
 
+const USER_PERMISSIONS = new Set([
+    'CREATE_USERS',
+    'READ_USERS',
+    'UPDATE_USERS',
+    'DELETE_USERS',
+]);
+
 // Cache for the 'Public' role object
 let publicRoleCache = null;
 
@@ -47,7 +54,16 @@ function checkPermissions(permission) {
             return next(); // User has access to their own resource
         }
 
-        // 2. Check Custom Permissions (only if the user is authenticated)
+        // 2. Only administrators can use global users permissions.
+        if (USER_PERMISSIONS.has(permission)) {
+            const roleName = currentUser?.app_role?.name;
+
+            if (roleName !== 'Administrator') {
+                return next(new ValidationError('auth.forbidden', `Role '${roleName || 'anonymous'}' denied access to '${permission}'.`));
+            }
+        }
+
+        // 3. Check Custom Permissions (only if the user is authenticated)
         if (currentUser) {
             // Ensure custom_permissions is an array before using find
             const customPermissions = Array.isArray(currentUser.custom_permissions)
@@ -61,7 +77,7 @@ function checkPermissions(permission) {
             }
         }
 
-        // 3. Determine the "effective" role for permission check
+        // 4. Determine the "effective" role for permission check
         let effectiveRole = null;
         try {
             if (currentUser && currentUser.app_role) {
@@ -90,7 +106,7 @@ function checkPermissions(permission) {
                 return next(new Error("Internal Server Error: Could not determine effective role."));
             }
 
-            // 4. Check Permissions on the "effective" role
+            // 5. Check Permissions on the "effective" role
             // Assume the effectiveRole object (from app_role or RolesDBApi) has a getPermissions() method
             // or a 'permissions' property (if permissions are eagerly loaded).
             let rolePermissions = [];
@@ -146,4 +162,3 @@ module.exports = {
     checkPermissions,
     checkCrudPermissions,
 };
-
diff --git a/frontend/src/components/Agents/TableAgents.tsx b/frontend/src/components/Agents/TableAgents.tsx
index 40711df..fdd69cc 100644
--- a/frontend/src/components/Agents/TableAgents.tsx
+++ b/frontend/src/components/Agents/TableAgents.tsx
@@ -16,6 +16,7 @@ import {loadColumns} from "./configureAgentsCols";
 import _ from 'lodash';
 import dataFormatter from '../../helpers/dataFormatter'
 import {dataGridStyles} from "../../styles";
+import DataGridLoadingOverlay from '../DataGridLoadingOverlay';
 
 
 
@@ -45,6 +46,7 @@ const TableSampleAgents = ({ filterItems, setFilterItems, filters, showGrid }) =
   const focusRing = useAppSelector((state) => state.style.focusRingColor);
   const bgColor = useAppSelector((state) => state.style.bgLayoutColor);
   const corners = useAppSelector((state) => state.style.corners);
+  const isDataGridLoading = !currentUser || loading || columns.length === 0;
     const numPages = Math.floor(count / perPage) === 0 ? 1 : Math.ceil(count / perPage);
     for (let i = 0; i < numPages; i++) {
         pagesList.push(i);
@@ -211,7 +213,8 @@ const TableSampleAgents = ({ filterItems, setFilterItems, filters, showGrid }) =
         <div  className='relative overflow-x-auto'>
           <DataGrid
               autoHeight
-              rowHeight={64}
+              rowHeight={56}
+              columnHeaderHeight={48}
               sx={dataGridStyles}
               className={'datagrid--table'}
               getRowClassName={() => `datagrid--row`}
@@ -251,7 +254,10 @@ const TableSampleAgents = ({ filterItems, setFilterItems, filters, showGrid }) =
               rowCount={count}
               pageSizeOptions={[10]}
               paginationMode={'server'}
-              loading={loading}
+              loading={isDataGridLoading}
+              slots={{
+                  loadingOverlay: DataGridLoadingOverlay,
+              }}
               onPaginationModelChange={(params) => {
                   onPageChange(params.page);
               }}
diff --git a/frontend/src/components/Agents/configureAgentsCols.tsx b/frontend/src/components/Agents/configureAgentsCols.tsx
index 8136752..d1b2d47 100644
--- a/frontend/src/components/Agents/configureAgentsCols.tsx
+++ b/frontend/src/components/Agents/configureAgentsCols.tsx
@@ -12,6 +12,7 @@ import {saveFile} from "../../helpers/fileSaver";
 import dataFormatter from '../../helpers/dataFormatter'
 import DataGridMultiSelect from "../DataGridMultiSelect";
 import ListActionsPopover from '../ListActionsPopover';
+import { makeReadableColumns } from '../../helpers/dataGridColumns';
 
 import {hasPermission} from "../../helpers/userPermissions";
 
@@ -39,7 +40,7 @@ export const loadColumns = async (
     
     const hasUpdatePermission = hasPermission(user, 'UPDATE_AGENTS')
     
-    return [
+    const columns = [
         
         {
             field: 'name',
@@ -204,4 +205,6 @@ export const loadColumns = async (
             },
         },
     ];
+
+    return makeReadableColumns(columns);
 };
diff --git a/frontend/src/components/AsideMenu.tsx b/frontend/src/components/AsideMenu.tsx
index 0e878ea..e53d84c 100644
--- a/frontend/src/components/AsideMenu.tsx
+++ b/frontend/src/components/AsideMenu.tsx
@@ -1,30 +1,18 @@
 import React from 'react'
 import { MenuAsideItem } from '../interfaces'
 import AsideMenuLayer from './AsideMenuLayer'
-import OverlayLayer from './OverlayLayer'
 
 type Props = {
   menu: MenuAsideItem[]
-  isAsideMobileExpanded: boolean
-  isAsideLgActive: boolean
-  onAsideLgClose: () => void
 }
 
 export default function AsideMenu({
-  isAsideMobileExpanded = false,
-  isAsideLgActive = false,
   ...props
 }: Props) {
   return (
-    <>
-      <AsideMenuLayer
-        menu={props.menu}
-        className={`${isAsideMobileExpanded ? 'left-0' : '-left-64 lg:left-0'} ${
-          !isAsideLgActive ? 'lg:hidden xl:flex' : ''
-        }`}
-        onAsideLgCloseClick={props.onAsideLgClose}
-      />
-      {isAsideLgActive && <OverlayLayer zIndex="z-30" onClick={props.onAsideLgClose} />}
-    </>
+    <AsideMenuLayer
+      menu={props.menu}
+      className="left-0"
+    />
   )
 }
diff --git a/frontend/src/components/AsideMenuLayer.tsx b/frontend/src/components/AsideMenuLayer.tsx
index 5b39d36..eb55e27 100644
--- a/frontend/src/components/AsideMenuLayer.tsx
+++ b/frontend/src/components/AsideMenuLayer.tsx
@@ -1,6 +1,4 @@
 import React from 'react'
-import { mdiClose } from '@mdi/js'
-import BaseIcon from './BaseIcon'
 import AsideMenuList from './AsideMenuList'
 import { MenuAsideItem } from '../interfaces'
 import { useAppSelector } from '../stores/hooks'
@@ -9,49 +7,36 @@ import { useAppSelector } from '../stores/hooks'
 type Props = {
   menu: MenuAsideItem[]
   className?: string
-  onAsideLgCloseClick: () => void
 }
 
-export default function AsideMenuLayer({ menu, className = '', ...props }: Props) {
+export default function AsideMenuLayer({ menu, className = '' }: Props) {
   const asideScrollbarsStyle = useAppSelector((state) => state.style.asideScrollbarsStyle)
   const darkMode = useAppSelector((state) => state.style.darkMode)
 
-  const handleAsideLgCloseClick = (e: React.MouseEvent) => {
-    e.preventDefault()
-    props.onAsideLgCloseClick()
-  }
-
 
   return (
     <aside
       id='asideMenu'
-      className={`${className} fixed top-12 z-40 flex h-[calc(100vh-3rem)] w-64 overflow-hidden px-2 pb-2 transition-position`}
+      className={`${className} fixed inset-y-0 z-40 flex h-screen w-64 overflow-hidden border-r border-slate-200 bg-white transition-position shadow-[0_24px_60px_-42px_rgba(15,23,42,0.28)] lg:shadow-none dark:border-dark-700 dark:bg-dark-900`}
     >
       <div
-        className="flex flex-1 flex-col overflow-hidden rounded-[10px] border border-slate-200 bg-white shadow-none dark:border-dark-700 dark:bg-dark-900"
+        className="flex flex-1 flex-col overflow-hidden bg-white dark:bg-dark-900"
       >
         <div
-          className="flex h-11 items-center justify-between border-b border-slate-200 px-4 dark:border-dark-700"
+          className="flex h-12 items-center justify-between border-b border-slate-200 px-5 dark:border-dark-700"
         >
           <div className="min-w-0 flex-1">
-            <span className="block truncate text-[14px] font-semibold tracking-[-0.02em] text-slate-900 dark:text-white">
+            <span className="block truncate text-[15px] font-semibold tracking-[-0.03em] text-slate-900 dark:text-white">
               AI Chat Workspace
             </span>
           </div>
-          <button
-            className="hidden rounded-[8px] border border-slate-200 bg-white p-2 text-slate-500 lg:inline-flex xl:hidden dark:border-dark-700 dark:bg-dark-900 dark:text-slate-300"
-            onClick={handleAsideLgCloseClick}
-            type="button"
-          >
-            <BaseIcon path={mdiClose} size={16} />
-          </button>
         </div>
         <div
           className={`flex-1 overflow-y-auto overflow-x-hidden ${
             darkMode ? 'aside-scrollbars-[slate]' : asideScrollbarsStyle
           }`}
         >
-          <AsideMenuList className="px-2 py-2.5" menu={menu} />
+          <AsideMenuList className="px-3 py-3" menu={menu} />
         </div>
       </div>
     </aside>
diff --git a/frontend/src/components/Attachments/TableAttachments.tsx b/frontend/src/components/Attachments/TableAttachments.tsx
index 9cc7539..231d5e3 100644
--- a/frontend/src/components/Attachments/TableAttachments.tsx
+++ b/frontend/src/components/Attachments/TableAttachments.tsx
@@ -16,6 +16,7 @@ import {loadColumns} from "./configureAttachmentsCols";
 import _ from 'lodash';
 import dataFormatter from '../../helpers/dataFormatter'
 import {dataGridStyles} from "../../styles";
+import DataGridLoadingOverlay from '../DataGridLoadingOverlay';
 
 
 
@@ -45,6 +46,7 @@ const TableSampleAttachments = ({ filterItems, setFilterItems, filters, showGrid
   const focusRing = useAppSelector((state) => state.style.focusRingColor);
   const bgColor = useAppSelector((state) => state.style.bgLayoutColor);
   const corners = useAppSelector((state) => state.style.corners);
+  const isDataGridLoading = !currentUser || loading || columns.length === 0;
     const numPages = Math.floor(count / perPage) === 0 ? 1 : Math.ceil(count / perPage);
     for (let i = 0; i < numPages; i++) {
         pagesList.push(i);
@@ -211,7 +213,8 @@ const TableSampleAttachments = ({ filterItems, setFilterItems, filters, showGrid
         <div  className='relative overflow-x-auto'>
           <DataGrid
               autoHeight
-              rowHeight={64}
+              rowHeight={56}
+              columnHeaderHeight={48}
               sx={dataGridStyles}
               className={'datagrid--table'}
               getRowClassName={() => `datagrid--row`}
@@ -251,7 +254,10 @@ const TableSampleAttachments = ({ filterItems, setFilterItems, filters, showGrid
               rowCount={count}
               pageSizeOptions={[10]}
               paginationMode={'server'}
-              loading={loading}
+              loading={isDataGridLoading}
+              slots={{
+                  loadingOverlay: DataGridLoadingOverlay,
+              }}
               onPaginationModelChange={(params) => {
                   onPageChange(params.page);
               }}
diff --git a/frontend/src/components/Attachments/configureAttachmentsCols.tsx b/frontend/src/components/Attachments/configureAttachmentsCols.tsx
index 2ee0fce..cf40ee3 100644
--- a/frontend/src/components/Attachments/configureAttachmentsCols.tsx
+++ b/frontend/src/components/Attachments/configureAttachmentsCols.tsx
@@ -12,6 +12,7 @@ import {saveFile} from "../../helpers/fileSaver";
 import dataFormatter from '../../helpers/dataFormatter'
 import DataGridMultiSelect from "../DataGridMultiSelect";
 import ListActionsPopover from '../ListActionsPopover';
+import { makeReadableColumns } from '../../helpers/dataGridColumns';
 
 import {hasPermission} from "../../helpers/userPermissions";
 
@@ -39,7 +40,7 @@ export const loadColumns = async (
     
     const hasUpdatePermission = hasPermission(user, 'UPDATE_ATTACHMENTS')
     
-    return [
+    const columns = [
         
         {
             field: 'message',
@@ -225,4 +226,6 @@ export const loadColumns = async (
             },
         },
     ];
+
+    return makeReadableColumns(columns);
 };
diff --git a/frontend/src/components/Conversations/TableConversations.tsx b/frontend/src/components/Conversations/TableConversations.tsx
index b09c422..8ede122 100644
--- a/frontend/src/components/Conversations/TableConversations.tsx
+++ b/frontend/src/components/Conversations/TableConversations.tsx
@@ -16,6 +16,7 @@ import {loadColumns} from "./configureConversationsCols";
 import _ from 'lodash';
 import dataFormatter from '../../helpers/dataFormatter'
 import {dataGridStyles} from "../../styles";
+import DataGridLoadingOverlay from '../DataGridLoadingOverlay';
 
 
 
@@ -45,6 +46,7 @@ const TableSampleConversations = ({ filterItems, setFilterItems, filters, showGr
   const focusRing = useAppSelector((state) => state.style.focusRingColor);
   const bgColor = useAppSelector((state) => state.style.bgLayoutColor);
   const corners = useAppSelector((state) => state.style.corners);
+  const isDataGridLoading = !currentUser || loading || columns.length === 0;
     const numPages = Math.floor(count / perPage) === 0 ? 1 : Math.ceil(count / perPage);
     for (let i = 0; i < numPages; i++) {
         pagesList.push(i);
@@ -211,7 +213,8 @@ const TableSampleConversations = ({ filterItems, setFilterItems, filters, showGr
         <div  className='relative overflow-x-auto'>
           <DataGrid
               autoHeight
-              rowHeight={64}
+              rowHeight={56}
+              columnHeaderHeight={48}
               sx={dataGridStyles}
               className={'datagrid--table'}
               getRowClassName={() => `datagrid--row`}
@@ -251,7 +254,10 @@ const TableSampleConversations = ({ filterItems, setFilterItems, filters, showGr
               rowCount={count}
               pageSizeOptions={[10]}
               paginationMode={'server'}
-              loading={loading}
+              loading={isDataGridLoading}
+              slots={{
+                  loadingOverlay: DataGridLoadingOverlay,
+              }}
               onPaginationModelChange={(params) => {
                   onPageChange(params.page);
               }}
diff --git a/frontend/src/components/Conversations/configureConversationsCols.tsx b/frontend/src/components/Conversations/configureConversationsCols.tsx
index 5b69c6a..3b77e84 100644
--- a/frontend/src/components/Conversations/configureConversationsCols.tsx
+++ b/frontend/src/components/Conversations/configureConversationsCols.tsx
@@ -12,6 +12,7 @@ import {saveFile} from "../../helpers/fileSaver";
 import dataFormatter from '../../helpers/dataFormatter'
 import DataGridMultiSelect from "../DataGridMultiSelect";
 import ListActionsPopover from '../ListActionsPopover';
+import { makeReadableColumns } from '../../helpers/dataGridColumns';
 
 import {hasPermission} from "../../helpers/userPermissions";
 
@@ -39,7 +40,7 @@ export const loadColumns = async (
     
     const hasUpdatePermission = hasPermission(user, 'UPDATE_CONVERSATIONS')
     
-    return [
+    const columns = [
         
         {
             field: 'user',
@@ -203,4 +204,6 @@ export const loadColumns = async (
             },
         },
     ];
+
+    return makeReadableColumns(columns);
 };
diff --git a/frontend/src/components/DataGridLoadingOverlay.tsx b/frontend/src/components/DataGridLoadingOverlay.tsx
new file mode 100644
index 0000000..c0408f5
--- /dev/null
+++ b/frontend/src/components/DataGridLoadingOverlay.tsx
@@ -0,0 +1,32 @@
+import React from 'react';
+
+const SKELETON_ROWS = 4;
+
+export default function DataGridLoadingOverlay() {
+  return (
+    <div className="flex h-full min-h-[240px] items-center justify-center bg-white/80 px-6 py-8">
+      <div className="w-full max-w-3xl">
+        <div className="mb-5 flex items-center gap-3">
+          <div className="h-7 w-7 animate-spin rounded-full border-2 border-slate-200 border-t-slate-700" />
+          <div>
+            <p className="text-[13px] font-medium text-slate-700">Loading data</p>
+            <p className="text-[12px] text-slate-400">Fetching the latest rows for this table.</p>
+          </div>
+        </div>
+        <div className="space-y-3">
+          {Array.from({ length: SKELETON_ROWS }).map((_, index) => (
+            <div
+              className="grid grid-cols-[1fr_0.8fr_0.7fr_0.55fr] gap-3"
+              key={index}
+            >
+              <div className="h-10 rounded-[10px] bg-slate-100" />
+              <div className="h-10 rounded-[10px] bg-slate-100" />
+              <div className="h-10 rounded-[10px] bg-slate-100" />
+              <div className="h-10 rounded-[10px] bg-slate-100" />
+            </div>
+          ))}
+        </div>
+      </div>
+    </div>
+  );
+}
diff --git a/frontend/src/components/FormImagePicker.tsx b/frontend/src/components/FormImagePicker.tsx
index 7bc34ae..e87c587 100644
--- a/frontend/src/components/FormImagePicker.tsx
+++ b/frontend/src/components/FormImagePicker.tsx
@@ -12,13 +12,25 @@ type Props = {
   accept?: string;
   color: ColorButtonKey;
   isRoundIcon?: boolean;
+  showFilename?: boolean;
   path: string;
   schema: object;
   field: any,
   form: any,
 };
 
-const FormImagePicker = ({ label, icon, accept, color, isRoundIcon, path, schema, form, field }: Props) => {
+const FormImagePicker = ({
+  label,
+  icon,
+  accept,
+  color,
+  isRoundIcon,
+  showFilename = false,
+  path,
+  schema,
+  form,
+  field,
+}: Props) => {
   const [file, setFile] = useState(null);
   const [loading, setLoading] = useState(false);
   const corners = useAppSelector((state) => state.style.corners);
@@ -51,14 +63,14 @@ const FormImagePicker = ({ label, icon, accept, color, isRoundIcon, path, schema
     setLoading(false);
   };
 
-  const showFilename = !isRoundIcon && file;
+  const shouldShowFilename = Boolean(showFilename && !isRoundIcon && file);
 
   return (
       <div className='flex items-stretch justify-start relative'>
         <label className='inline-flex'>
           <BaseButton
               className={`${isRoundIcon ? 'w-12 h-12' : ''} ${
-                  showFilename ? 'rounded-r-none' : ''
+                  shouldShowFilename ? 'rounded-r-none' : ''
               }`}
               iconSize={isRoundIcon ? 24 : undefined}
               label={isRoundIcon ? null : label}
@@ -76,7 +88,7 @@ const FormImagePicker = ({ label, icon, accept, color, isRoundIcon, path, schema
               disabled={loading}
           />
         </label>
-        {showFilename && !loading && (
+        {shouldShowFilename && !loading && (
             <div className={` ${cornersRight} px-4 py-2 max-w-full flex-grow-0 overflow-x-hidden ${bgColor} dark:bg-slate-800 border-gray-200 dark:border-slate-700 border  `}>
           <span className='text-ellipsis max-w-full line-clamp-1'>
             {file.name}
diff --git a/frontend/src/components/Messages/TableMessages.tsx b/frontend/src/components/Messages/TableMessages.tsx
index 998ad9c..ce31e68 100644
--- a/frontend/src/components/Messages/TableMessages.tsx
+++ b/frontend/src/components/Messages/TableMessages.tsx
@@ -16,6 +16,7 @@ import {loadColumns} from "./configureMessagesCols";
 import _ from 'lodash';
 import dataFormatter from '../../helpers/dataFormatter'
 import {dataGridStyles} from "../../styles";
+import DataGridLoadingOverlay from '../DataGridLoadingOverlay';
 
 
 
@@ -45,6 +46,7 @@ const TableSampleMessages = ({ filterItems, setFilterItems, filters, showGrid })
   const focusRing = useAppSelector((state) => state.style.focusRingColor);
   const bgColor = useAppSelector((state) => state.style.bgLayoutColor);
   const corners = useAppSelector((state) => state.style.corners);
+  const isDataGridLoading = !currentUser || loading || columns.length === 0;
     const numPages = Math.floor(count / perPage) === 0 ? 1 : Math.ceil(count / perPage);
     for (let i = 0; i < numPages; i++) {
         pagesList.push(i);
@@ -211,7 +213,8 @@ const TableSampleMessages = ({ filterItems, setFilterItems, filters, showGrid })
         <div  className='relative overflow-x-auto'>
           <DataGrid
               autoHeight
-              rowHeight={64}
+              rowHeight={56}
+              columnHeaderHeight={48}
               sx={dataGridStyles}
               className={'datagrid--table'}
               getRowClassName={() => `datagrid--row`}
@@ -251,7 +254,10 @@ const TableSampleMessages = ({ filterItems, setFilterItems, filters, showGrid })
               rowCount={count}
               pageSizeOptions={[10]}
               paginationMode={'server'}
-              loading={loading}
+              loading={isDataGridLoading}
+              slots={{
+                  loadingOverlay: DataGridLoadingOverlay,
+              }}
               onPaginationModelChange={(params) => {
                   onPageChange(params.page);
               }}
diff --git a/frontend/src/components/Messages/configureMessagesCols.tsx b/frontend/src/components/Messages/configureMessagesCols.tsx
index fd9cb87..339c8c0 100644
--- a/frontend/src/components/Messages/configureMessagesCols.tsx
+++ b/frontend/src/components/Messages/configureMessagesCols.tsx
@@ -12,6 +12,7 @@ import {saveFile} from "../../helpers/fileSaver";
 import dataFormatter from '../../helpers/dataFormatter'
 import DataGridMultiSelect from "../DataGridMultiSelect";
 import ListActionsPopover from '../ListActionsPopover';
+import { makeReadableColumns } from '../../helpers/dataGridColumns';
 
 import {hasPermission} from "../../helpers/userPermissions";
 
@@ -39,7 +40,7 @@ export const loadColumns = async (
     
     const hasUpdatePermission = hasPermission(user, 'UPDATE_MESSAGES')
     
-    return [
+    const columns = [
         
         {
             field: 'conversation',
@@ -266,4 +267,6 @@ export const loadColumns = async (
             },
         },
     ];
+
+    return makeReadableColumns(columns);
 };
diff --git a/frontend/src/components/NavBar.tsx b/frontend/src/components/NavBar.tsx
index c8b5242..79a7631 100644
--- a/frontend/src/components/NavBar.tsx
+++ b/frontend/src/components/NavBar.tsx
@@ -1,4 +1,4 @@
-import React, { ReactNode, useState, useEffect } from 'react'
+import React, { ReactNode, useState, useEffect, CSSProperties } from 'react'
 import { mdiClose, mdiDotsVertical } from '@mdi/js'
 import { containerMaxW } from '../config'
 import BaseIcon from './BaseIcon'
@@ -12,9 +12,10 @@ type Props = {
   className: string
   contentClassName?: string
   children: ReactNode
+  style?: CSSProperties
 }
 
-export default function NavBar({ menu, className = '', contentClassName = containerMaxW, children }: Props) {
+export default function NavBar({ menu, className = '', contentClassName = containerMaxW, children, style }: Props) {
   const [isMenuNavBarActive, setIsMenuNavBarActive] = useState(false)
   const [isScrolled, setIsScrolled] = useState(false);
   const bgColor = useAppSelector((state) => state.style.bgLayoutColor);
@@ -37,7 +38,8 @@ export default function NavBar({ menu, className = '', contentClassName = contai
 
   return (
     <nav
-      className={`${className} top-0 inset-x-0 fixed ${bgColor} h-12 z-30 transition-position w-screen lg:w-auto dark:bg-dark-800`}
+      className={`${className} top-0 inset-x-0 fixed ${bgColor} h-12 z-30 transition-position w-auto dark:bg-dark-800`}
+      style={style}
     >
         <div className={`flex lg:items-stretch ${contentClassName} ${isScrolled && `border-b  border-pavitra-400 dark:border-dark-700`}`}>
         <div className="flex flex-1 items-stretch h-12">{children}</div>
diff --git a/frontend/src/components/Permissions/TablePermissions.tsx b/frontend/src/components/Permissions/TablePermissions.tsx
index 9b21466..6e8369f 100644
--- a/frontend/src/components/Permissions/TablePermissions.tsx
+++ b/frontend/src/components/Permissions/TablePermissions.tsx
@@ -16,6 +16,7 @@ import {loadColumns} from "./configurePermissionsCols";
 import _ from 'lodash';
 import dataFormatter from '../../helpers/dataFormatter'
 import {dataGridStyles} from "../../styles";
+import DataGridLoadingOverlay from '../DataGridLoadingOverlay';
 
 
 
@@ -45,6 +46,7 @@ const TableSamplePermissions = ({ filterItems, setFilterItems, filters, showGrid
   const focusRing = useAppSelector((state) => state.style.focusRingColor);
   const bgColor = useAppSelector((state) => state.style.bgLayoutColor);
   const corners = useAppSelector((state) => state.style.corners);
+  const isDataGridLoading = !currentUser || loading || columns.length === 0;
     const numPages = Math.floor(count / perPage) === 0 ? 1 : Math.ceil(count / perPage);
     for (let i = 0; i < numPages; i++) {
         pagesList.push(i);
@@ -211,7 +213,8 @@ const TableSamplePermissions = ({ filterItems, setFilterItems, filters, showGrid
         <div  className='relative overflow-x-auto'>
           <DataGrid
               autoHeight
-              rowHeight={64}
+              rowHeight={56}
+              columnHeaderHeight={48}
               sx={dataGridStyles}
               className={'datagrid--table'}
               getRowClassName={() => `datagrid--row`}
@@ -251,7 +254,10 @@ const TableSamplePermissions = ({ filterItems, setFilterItems, filters, showGrid
               rowCount={count}
               pageSizeOptions={[10]}
               paginationMode={'server'}
-              loading={loading}
+              loading={isDataGridLoading}
+              slots={{
+                  loadingOverlay: DataGridLoadingOverlay,
+              }}
               onPaginationModelChange={(params) => {
                   onPageChange(params.page);
               }}
diff --git a/frontend/src/components/Permissions/configurePermissionsCols.tsx b/frontend/src/components/Permissions/configurePermissionsCols.tsx
index b221e80..e923470 100644
--- a/frontend/src/components/Permissions/configurePermissionsCols.tsx
+++ b/frontend/src/components/Permissions/configurePermissionsCols.tsx
@@ -12,6 +12,7 @@ import {saveFile} from "../../helpers/fileSaver";
 import dataFormatter from '../../helpers/dataFormatter'
 import DataGridMultiSelect from "../DataGridMultiSelect";
 import ListActionsPopover from '../ListActionsPopover';
+import { makeReadableColumns } from '../../helpers/dataGridColumns';
 
 import {hasPermission} from "../../helpers/userPermissions";
 
@@ -39,7 +40,7 @@ export const loadColumns = async (
     
     const hasUpdatePermission = hasPermission(user, 'UPDATE_PERMISSIONS')
     
-    return [
+    const columns = [
         
         {
             field: 'name',
@@ -80,4 +81,6 @@ export const loadColumns = async (
             },
         },
     ];
+
+    return makeReadableColumns(columns);
 };
diff --git a/frontend/src/components/Roles/TableRoles.tsx b/frontend/src/components/Roles/TableRoles.tsx
index 69f45f5..3d4a59d 100644
--- a/frontend/src/components/Roles/TableRoles.tsx
+++ b/frontend/src/components/Roles/TableRoles.tsx
@@ -16,6 +16,7 @@ import {loadColumns} from "./configureRolesCols";
 import _ from 'lodash';
 import dataFormatter from '../../helpers/dataFormatter'
 import {dataGridStyles} from "../../styles";
+import DataGridLoadingOverlay from '../DataGridLoadingOverlay';
 
 
 
@@ -45,6 +46,7 @@ const TableSampleRoles = ({ filterItems, setFilterItems, filters, showGrid }) =>
   const focusRing = useAppSelector((state) => state.style.focusRingColor);
   const bgColor = useAppSelector((state) => state.style.bgLayoutColor);
   const corners = useAppSelector((state) => state.style.corners);
+  const isDataGridLoading = !currentUser || loading || columns.length === 0;
     const numPages = Math.floor(count / perPage) === 0 ? 1 : Math.ceil(count / perPage);
     for (let i = 0; i < numPages; i++) {
         pagesList.push(i);
@@ -211,7 +213,8 @@ const TableSampleRoles = ({ filterItems, setFilterItems, filters, showGrid }) =>
         <div id="rolesTable" className='relative overflow-x-auto'>
           <DataGrid
               autoHeight
-              rowHeight={64}
+              rowHeight={56}
+              columnHeaderHeight={48}
               sx={dataGridStyles}
               className={'datagrid--table'}
               getRowClassName={() => `datagrid--row`}
@@ -251,7 +254,10 @@ const TableSampleRoles = ({ filterItems, setFilterItems, filters, showGrid }) =>
               rowCount={count}
               pageSizeOptions={[10]}
               paginationMode={'server'}
-              loading={loading}
+              loading={isDataGridLoading}
+              slots={{
+                  loadingOverlay: DataGridLoadingOverlay,
+              }}
               onPaginationModelChange={(params) => {
                   onPageChange(params.page);
               }}
diff --git a/frontend/src/components/Roles/configureRolesCols.tsx b/frontend/src/components/Roles/configureRolesCols.tsx
index 95d81ff..3865c1c 100644
--- a/frontend/src/components/Roles/configureRolesCols.tsx
+++ b/frontend/src/components/Roles/configureRolesCols.tsx
@@ -12,6 +12,7 @@ import {saveFile} from "../../helpers/fileSaver";
 import dataFormatter from '../../helpers/dataFormatter'
 import DataGridMultiSelect from "../DataGridMultiSelect";
 import ListActionsPopover from '../ListActionsPopover';
+import { makeReadableColumns } from '../../helpers/dataGridColumns';
 
 import {hasPermission} from "../../helpers/userPermissions";
 
@@ -39,7 +40,7 @@ export const loadColumns = async (
     
     const hasUpdatePermission = hasPermission(user, 'UPDATE_ROLES')
     
-    return [
+    const columns = [
         
         {
             field: 'name',
@@ -100,4 +101,6 @@ export const loadColumns = async (
             },
         },
     ];
+
+    return makeReadableColumns(columns);
 };
diff --git a/frontend/src/components/Usage_events/TableUsage_events.tsx b/frontend/src/components/Usage_events/TableUsage_events.tsx
index 9db5540..08cdd33 100644
--- a/frontend/src/components/Usage_events/TableUsage_events.tsx
+++ b/frontend/src/components/Usage_events/TableUsage_events.tsx
@@ -16,6 +16,7 @@ import {loadColumns} from "./configureUsage_eventsCols";
 import _ from 'lodash';
 import dataFormatter from '../../helpers/dataFormatter'
 import {dataGridStyles} from "../../styles";
+import DataGridLoadingOverlay from '../DataGridLoadingOverlay';
 
 
 
@@ -45,6 +46,7 @@ const TableSampleUsage_events = ({ filterItems, setFilterItems, filters, showGri
   const focusRing = useAppSelector((state) => state.style.focusRingColor);
   const bgColor = useAppSelector((state) => state.style.bgLayoutColor);
   const corners = useAppSelector((state) => state.style.corners);
+  const isDataGridLoading = !currentUser || loading || columns.length === 0;
     const numPages = Math.floor(count / perPage) === 0 ? 1 : Math.ceil(count / perPage);
     for (let i = 0; i < numPages; i++) {
         pagesList.push(i);
@@ -211,7 +213,8 @@ const TableSampleUsage_events = ({ filterItems, setFilterItems, filters, showGri
         <div  className='relative overflow-x-auto'>
           <DataGrid
               autoHeight
-              rowHeight={64}
+              rowHeight={56}
+              columnHeaderHeight={48}
               sx={dataGridStyles}
               className={'datagrid--table'}
               getRowClassName={() => `datagrid--row`}
@@ -251,7 +254,10 @@ const TableSampleUsage_events = ({ filterItems, setFilterItems, filters, showGri
               rowCount={count}
               pageSizeOptions={[10]}
               paginationMode={'server'}
-              loading={loading}
+              loading={isDataGridLoading}
+              slots={{
+                  loadingOverlay: DataGridLoadingOverlay,
+              }}
               onPaginationModelChange={(params) => {
                   onPageChange(params.page);
               }}
diff --git a/frontend/src/components/Usage_events/configureUsage_eventsCols.tsx b/frontend/src/components/Usage_events/configureUsage_eventsCols.tsx
index 1dc0ee0..d6189a7 100644
--- a/frontend/src/components/Usage_events/configureUsage_eventsCols.tsx
+++ b/frontend/src/components/Usage_events/configureUsage_eventsCols.tsx
@@ -12,6 +12,7 @@ import {saveFile} from "../../helpers/fileSaver";
 import dataFormatter from '../../helpers/dataFormatter'
 import DataGridMultiSelect from "../DataGridMultiSelect";
 import ListActionsPopover from '../ListActionsPopover';
+import { makeReadableColumns } from '../../helpers/dataGridColumns';
 
 import {hasPermission} from "../../helpers/userPermissions";
 
@@ -39,7 +40,7 @@ export const loadColumns = async (
     
     const hasUpdatePermission = hasPermission(user, 'UPDATE_USAGE_EVENTS')
     
-    return [
+    const columns = [
         
         {
             field: 'user',
@@ -295,4 +296,6 @@ export const loadColumns = async (
             },
         },
     ];
+
+    return makeReadableColumns(columns);
 };
diff --git a/frontend/src/components/Users/TableUsers.tsx b/frontend/src/components/Users/TableUsers.tsx
index bef1b7f..dbdc57c 100644
--- a/frontend/src/components/Users/TableUsers.tsx
+++ b/frontend/src/components/Users/TableUsers.tsx
@@ -16,6 +16,7 @@ import {loadColumns} from "./configureUsersCols";
 import _ from 'lodash';
 import dataFormatter from '../../helpers/dataFormatter'
 import {dataGridStyles} from "../../styles";
+import DataGridLoadingOverlay from '../DataGridLoadingOverlay';
 
 
 
@@ -45,6 +46,7 @@ const TableSampleUsers = ({ filterItems, setFilterItems, filters, showGrid }) =>
   const focusRing = useAppSelector((state) => state.style.focusRingColor);
   const bgColor = useAppSelector((state) => state.style.bgLayoutColor);
   const corners = useAppSelector((state) => state.style.corners);
+  const isDataGridLoading = !currentUser || loading || columns.length === 0;
     const numPages = Math.floor(count / perPage) === 0 ? 1 : Math.ceil(count / perPage);
     for (let i = 0; i < numPages; i++) {
         pagesList.push(i);
@@ -211,7 +213,8 @@ const TableSampleUsers = ({ filterItems, setFilterItems, filters, showGrid }) =>
         <div id="usersTable" className='relative overflow-x-auto'>
           <DataGrid
               autoHeight
-              rowHeight={64}
+              rowHeight={56}
+              columnHeaderHeight={48}
               sx={dataGridStyles}
               className={'datagrid--table'}
               getRowClassName={() => `datagrid--row`}
@@ -251,7 +254,10 @@ const TableSampleUsers = ({ filterItems, setFilterItems, filters, showGrid }) =>
               rowCount={count}
               pageSizeOptions={[10]}
               paginationMode={'server'}
-              loading={loading}
+              loading={isDataGridLoading}
+              slots={{
+                  loadingOverlay: DataGridLoadingOverlay,
+              }}
               onPaginationModelChange={(params) => {
                   onPageChange(params.page);
               }}
diff --git a/frontend/src/components/Users/configureUsersCols.tsx b/frontend/src/components/Users/configureUsersCols.tsx
index 37cebd3..9afd6e9 100644
--- a/frontend/src/components/Users/configureUsersCols.tsx
+++ b/frontend/src/components/Users/configureUsersCols.tsx
@@ -12,6 +12,7 @@ import {saveFile} from "../../helpers/fileSaver";
 import dataFormatter from '../../helpers/dataFormatter'
 import DataGridMultiSelect from "../DataGridMultiSelect";
 import ListActionsPopover from '../ListActionsPopover';
+import { makeReadableColumns } from '../../helpers/dataGridColumns';
 
 import {hasPermission} from "../../helpers/userPermissions";
 
@@ -39,7 +40,7 @@ export const loadColumns = async (
     
     const hasUpdatePermission = hasPermission(user, 'UPDATE_USERS')
     
-    return [
+    const columns = [
         
         {
             field: 'firstName',
@@ -204,4 +205,6 @@ export const loadColumns = async (
             },
         },
     ];
+
+    return makeReadableColumns(columns);
 };
diff --git a/frontend/src/components/Workspace/WorkspaceShell.tsx b/frontend/src/components/Workspace/WorkspaceShell.tsx
index 620605a..4a33630 100644
--- a/frontend/src/components/Workspace/WorkspaceShell.tsx
+++ b/frontend/src/components/Workspace/WorkspaceShell.tsx
@@ -17,7 +17,7 @@ import { useRouter } from 'next/router';
 import React, { useCallback, useEffect, useMemo, useRef, useState } from 'react';
 import { toast } from 'react-toastify';
 import BaseIcon from '../BaseIcon';
-import { hasPermission } from '../../helpers/userPermissions';
+import { ADMIN_ENTRY_PERMISSIONS, hasPermission } from '../../helpers/userPermissions';
 import { useAppSelector } from '../../stores/hooks';
 import ChatMarkdown from './ChatMarkdown';
 
@@ -474,7 +474,7 @@ export default function WorkspaceShell() {
   const currentUserName = currentUser?.firstName || currentUser?.email || 'You';
   const currentUserAvatarUrl = getAvatarUrl(currentUser?.avatar);
   const currentUserInitial = getUserInitial(currentUser);
-  const canAccessAdmin = hasPermission(currentUser, 'READ_USERS');
+  const canAccessAdmin = hasPermission(currentUser, ADMIN_ENTRY_PERMISSIONS);
 
   const activeConversations = useMemo(
     () => conversations.filter((conversation) => conversation.status !== 'archived'),
diff --git a/frontend/src/css/_app.css b/frontend/src/css/_app.css
index d338afe..5af0979 100644
--- a/frontend/src/css/_app.css
+++ b/frontend/src/css/_app.css
@@ -3,7 +3,7 @@ html {
 }
 
 body {
-  @apply pt-12 xl:pl-64 h-full;
+  @apply h-full;
 }
 
 #app {
diff --git a/frontend/src/css/_table.css b/frontend/src/css/_table.css
index 893dc89..3ebeb81 100644
--- a/frontend/src/css/_table.css
+++ b/frontend/src/css/_table.css
@@ -71,36 +71,47 @@
   }
 
   .datagrid--table, .MuiDataGrid-root {
-    @apply rounded border-none !important;
-    
+    @apply rounded-[10px] border-none bg-white text-slate-700 !important;
+  }
+
+  .datagrid--table .MuiDataGrid-columnHeaders {
+    @apply border-b border-slate-200 bg-slate-50/70 !important;
   }
 
   .datagrid--header {
-    @apply uppercase  !important;
+    @apply text-[11px] font-semibold tracking-[0.14em] text-slate-400 !important;
   }
 
   .datagrid--header,
   .datagrid--header .MuiIconButton-root,
   .datagrid--cell,
   .datagrid--cell .MuiIconButton-root {
-    @apply  dark:text-white;
+    @apply text-slate-700 dark:text-white;
   }
 
   .datagrid--cell .MuiDataGrid-booleanCell {
-    @apply  dark:text-white !important;
+    @apply text-slate-700 dark:text-white !important;
   }
 
   .datagrid--cell .MuiIconButton-root:hover {
-    @apply  dark:text-white dark:bg-dark-700;
+    @apply bg-slate-100 text-slate-700 dark:text-white dark:bg-dark-700;
   }
 
   .datagrid--row {
-    @apply even:bg-gray-100 dark:even:bg-[#1B1D22] dark:odd:bg-dark-900 !important;
+    @apply border-b border-slate-100 bg-white dark:odd:bg-dark-900 dark:even:bg-dark-900 !important;
+  }
+
+  .datagrid--row:hover {
+    @apply bg-slate-50 !important;
+  }
+
+  .datagrid--content {
+    @apply block min-w-0 overflow-hidden text-ellipsis whitespace-nowrap text-[13px] font-normal leading-5 text-slate-700;
   }
   
 
   .datagrid--table .MuiTablePagination-root {
-    @apply  dark:text-white;
+    @apply text-[13px] text-slate-500 dark:text-white;
   }
 
   .datagrid--table .MuiTablePagination-root .MuiButtonBase-root:disabled {
@@ -114,4 +125,15 @@
   .MuiButton-colorInherit {
     @apply text-blue-600  dark:text-dark-700 !important;
   }
+
+  .datagrid--table .MuiDataGrid-columnSeparator {
+    display: none !important;
+  }
+
+  .datagrid--table .MuiDataGrid-cell:focus,
+  .datagrid--table .MuiDataGrid-cell:focus-within,
+  .datagrid--table .MuiDataGrid-columnHeader:focus,
+  .datagrid--table .MuiDataGrid-columnHeader:focus-within {
+    outline: none !important;
+  }
 }
diff --git a/frontend/src/helpers/dataGridColumns.tsx b/frontend/src/helpers/dataGridColumns.tsx
new file mode 100644
index 0000000..c5811ce
--- /dev/null
+++ b/frontend/src/helpers/dataGridColumns.tsx
@@ -0,0 +1,243 @@
+import React from 'react';
+import type { GridColDef } from '@mui/x-data-grid';
+
+import { humanize } from './humanize';
+
+const HEADER_OVERRIDES: Record<string, string> = {
+  app_role: 'Role',
+  author_user: 'Author',
+  client_context_json: 'Client context',
+  completed_at: 'Completed',
+  content_markdown: 'Markdown',
+  createdAt: 'Created',
+  firstName: 'First name',
+  is_default: 'Default',
+  is_pinned: 'Pinned',
+  last_message_at: 'Last message',
+  lastName: 'Last name',
+  phoneNumber: 'Phone',
+  public_url: 'Public URL',
+  sent_at: 'Sent',
+  system_prompt: 'System prompt',
+  updatedAt: 'Updated',
+  usage_type: 'Usage type',
+};
+
+const WIDTH_OVERRIDES: Record<string, number> = {
+  actions: 64,
+  agent: 160,
+  app_role: 140,
+  author_user: 150,
+  client_context_json: 220,
+  content: 240,
+  content_markdown: 220,
+  conversation: 190,
+  createdAt: 150,
+  description: 220,
+  email: 220,
+  event_type: 150,
+  last_message_at: 170,
+  message: 220,
+  model: 150,
+  name: 160,
+  permissions: 240,
+  phoneNumber: 160,
+  role: 120,
+  status: 130,
+  summary: 220,
+  system_prompt: 240,
+  title: 200,
+  updatedAt: 150,
+  usage_type: 150,
+  user: 150,
+};
+
+const FIXED_WIDTH_FIELDS = new Set([
+  'actions',
+  'app_role',
+  'author_user',
+  'completed_at',
+  'createdAt',
+  'event_type',
+  'is_default',
+  'is_pinned',
+  'last_message_at',
+  'model',
+  'phoneNumber',
+  'public_url',
+  'role',
+  'sent_at',
+  'status',
+  'updatedAt',
+  'usage_type',
+  'user',
+]);
+
+function appendClassName(existing: string | undefined, next: string) {
+  if (!existing) {
+    return next;
+  }
+
+  if (existing.includes(next)) {
+    return existing;
+  }
+
+  return `${existing} ${next}`;
+}
+
+function getHeaderName(column: GridColDef) {
+  if (HEADER_OVERRIDES[column.field]) {
+    return HEADER_OVERRIDES[column.field];
+  }
+
+  if (column.headerName) {
+    return humanize(column.headerName);
+  }
+
+  return humanize(column.field);
+}
+
+function formatDateValue(value: string | Date) {
+  const parsed = value instanceof Date ? value : new Date(value);
+
+  if (Number.isNaN(parsed.getTime())) {
+    return String(value);
+  }
+
+  return parsed.toLocaleString([], {
+    month: 'short',
+    day: 'numeric',
+    hour: 'numeric',
+    minute: '2-digit',
+  });
+}
+
+function formatCellValue(value: unknown, field: string) {
+  if (value === null || value === undefined || value === '') {
+    return '—';
+  }
+
+  if (typeof value === 'boolean') {
+    if (value) {
+      return 'Yes';
+    }
+
+    return 'No';
+  }
+
+  if (value instanceof Date) {
+    return formatDateValue(value);
+  }
+
+  if (typeof value === 'string') {
+    if (field.endsWith('_at') || field.endsWith('At')) {
+      return formatDateValue(value);
+    }
+
+    return value;
+  }
+
+  if (Array.isArray(value)) {
+    const text = value
+      .map((item) => formatCellValue(item, field))
+      .filter(Boolean)
+      .join(', ');
+
+    if (!text) {
+      return '—';
+    }
+
+    return text;
+  }
+
+  if (typeof value === 'object') {
+    if ('firstName' in value || 'lastName' in value) {
+      const firstName = 'firstName' in value && value.firstName ? String(value.firstName) : '';
+      const lastName = 'lastName' in value && value.lastName ? String(value.lastName) : '';
+      const fullName = `${firstName} ${lastName}`.trim();
+
+      if (fullName) {
+        return fullName;
+      }
+    }
+
+    if ('label' in value && value.label) {
+      return String(value.label);
+    }
+
+    if ('name' in value && value.name) {
+      return String(value.name);
+    }
+
+    if ('title' in value && value.title) {
+      return String(value.title);
+    }
+
+    if ('content' in value && value.content) {
+      return String(value.content);
+    }
+
+    if ('email' in value && value.email) {
+      return String(value.email);
+    }
+
+    const json = JSON.stringify(value);
+
+    if (json.length > 120) {
+      return `${json.slice(0, 117)}...`;
+    }
+
+    return json;
+  }
+
+  return String(value);
+}
+
+export function makeReadableColumns(columns: GridColDef[]) {
+  return columns.map((column) => {
+    if (column.type === 'actions') {
+      return {
+        ...column,
+        field: column.field,
+        headerName: '',
+        width: WIDTH_OVERRIDES.actions,
+        minWidth: WIDTH_OVERRIDES.actions,
+        flex: 0,
+        sortable: false,
+        filterable: false,
+        disableColumnMenu: true,
+        headerClassName: appendClassName(column.headerClassName, 'datagrid--header'),
+        cellClassName: appendClassName(column.cellClassName, 'datagrid--cell'),
+      };
+    }
+
+    const headerName = getHeaderName(column);
+    const targetMinWidth = WIDTH_OVERRIDES[column.field] || Math.max(column.minWidth || 140, Math.min(220, headerName.length * 11 + 40));
+    const flex = typeof column.flex === 'number' ? column.flex : FIXED_WIDTH_FIELDS.has(column.field) ? 0 : 1;
+
+    return {
+      ...column,
+      headerName,
+      minWidth: targetMinWidth,
+      flex,
+      headerClassName: appendClassName(column.headerClassName, 'datagrid--header'),
+      cellClassName: appendClassName(column.cellClassName, 'datagrid--cell'),
+      renderCell:
+        column.renderCell ||
+        ((params) => {
+          const rowValue = params.row?.[column.field];
+          const value =
+            rowValue !== undefined && rowValue !== null
+              ? rowValue
+              : params.formattedValue ?? params.value;
+          const text = formatCellValue(value, column.field);
+
+          return (
+            <div className="datagrid--content" title={text}>
+              {text}
+            </div>
+          );
+        }),
+    };
+  });
+}
diff --git a/frontend/src/helpers/humanize.ts b/frontend/src/helpers/humanize.ts
index ea88c06..6690095 100644
--- a/frontend/src/helpers/humanize.ts
+++ b/frontend/src/helpers/humanize.ts
@@ -3,9 +3,13 @@ export  function humanize(str: string) {
         return '';
     }
     return str.toString()
+      .replace(/([a-z0-9])([A-Z])/g, '$1 $2')
+      .replace(/([A-Z]+)([A-Z][a-z])/g, '$1 $2')
       .replace(/^[\s_]+|[\s_]+$/g, '')
       .replace(/[_\s]+/g, ' ')
+      .replace(/\bjson\b/gi, 'JSON')
+      .replace(/\bid\b/gi, 'ID')
       .replace(/^[a-z]/, function (m) {
         return m.toUpperCase();
       });
-  }
\ No newline at end of file
+  }
diff --git a/frontend/src/helpers/userPermissions.ts b/frontend/src/helpers/userPermissions.ts
index 2f9c9f9..602722e 100644
--- a/frontend/src/helpers/userPermissions.ts
+++ b/frontend/src/helpers/userPermissions.ts
@@ -1,18 +1,49 @@
 
+const USER_PERMISSIONS = new Set([
+  'CREATE_USERS',
+  'READ_USERS',
+  'UPDATE_USERS',
+  'DELETE_USERS',
+]);
+
+export const ADMIN_ENTRY_PERMISSIONS = [
+  'READ_AGENTS',
+  'READ_CONVERSATIONS',
+  'READ_MESSAGES',
+  'READ_USAGE_EVENTS',
+];
+
 export function hasPermission(user, permission_name: string | string[]) {
   if (!user?.app_role?.name) return false;
   if (!permission_name) {
     return true;
   }
+
+  const isAdministrator = user.app_role.name === 'Administrator';
   const permissions = new Set<string>([
     ...(user?.custom_permissions ?? []).map((p) => p.name),
     ...(user?.app_role_permissions ?? []).map((p) => p.name),
   ]);
 
   if (typeof permission_name === 'string') {
-    return permissions.has(permission_name) || user.app_role.name === 'Administrator'
+    if (USER_PERMISSIONS.has(permission_name) && !isAdministrator) {
+      return false;
+    }
   } else {
+    const requestsUsersPermission = permission_name.some((permission) => USER_PERMISSIONS.has(permission));
+
+    if (requestsUsersPermission && !isAdministrator) {
+      return false;
+    }
+  }
+
+  if (typeof permission_name === 'string') {
+    return permissions.has(permission_name) || isAdministrator
+  } else {
+    if (isAdministrator) {
+      return true;
+    }
+
     return permission_name.some((permission) => permissions.has(permission));
   }
 }
-
diff --git a/frontend/src/layouts/Authenticated.tsx b/frontend/src/layouts/Authenticated.tsx
index 72ee105..3d04d4a 100644
--- a/frontend/src/layouts/Authenticated.tsx
+++ b/frontend/src/layouts/Authenticated.tsx
@@ -1,9 +1,6 @@
 import React, { ReactNode, useEffect, useRef, useState } from 'react'
 import jwt from 'jsonwebtoken';
 import {
-  mdiForwardburger,
-  mdiBackburger,
-  mdiMenu,
   mdiChevronDown,
   mdiCogOutline,
   mdiLogout,
@@ -11,7 +8,6 @@ import {
 import menuAside from '../menuAside'
 import BaseIcon from '../components/BaseIcon'
 import NavBar from '../components/NavBar'
-import NavBarItemPlain from '../components/NavBarItemPlain'
 import AsideMenu from '../components/AsideMenu'
 import FooterBar from '../components/FooterBar'
 import { useAppDispatch, useAppSelector } from '../stores/hooks'
@@ -26,7 +22,7 @@ import {hasPermission} from "../helpers/userPermissions";
 type Props = {
   children: ReactNode
   
-  permission?: string
+  permission?: string | string[]
   
 }
 
@@ -60,33 +56,50 @@ export default function LayoutAuthenticated({
   permission
   
 }: Props) {
+  const asideWidth = 256
   const dispatch = useAppDispatch()
   const router = useRouter()
   const { token, currentUser } = useAppSelector((state) => state.auth)
   const bgColor = useAppSelector((state) => state.style.bgLayoutColor);
   const isWorkspaceRoute = router.pathname.startsWith('/workspace');
-  let localToken
-  if (typeof window !== 'undefined') {
-    // Perform localStorage action
-    localToken = localStorage.getItem('token')
-  }
+  const [localToken, setLocalToken] = useState<string | null>(null)
+  const effectiveToken = token || localToken || ''
+  const isAuthBootstrapped = Boolean(token) || localToken !== null
+
+  const isTokenValid = (value: string) => {
+    if (!value) {
+      return false;
+    }
 
-  const isTokenValid = () => {
-    const token = localStorage.getItem('token');
-    if (!token) return;
     const date = new Date().getTime() / 1000;
-    const data = jwt.decode(token);
-    if (!data) return;
+    const data = jwt.decode(value);
+    if (!data) {
+      return false;
+    }
+
     return date < data.exp;
   };
 
   useEffect(() => {
-    dispatch(findMe());
-    if (!isTokenValid()) {
-      dispatch(logoutUser());
-      router.push('/login');
+    if (typeof window === 'undefined') {
+      return;
     }
-  }, [token, localToken]);
+
+    setLocalToken(localStorage.getItem('token') || '')
+  }, [])
+
+  useEffect(() => {
+    if (!effectiveToken) {
+      return;
+    }
+
+    if (!isTokenValid(effectiveToken)) {
+      dispatch(logoutUser());
+      return;
+    }
+
+    dispatch(findMe());
+  }, [dispatch, effectiveToken]);
 
   
   useEffect(() => {
@@ -98,8 +111,6 @@ export default function LayoutAuthenticated({
 
   const darkMode = useAppSelector((state) => state.style.darkMode)
 
-  const [isAsideMobileExpanded, setIsAsideMobileExpanded] = useState(false)
-  const [isAsideLgActive, setIsAsideLgActive] = useState(false)
   const [isWorkspaceAccountMenuOpen, setIsWorkspaceAccountMenuOpen] = useState(false)
   const workspaceAccountMenuButtonRef = useRef(null)
   const currentUserAvatarUrl = getAvatarUrl(currentUser?.avatar)
@@ -107,8 +118,6 @@ export default function LayoutAuthenticated({
 
   useEffect(() => {
     const handleRouteChangeStart = () => {
-      setIsAsideMobileExpanded(false)
-      setIsAsideLgActive(false)
       setIsWorkspaceAccountMenuOpen(false)
     }
 
@@ -121,44 +130,88 @@ export default function LayoutAuthenticated({
     }
   }, [router.events, dispatch])
 
+  const contentStyle = isWorkspaceRoute
+    ? undefined
+    : { paddingLeft: `${asideWidth}px` }
+  const navStyle = isWorkspaceRoute
+    ? undefined
+    : { left: `${asideWidth}px`, width: `calc(100% - ${asideWidth}px)` }
 
-  const layoutAsidePadding = isWorkspaceRoute ? '' : 'xl:pl-64'
-  const layoutOffsetClass = isWorkspaceRoute ? '' : isAsideMobileExpanded ? 'ml-64 lg:ml-0' : ''
+  if (!isAuthBootstrapped) {
+    return (
+      <div className={`${darkMode ? 'dark' : ''}`}>
+        <div className={`min-h-screen ${bgColor} dark:bg-dark-800 dark:text-slate-100`}>
+          <div className="flex min-h-screen items-center justify-center px-6 py-10">
+            <div className="w-full max-w-md rounded-[12px] border border-slate-200 bg-white p-6 shadow-[0_24px_60px_-40px_rgba(15,23,42,0.25)] dark:border-slate-800 dark:bg-dark-900">
+              <p className="text-[11px] font-semibold uppercase tracking-[0.24em] text-slate-400">
+                Loading
+              </p>
+              <h1 className="mt-3 text-[28px] font-semibold tracking-[-0.03em] text-slate-900 dark:text-slate-50">
+                Restoring your workspace.
+              </h1>
+              <p className="mt-3 text-[14px] leading-6 text-slate-500 dark:text-slate-400">
+                We are checking your session before opening the app.
+              </p>
+            </div>
+          </div>
+        </div>
+      </div>
+    )
+  }
+
+
+  if (!effectiveToken) {
+    return (
+      <div className={`${darkMode ? 'dark' : ''}`}>
+        <div className={`min-h-screen ${bgColor} px-6 py-10 dark:bg-dark-800 dark:text-slate-100`}>
+          <div className="mx-auto flex min-h-[calc(100vh-5rem)] max-w-md items-center justify-center">
+            <div className="w-full rounded-[12px] border border-slate-200 bg-white p-6 shadow-[0_24px_60px_-40px_rgba(15,23,42,0.25)] dark:border-slate-800 dark:bg-dark-900">
+              <p className="text-[11px] font-semibold uppercase tracking-[0.24em] text-slate-400">
+                Session expired
+              </p>
+              <h1 className="mt-3 text-[28px] font-semibold tracking-[-0.03em] text-slate-900 dark:text-slate-50">
+                Sign in again to continue.
+              </h1>
+              <p className="mt-3 text-[14px] leading-6 text-slate-500 dark:text-slate-400">
+                Your session has ended. Open the sign-in screen to continue working in the workspace.
+              </p>
+              <div className="mt-6">
+                <Link
+                  className="inline-flex h-11 items-center rounded-[8px] bg-slate-900 px-4 text-[14px] font-medium text-white dark:bg-slate-100 dark:text-slate-900"
+                  href="/login"
+                >
+                  Open login
+                </Link>
+              </div>
+            </div>
+          </div>
+        </div>
+      </div>
+    )
+  }
 
   return (
     <div className={`${darkMode ? 'dark' : ''} overflow-hidden lg:overflow-visible`}>
       <div
-        className={`${layoutAsidePadding} ${layoutOffsetClass} pt-12 min-h-screen w-screen transition-position lg:w-auto ${bgColor}  dark:bg-dark-800 dark:text-slate-100`}
+        className={`pt-12 min-h-screen ${bgColor} dark:bg-dark-800 dark:text-slate-100`}
+        style={contentStyle}
       >
         <NavBar
           menu={[]}
-          className={`${layoutAsidePadding} ${layoutOffsetClass}`}
+          className=""
           contentClassName="w-full"
+          style={navStyle}
         >
           <div className="flex min-w-0 flex-1 items-center justify-between px-3 sm:px-5">
             <div className="flex min-w-0 items-center">
-              {!isWorkspaceRoute && (
-                <>
-                  <NavBarItemPlain
-                    display="flex lg:hidden"
-                    onClick={() => setIsAsideMobileExpanded(!isAsideMobileExpanded)}
-                  >
-                    <BaseIcon path={isAsideMobileExpanded ? mdiBackburger : mdiForwardburger} size="24" />
-                  </NavBarItemPlain>
-                  <NavBarItemPlain
-                    display="hidden lg:flex xl:hidden"
-                    onClick={() => setIsAsideLgActive(true)}
-                  >
-                    <BaseIcon path={mdiMenu} size="24" />
-                  </NavBarItemPlain>
-                </>
+              {isWorkspaceRoute && (
+                <Link
+                  className="truncate text-[14px] font-semibold tracking-[-0.02em] text-slate-700 dark:text-slate-100"
+                  href="/workspace"
+                >
+                  AI Chat Workspace
+                </Link>
               )}
-              <Link
-                className="truncate text-[14px] font-semibold tracking-[-0.02em] text-slate-700 dark:text-slate-100"
-                href="/workspace"
-              >
-                AI Chat Workspace
-              </Link>
             </div>
             <div className="relative">
               <button
@@ -221,10 +274,7 @@ export default function LayoutAuthenticated({
         </NavBar>
         {!isWorkspaceRoute && (
           <AsideMenu
-            isAsideMobileExpanded={isAsideMobileExpanded}
-            isAsideLgActive={isAsideLgActive}
             menu={menuAside}
-            onAsideLgClose={() => setIsAsideLgActive(false)}
           />
         )}
         {children}
diff --git a/frontend/src/menuAside.ts b/frontend/src/menuAside.ts
index b49a045..2951ed6 100644
--- a/frontend/src/menuAside.ts
+++ b/frontend/src/menuAside.ts
@@ -1,5 +1,6 @@
 import * as icon from '@mdi/js';
 import { MenuAsideItem } from './interfaces'
+import { ADMIN_ENTRY_PERMISSIONS } from './helpers/userPermissions'
 
 const backofficeMenu: MenuAsideItem[] = [
   {
@@ -83,7 +84,7 @@ const menuAside: MenuAsideItem[] = [
     label: 'Admin',
     icon: icon.mdiCogOutline,
     menu: backofficeMenu,
-    permissions: 'READ_USERS'
+    permissions: ADMIN_ENTRY_PERMISSIONS
   },
 ]
 
diff --git a/frontend/src/pages/_app.tsx b/frontend/src/pages/_app.tsx
index 2a0f001..17487b6 100644
--- a/frontend/src/pages/_app.tsx
+++ b/frontend/src/pages/_app.tsx
@@ -7,7 +7,7 @@ import { store } from '../stores/store';
 import { Provider } from 'react-redux';
 import '../css/main.css';
 import 'react-toastify/dist/ReactToastify.css';
-import { ToastContainer } from 'react-toastify';
+import { ToastContainer, toast } from 'react-toastify';
 import axios from 'axios';
 import { baseURLApi } from '../config';
 import { useRouter } from 'next/router';
@@ -18,6 +18,7 @@ import { appWithTranslation } from 'next-i18next';
 import '../i18n';
 import IntroGuide from '../components/IntroGuide';
 import { appSteps,  loginSteps, usersSteps, rolesSteps } from '../stores/introSteps';
+import { logoutUser } from '../stores/authSlice';
 
 // Initialize axios
 axios.defaults.baseURL = process.env.NEXT_PUBLIC_BACK_API
@@ -41,24 +42,60 @@ function MyApp({ Component, pageProps }: AppPropsWithLayout) {
   const [stepsEnabled, setStepsEnabled] = React.useState(false);
   const [stepName, setStepName] = React.useState('');
   const [steps, setSteps] = React.useState([]);
+  const unauthorizedToastLock = React.useRef(false);
 
-    axios.interceptors.request.use(
-        config => {
-            const token = localStorage.getItem('token');
+  React.useEffect(() => {
+    const requestInterceptor = axios.interceptors.request.use(
+      (config) => {
+        const token = localStorage.getItem('token');
 
-            if (token) {
-                config.headers.Authorization = `Bearer ${token}`;
-            } else {
-                delete config.headers.Authorization;
-            }
-
-            return config;
-        },
-        error => {
-            return Promise.reject(error);
+        if (token) {
+          config.headers.Authorization = `Bearer ${token}`;
+        } else {
+          delete config.headers.Authorization;
         }
+
+        return config;
+      },
+      (error) => {
+        return Promise.reject(error);
+      },
     );
 
+    const responseInterceptor = axios.interceptors.response.use(
+      (response) => {
+        return response;
+      },
+      (error) => {
+        const status = error?.response?.status;
+        const requestUrl = String(error?.config?.url || '');
+        const isSigninRequest = requestUrl.includes('auth/signin/local');
+
+        if (status === 401 && !isSigninRequest) {
+          store.dispatch(logoutUser());
+
+          if (!unauthorizedToastLock.current) {
+            unauthorizedToastLock.current = true;
+            toast.error('Session expired. Please sign in again.', {
+              position: 'bottom-center',
+            });
+
+            window.setTimeout(() => {
+              unauthorizedToastLock.current = false;
+            }, 3000);
+          }
+        }
+
+        return Promise.reject(error);
+      },
+    );
+
+    return () => {
+      axios.interceptors.request.eject(requestInterceptor);
+      axios.interceptors.response.eject(responseInterceptor);
+    };
+  }, []);
+
     // TODO: Remove this code in future releases
     React.useEffect(() => {
         const allowedOrigin = (() => {
diff --git a/frontend/src/pages/dashboard.tsx b/frontend/src/pages/dashboard.tsx
index e160e07..41cd80d 100644
--- a/frontend/src/pages/dashboard.tsx
+++ b/frontend/src/pages/dashboard.tsx
@@ -18,7 +18,7 @@ import type { ReactElement } from 'react';
 import BaseIcon from '../components/BaseIcon';
 import SectionMain from '../components/SectionMain';
 import { getPageTitle } from '../config';
-import { hasPermission } from '../helpers/userPermissions';
+import { ADMIN_ENTRY_PERMISSIONS, hasPermission } from '../helpers/userPermissions';
 import LayoutAuthenticated from '../layouts/Authenticated';
 import { useAppSelector } from '../stores/hooks';
 
@@ -283,7 +283,7 @@ function Dashboard() {
 }
 
 Dashboard.getLayout = function getLayout(page: ReactElement) {
-  return <LayoutAuthenticated permission="READ_USERS">{page}</LayoutAuthenticated>;
+  return <LayoutAuthenticated permission={ADMIN_ENTRY_PERMISSIONS}>{page}</LayoutAuthenticated>;
 };
 
 export default Dashboard;
diff --git a/frontend/src/pages/profile.tsx b/frontend/src/pages/profile.tsx
index a894e2a..019a9f6 100644
--- a/frontend/src/pages/profile.tsx
+++ b/frontend/src/pages/profile.tsx
@@ -94,7 +94,7 @@ const ProfilePage = () => {
         <title>{getPageTitle('Profile')}</title>
       </Head>
       <SectionMain>
-        <div className="mx-auto flex w-full max-w-5xl flex-col gap-5">
+        <div className="flex w-full flex-col gap-5">
           <div className="rounded-[12px] border border-slate-200 bg-white px-6 py-6">
             <Link
               className="inline-flex items-center gap-2 text-[12px] font-medium text-slate-500"
diff --git a/frontend/src/pages/settings.tsx b/frontend/src/pages/settings.tsx
index 45184e0..a9a83c0 100644
--- a/frontend/src/pages/settings.tsx
+++ b/frontend/src/pages/settings.tsx
@@ -13,13 +13,16 @@ import BaseIcon from '../components/BaseIcon';
 import LayoutAuthenticated from '../layouts/Authenticated';
 import SectionMain from '../components/SectionMain';
 import { getPageTitle } from '../config';
-import { hasPermission } from '../helpers/userPermissions';
+import { ADMIN_ENTRY_PERMISSIONS, hasPermission } from '../helpers/userPermissions';
 import { useAppSelector } from '../stores/hooks';
 
 function SettingsPage() {
   const { currentUser } = useAppSelector((state) => state.auth);
-  const canAccessAdmin = hasPermission(currentUser, 'READ_USERS');
+  const canAccessAdmin = hasPermission(currentUser, ADMIN_ENTRY_PERMISSIONS);
   const canAccessApiDocs = hasPermission(currentUser, 'READ_API_DOCS');
+  const apiDocsHref = process.env.NEXT_PUBLIC_BACK_API
+    ? `${process.env.NEXT_PUBLIC_BACK_API.replace(/\/api$/, '')}/api-docs/`
+    : '/api-docs/';
 
   return (
     <>
@@ -27,7 +30,7 @@ function SettingsPage() {
         <title>{getPageTitle('Settings')}</title>
       </Head>
       <SectionMain>
-        <div className="mx-auto flex w-full max-w-4xl flex-col gap-6">
+        <div className="flex w-full flex-col gap-6">
           <div className="rounded-[12px] border border-slate-200 bg-white px-6 py-6">
             <p className="text-[11px] font-medium uppercase tracking-[0.28em] text-slate-400">
               Settings
@@ -92,9 +95,10 @@ function SettingsPage() {
             )}
 
             {canAccessApiDocs && (
-              <Link
+              <a
                 className="group rounded-[12px] border border-slate-200 bg-white px-5 py-5"
-                href="/api-docs"
+                href={apiDocsHref}
+                rel="noreferrer"
                 target="_blank"
               >
                 <div className="flex items-start justify-between gap-4">
@@ -115,7 +119,7 @@ function SettingsPage() {
                     <BaseIcon path={mdiChevronRight} size={18} />
                   </div>
                 </div>
-              </Link>
+              </a>
             )}
           </div>
         </div>
diff --git a/frontend/src/styles.ts b/frontend/src/styles.ts
index a969b60..30ef619 100644
--- a/frontend/src/styles.ts
+++ b/frontend/src/styles.ts
@@ -56,28 +56,52 @@ export const white: StyleObject = {
 
 export const dataGridStyles = {
   '& .MuiDataGrid-cell': {
-    paddingX: 3,
+    paddingX: 1.75,
     border: 'none',
+    alignItems: 'center',
   },
   '& .MuiDataGrid-columnHeader': {
-    paddingX: 3,
+    paddingX: 1.75,
   },
   '& .MuiDataGrid-columnHeaderCheckbox': {
-    paddingX: 0,
+    paddingX: 0.5,
   },
   '& .MuiDataGrid-columnHeaders': {
-    paddingY: 4,
-    borderStartStartRadius: 7,
-    borderStartEndRadius: 7,
+    paddingY: 0,
+    minHeight: '48px !important',
+    maxHeight: '48px !important',
+    borderStartStartRadius: 10,
+    borderStartEndRadius: 10,
   },
   '& .MuiDataGrid-footerContainer': {
-    paddingY: 0.5,
-    borderEndStartRadius: 7,
-    borderEndEndRadius: 7,
+    minHeight: '48px',
+    borderTop: '1px solid rgb(226 232 240)',
+    borderEndStartRadius: 10,
+    borderEndEndRadius: 10,
+    color: 'rgb(100 116 139)',
   },
   '& .MuiDataGrid-root': {
     border: 'none',
   },
+  '& .MuiDataGrid-row': {
+    minHeight: '56px !important',
+    maxHeight: '56px !important',
+  },
+  '& .MuiDataGrid-cellCheckbox': {
+    paddingLeft: 1,
+    paddingRight: 1,
+  },
+  '& .MuiDataGrid-columnHeaderTitleContainer': {
+    paddingLeft: 0,
+    paddingRight: 0,
+  },
+  '& .MuiDataGrid-columnHeaderTitle': {
+    fontSize: '11px',
+    fontWeight: 600,
+    letterSpacing: '0.14em',
+    textTransform: 'none',
+    color: 'rgb(148 163 184)',
+  },
 };
 
 export const basic: StyleObject = {
diff --git a/nginx.conf b/nginx.conf
index 926fcdd..c28638f 100644
--- a/nginx.conf
+++ b/nginx.conf
@@ -29,6 +29,10 @@ http {
         }
 
 
+        location = /api-docs {
+            return 301 /api-docs/;
+        }
+
         location /api-docs/ {
             proxy_set_header Host $host;
             proxy_set_header X-Real-IP $remote_addr;
@@ -93,4 +97,4 @@ http {
             proxy_set_header X-Forwarded-Proto $scheme;
         }
     }
-}
\ No newline at end of file
+}