[AUDIT] Run knip over twenty-server (#21159)

# Introduction
Run [knip](https://knip.dev/) over twenty-server
Used config:
```json
{
  "$schema": "https://unpkg.com/knip@5/schema.json",
  "workspaces": {
    "packages/twenty-server": {
      "entry": [
        "src/main.ts",
        "src/command/command.ts",
        "src/queue-worker/queue-worker.ts",
        "src/database/scripts/setup-db.ts",
        "src/database/scripts/truncate-db.ts",
        "src/database/clickHouse/migrations/run-migrations.ts",
        "src/database/clickHouse/seeds/run-seeds.ts",
        "src/instrument.ts",
        "lingui.config.ts",
        "test/integration/graphql/codegen/index.ts",
        "test/integration/utils/setup-test.ts",
        "test/integration/utils/teardown-test.ts",
        "scripts/**/*.ts",
        "**/*.spec.ts",
        "**/*.integration-spec.ts"
      ],
      "project": ["src/**/*.ts", "test/**/*.ts", "scripts/**/*.ts"],
      "ignore": [
        "src/database/typeorm/**/migrations/**",
        "src/database/typeorm/**/*.entity.ts",
        "**/*.workspace-entity.ts",
        "**/logic-function-resource/constants/seed-project/**"
      ],
      "ignoreDependencies": ["@types/psl", "@types/aws-lambda"],
      "ignoreBinaries": ["nest", "lingui", "typeorm"]
    }
  }
}
```

packages/twenty-server/src/engine/metadata-modules/flat-entity/types/all-flat-entities.type.ts

@@ -1,4 +0,0 @@
-import { type AllFlatEntityTypesByMetadataName } from 'src/engine/metadata-modules/flat-entity/types/all-flat-entity-types-by-metadata-name';
-
-export type AllFlatEntities =
-  AllFlatEntityTypesByMetadataName[keyof AllFlatEntityTypesByMetadataName]['flatEntity'];

packages/twenty-server/src/engine/metadata-modules/flat-entity/types/flat-entity-maps-key-to-metadata.ts

@@ -1,8 +0,0 @@
-import { type AllMetadataName } from 'twenty-shared/metadata';
-
-export type FlatEntityMapsKeyToMetadata<T extends string> =
-  T extends `flat${infer Name}Maps`
-    ? Uncapitalize<Name> extends AllMetadataName
-      ? Uncapitalize<Name>
-      : never
-    : never;

packages/twenty-server/src/engine/metadata-modules/flat-entity/types/metadata-name-and-relations.type.ts

@@ -1,25 +0,0 @@
-import { type AllMetadataName } from 'twenty-shared/metadata';
-
-import { type MetadataEntity } from 'src/engine/metadata-modules/flat-entity/types/metadata-entity.type';
-
-type ExtractRelationIdProperties<T> = {
-  [K in keyof T]: K extends `${infer _}Id`
-    ? K extends 'id' | 'workspaceId'
-      ? never
-      : T[K] extends string | null | undefined
-        ? K
-        : never
-    : never;
-}[keyof T];
-
-type PropertyNameToRelationName<T extends string> = T extends `${infer Name}Id`
-  ? Name
-  : never;
-
-type ExtractEntityRelations<TEntity> = {
-  [K in ExtractRelationIdProperties<TEntity> as PropertyNameToRelationName<K>]: K;
-};
-
-export type MetadataNameAndRelations = {
-  [T in AllMetadataName]: Partial<ExtractEntityRelations<MetadataEntity<T>>>;
-};

packages/twenty-server/src/engine/metadata-modules/flat-entity/utils/delete-flat-entity-from-flat-entity-maps-or-throw.util.ts

@@ -1,70 +0,0 @@
-import isEmpty from 'lodash.isempty';
-import { isDefined, removePropertiesFromRecord } from 'twenty-shared/utils';
-
-import {
-  FlatEntityMapsException,
-  FlatEntityMapsExceptionCode,
-} from 'src/engine/metadata-modules/flat-entity/exceptions/flat-entity-maps.exception';
-import { type SyncableFlatEntity } from 'src/engine/metadata-modules/flat-entity/types/flat-entity-from.type';
-import { type FlatEntityMaps } from 'src/engine/metadata-modules/flat-entity/types/flat-entity-maps.type';
-
-export type DeleteFlatEntityFromFlatEntityMapsOrThrowArgs<
-  T extends SyncableFlatEntity,
-> = {
-  entityToDeleteId: string;
-  flatEntityMaps: FlatEntityMaps<T>;
-};
-
-export const deleteFlatEntityFromFlatEntityMapsOrThrow = <
-  T extends SyncableFlatEntity,
->({
-  flatEntityMaps,
-  entityToDeleteId,
-}: DeleteFlatEntityFromFlatEntityMapsOrThrowArgs<T>): FlatEntityMaps<T> => {
-  const universalIdentifierToDelete =
-    flatEntityMaps.universalIdentifierById[entityToDeleteId];
-
-  if (!isDefined(universalIdentifierToDelete)) {
-    throw new FlatEntityMapsException(
-      'deleteFlatEntityFromFlatEntityMapsOrThrow: entity to delete not found',
-      FlatEntityMapsExceptionCode.ENTITY_NOT_FOUND,
-    );
-  }
-
-  const updatedUniversalIdentifierByIdEntries = Object.entries(
-    flatEntityMaps.universalIdentifierById,
-  ).filter(([id]) => id !== entityToDeleteId);
-
-  const updatedUniversalIdentifiersByApplicationIdEntries = Object.entries(
-    flatEntityMaps.universalIdentifiersByApplicationId,
-  )
-    .map(([applicationId, universalIdentifiers]) => {
-      const stillPresentUniversalIdentifiers = universalIdentifiers?.filter(
-        (universalIdentifier) =>
-          universalIdentifier !== universalIdentifierToDelete,
-      );
-
-      if (
-        !isDefined(stillPresentUniversalIdentifiers) ||
-        isEmpty(stillPresentUniversalIdentifiers)
-      ) {
-        return undefined;
-      }
-
-      return [applicationId, stillPresentUniversalIdentifiers];
-    })
-    .filter(isDefined);
-
-  return {
-    byUniversalIdentifier: removePropertiesFromRecord(
-      flatEntityMaps.byUniversalIdentifier,
-      [universalIdentifierToDelete],
-    ),
-    universalIdentifierById: Object.fromEntries(
-      updatedUniversalIdentifierByIdEntries,
-    ),
-    universalIdentifiersByApplicationId: Object.fromEntries(
-      updatedUniversalIdentifiersByApplicationIdEntries,
-    ),
-  };
-};

packages/twenty-server/src/engine/metadata-modules/flat-entity/utils/get-metadata-name-from-flat-entity-maps-key.util.ts

@@ -1,12 +0,0 @@
-import { uncapitalize } from 'twenty-shared/utils';
-
-import { type FlatEntityMapsKeyToMetadata } from 'src/engine/metadata-modules/flat-entity/types/flat-entity-maps-key-to-metadata';
-
-export const getMetadataNameFromFlatEntityMapsKey = <T extends string>(
-  flatEntityMapsKey: T,
-): FlatEntityMapsKeyToMetadata<T> => {
-  const withoutPrefix = flatEntityMapsKey.replace(/^flat/, '');
-  const withoutSuffix = withoutPrefix.replace(/Maps$/, '');
-
-  return uncapitalize(withoutSuffix) as FlatEntityMapsKeyToMetadata<T>;
-};

packages/twenty-server/src/engine/metadata-modules/flat-entity/utils/replace-flat-entity-in-flat-entity-maps-or-throw.util.ts

@@ -1,28 +0,0 @@
-import { type SyncableFlatEntity } from 'src/engine/metadata-modules/flat-entity/types/flat-entity-from.type';
-import { type FlatEntityMaps } from 'src/engine/metadata-modules/flat-entity/types/flat-entity-maps.type';
-import { addFlatEntityToFlatEntityMapsOrThrow } from 'src/engine/metadata-modules/flat-entity/utils/add-flat-entity-to-flat-entity-maps-or-throw.util';
-import { deleteFlatEntityFromFlatEntityMapsOrThrow } from 'src/engine/metadata-modules/flat-entity/utils/delete-flat-entity-from-flat-entity-maps-or-throw.util';
-
-export type ReplaceFlatEntityInFlatEntityMapsOrThrowArgs<
-  T extends SyncableFlatEntity,
-> = {
-  flatEntity: T;
-  flatEntityMaps: FlatEntityMaps<T>;
-};
-
-export const replaceFlatEntityInFlatEntityMapsOrThrow = <
-  T extends SyncableFlatEntity,
->({
-  flatEntity,
-  flatEntityMaps,
-}: ReplaceFlatEntityInFlatEntityMapsOrThrowArgs<T>): FlatEntityMaps<T> => {
-  const flatEntityMapsToReplace = deleteFlatEntityFromFlatEntityMapsOrThrow({
-    flatEntityMaps,
-    entityToDeleteId: flatEntity.id,
-  });
-
-  return addFlatEntityToFlatEntityMapsOrThrow({
-    flatEntity,
-    flatEntityMaps: flatEntityMapsToReplace,
-  });
-};