Connect logic in Workspace Entity Manager (#13078)

Large PR, sorry for that. Don't hesitate to reach me to have full
context (env. 500lines for integration and unit tests)

- Add connect logic in Workspace Entity Manager
- Update QueryDeepPartialEntity type to enable dev to use connect
- Add integration test on createOne / createMany
- Add unit test to cover main utils
- Remove feature flag on connect

closes https://github.com/twentyhq/core-team-issues/issues/1148
closes https://github.com/twentyhq/core-team-issues/issues/1147

packages/twenty-server/src/engine/twenty-orm/utils/get-object-metadata-from-entity-target.util.ts

@@ -0,0 +1,49 @@
+import { EntitySchema, EntityTarget, ObjectLiteral } from 'typeorm';
+
+import { WorkspaceInternalContext } from 'src/engine/twenty-orm/interfaces/workspace-internal-context.interface';
+
+import { getObjectMetadataMapItemByNameSingular } from 'src/engine/metadata-modules/utils/get-object-metadata-map-item-by-name-singular.util';
+import {
+  TwentyORMException,
+  TwentyORMExceptionCode,
+} from 'src/engine/twenty-orm/exceptions/twenty-orm.exception';
+import { WorkspaceEntitiesStorage } from 'src/engine/twenty-orm/storage/workspace-entities.storage';
+
+export const getObjectMetadataFromEntityTarget = <T extends ObjectLiteral>(
+  entityTarget: EntityTarget<T>,
+  internalContext: WorkspaceInternalContext,
+) => {
+  const objectMetadataName =
+    typeof entityTarget === 'string'
+      ? entityTarget
+      : WorkspaceEntitiesStorage.getObjectMetadataName(
+          internalContext.workspaceId,
+          entityTarget as EntitySchema,
+        );
+
+  if (!objectMetadataName) {
+    throw new TwentyORMException(
+      'Object metadata name is missing',
+      TwentyORMExceptionCode.MALFORMED_METADATA,
+    );
+  }
+
+  const objectMetadata = getObjectMetadataMapItemByNameSingular(
+    internalContext.objectMetadataMaps,
+    objectMetadataName,
+  );
+
+  if (!objectMetadata) {
+    throw new TwentyORMException(
+      `Object metadata for object "${objectMetadataName}" is missing ` +
+        `in workspace "${internalContext.workspaceId}" ` +
+        `with object metadata collection length: ${
+          Object.keys(internalContext.objectMetadataMaps.idByNameSingular)
+            .length
+        }`,
+      TwentyORMExceptionCode.MALFORMED_METADATA,
+    );
+  }
+
+  return objectMetadata;
+};