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

package-lock.json

@@ -67,6 +67,7 @@
         "@librechat/agents": "^2.4.41",
         "@librechat/api": "*",
         "@librechat/data-schemas": "*",
+        "@microsoft/microsoft-graph-client": "^3.0.7",
         "@node-saml/passport-saml": "^5.0.0",
         "@waylaidwanderer/fetch-event-source": "^3.0.1",
         "axios": "^1.8.2",
@@ -20306,6 +20307,33 @@
         "json-buffer": "3.0.1"
       }
     },
+    "node_modules/@microsoft/microsoft-graph-client": {
+      "version": "3.0.7",
+      "resolved": "https://registry.npmjs.org/@microsoft/microsoft-graph-client/-/microsoft-graph-client-3.0.7.tgz",
+      "integrity": "sha512-/AazAV/F+HK4LIywF9C+NYHcJo038zEnWkteilcxC1FM/uK/4NVGDKGrxx7nNq1ybspAroRKT4I1FHfxQzxkUw==",
+      "license": "MIT",
+      "dependencies": {
+        "@babel/runtime": "^7.12.5",
+        "tslib": "^2.2.0"
+      },
+      "engines": {
+        "node": ">=12.0.0"
+      },
+      "peerDependenciesMeta": {
+        "@azure/identity": {
+          "optional": true
+        },
+        "@azure/msal-browser": {
+          "optional": true
+        },
+        "buffer": {
+          "optional": true
+        },
+        "stream-browserify": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@mistralai/mistralai": {
       "version": "1.5.2",
       "resolved": "https://registry.npmjs.org/@mistralai/mistralai/-/mistralai-1.5.2.tgz",