Enhance role-check system with stricter checks (#15392)

## Overview

This PR strengthens our permission system by introducing more granular
role-based access control across the platform.

## Changes

### New Permissions Added
- **Applications** - Control who can install and manage applications
- **Layouts** - Control who can customize page layouts and UI structure
- **AI** - Control access to AI features and agents
- **Upload File** - Separate permission for file uploads
- **Download File** - Separate permission for file downloads (frontend
visibility)

### Security Enhancements
- Implemented whitelist-based validation for workspace field updates
- Added explicit permission guards to core entity resolvers
- Enhanced ESLint rule to enforce permission checks on all mutations
- Created `CustomPermissionGuard` and `NoPermissionGuard` for better
code documentation

### Affected Components
- Core entity resolvers: webhooks, files, domains, applications,
layouts, postgres credentials
- Workspace update mutations now use whitelist validation
- Settings UI updated with new permission controls

### Developer Experience
- ESLint now catches missing permission guards during development
- Explicit guard markers make permission requirements clear in code
review
- Comprehensive test coverage for new permission logic

## Testing
- ✅ All TypeScript type checks pass
- ✅ ESLint validation passes
- ✅ New permission guards properly enforced
- ✅ Frontend UI displays new permissions correctly

## Migration Notes
Existing workspaces will need to assign the new permissions to roles as
needed. By default, all new permissions are set to `false` for non-admin
roles.

packages/twenty-server/src/engine/metadata-modules/flat-view/utils/from-create-view-input-to-flat-view-to-create.util.ts

@@ -5,13 +5,16 @@ import { type FlatView } from 'src/engine/metadata-modules/flat-view/types/flat-
 import { type CreateViewInput } from 'src/engine/metadata-modules/view/dtos/inputs/create-view.input';
 import { ViewOpenRecordIn } from 'src/engine/metadata-modules/view/enums/view-open-record-in';
 import { ViewType } from 'src/engine/metadata-modules/view/enums/view-type.enum';
+import { ViewVisibility } from 'src/engine/metadata-modules/view/enums/view-visibility.enum';
 
 export const fromCreateViewInputToFlatViewToCreate = ({
   createViewInput: rawCreateViewInput,
   workspaceId,
+  createdByUserWorkspaceId,
 }: {
   createViewInput: CreateViewInput;
   workspaceId: string;
+  createdByUserWorkspaceId?: string;
 }): FlatView => {
   const { objectMetadataId, ...createViewInput } =
     trimAndRemoveDuplicatedWhitespacesFromObjectStringProperties(
@@ -44,6 +47,8 @@ export const fromCreateViewInputToFlatViewToCreate = ({
     position: createViewInput.position ?? 0,
     type: createViewInput.type ?? ViewType.TABLE,
     universalIdentifier: createViewInput.universalIdentifier ?? viewId,
+    visibility: createViewInput.visibility ?? ViewVisibility.WORKSPACE,
+    createdByUserWorkspaceId: createdByUserWorkspaceId ?? null,
     viewFieldIds: [],
     viewFilterIds: [],
     viewGroupIds: [],