[FRONT COMPONENTS] Introduce conditionalAvailabilityExpression to command menu items (#18319)

## PR Description

- Uses `expr-eval` to enable front components (SDK plugins) to define
conditional availability as declarative expressions.
- Moves shared types and constants to `twenty-shared`
- Introduces a `conditionalAvailabilityExpression` field on
`CommandMenuItemEntity`, allowing command menu items to store an
`expr-eval` compatible expression string that is evaluated against a
CommandMenuContext to determine if the item should be shown.
- Creates an esbuild transform plugin
`conditional-availability-transform-plugin` in `twenty-sdk` that
converts TypeScript conditional availability expressions into
`expr-eval` compatible syntax at build time, so SDK developers can write
natural TS expressions that get transformed to evaluable strings.
- Removes deprecated `forceRegisteredActionsByKey` state and its usage.
- Creates `useCommandMenuContext` hook that builds the full
`CommandMenuContext` object from React state, which is then passed to
`useCommandMenuItemFrontComponentActions` for evaluating conditional
availability expressions.

packages/twenty-server/src/modules/workspace-member/listeners/workspace-member-avatar-file-deletion.listener.ts

@@ -5,12 +5,11 @@ import {
   ObjectRecordDestroyEvent,
   ObjectRecordUpdateEvent,
 } from 'twenty-shared/database-events';
-import { FileFolder } from 'twenty-shared/types';
+import { FileFolder, FeatureFlagKey } from 'twenty-shared/types';
 import { isDefined } from 'twenty-shared/utils';
 
 import { OnDatabaseBatchEvent } from 'src/engine/api/graphql/graphql-query-runner/decorators/on-database-batch-event.decorator';
 import { DatabaseEventAction } from 'src/engine/api/graphql/graphql-query-runner/enums/database-event-action';
-import { FeatureFlagKey } from 'src/engine/core-modules/feature-flag/enums/feature-flag-key.enum';
 import { FeatureFlagService } from 'src/engine/core-modules/feature-flag/services/feature-flag.service';
 import { FileCorePictureService } from 'src/engine/core-modules/file/file-core-picture/services/file-core-picture.service';
 import { extractFileIdFromUrl } from 'src/engine/core-modules/file/files-field/utils/extract-file-id-from-url.util';