feat: Add granular role-based permissions system with Entra ID integration

- Implement RBAC with viewer/editor/owner roles using bitwise permissions
      - Add AccessRole, AclEntry, and Group models for permission management
      - Create PermissionService for core permission logic and validation
      - Integrate Microsoft Graph API for Entra ID user/group search
      - Add middleware for resource access validation with custom ID resolvers
      - Implement bulk permission updates with transaction support
      - Create permission management UI with people picker and role selection
      - Add public sharing capabilities for resources
      - Include database migration for existing agent ownership
      - Support hybrid local/Entra ID identity management
      - Add comprehensive test coverage for all new services

chore: Update @librechat/data-schemas to version 0.0.9 and export common module in index.ts

fix: Update userGroup tests to mock logger correctly and change principalId expectation from null to undefined

client/src/components/SidePanel/Agents/Sharing/PublicSharingToggle.tsx

@@ -0,0 +1,59 @@
+import React from 'react';
+import { Globe } from 'lucide-react';
+import { Switch } from '~/components/ui';
+import { useLocalize } from '~/hooks';
+import AccessRolesPicker from './AccessRolesPicker';
+
+interface PublicSharingToggleProps {
+  isPublic: boolean;
+  publicRole: string;
+  onPublicToggle: (isPublic: boolean) => void;
+  onPublicRoleChange: (role: string) => void;
+  className?: string;
+  resourceType?: string;
+}
+
+export default function PublicSharingToggle({
+  isPublic,
+  publicRole,
+  onPublicToggle,
+  onPublicRoleChange,
+  className = '',
+  resourceType = 'agent',
+}: PublicSharingToggleProps) {
+  const localize = useLocalize();
+
+  return (
+    <div className={`space-y-3 border-t pt-4 ${className}`}>
+      <div className="flex items-center justify-between">
+        <div>
+          <h3 className="flex items-center gap-2 text-sm font-medium">
+            <Globe className="h-4 w-4" />
+            {localize('com_ui_share_with_everyone')}
+          </h3>
+          <p className="mt-1 text-xs text-muted-foreground">
+            {localize('com_ui_make_agent_available_all_users')}
+          </p>
+        </div>
+        <Switch
+          checked={isPublic}
+          onCheckedChange={onPublicToggle}
+          aria-label={localize('com_ui_share_with_everyone')}
+        />
+      </div>
+
+      {isPublic && (
+        <div>
+          <label className="mb-2 block text-sm font-medium">
+            {localize('com_ui_public_access_level')}
+          </label>
+          <AccessRolesPicker
+            resourceType={resourceType}
+            selectedRoleId={publicRole}
+            onRoleChange={onPublicRoleChange}
+          />
+        </div>
+      )}
+    </div>
+  );
+}