[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-front/src/modules/ui/layout/show-page/components/FieldRichTextCard.tsx

@@ -1,5 +1,5 @@
 import { SKELETON_LOADER_HEIGHT_SIZES } from '@/activities/components/SkeletonLoader';
-import { type CoreObjectNameSingular } from '@/object-metadata/types/CoreObjectNameSingular';
+import { type CoreObjectNameSingular } from 'twenty-shared/types';
 import { recordStoreFamilySelector } from '@/object-record/record-store/states/selectors/recordStoreFamilySelector';
 import { useTargetRecord } from '@/ui/layout/contexts/useTargetRecord';
 import { ScrollWrapper } from '@/ui/utilities/scroll/components/ScrollWrapper';