[SDK] Agent in manifest (#18431)

# Introduction
Adding agent in the manifest, required for twenty standard app
extraction out of twenty-server

packages/twenty-server/src/engine/core-modules/application/application-manifest/utils/compute-application-manifest-all-universal-flat-entity-maps.util.ts

@@ -1,6 +1,5 @@
 import { type Manifest } from 'twenty-shared/application';
 
-import { type FlatApplication } from 'src/engine/core-modules/application/types/flat-application.type';
 import { fromCommandMenuItemManifestToUniversalFlatCommandMenuItem } from 'src/engine/core-modules/application/application-manifest/converters/from-command-menu-item-manifest-to-universal-flat-command-menu-item.util';
 import { fromFieldManifestToUniversalFlatFieldMetadata } from 'src/engine/core-modules/application/application-manifest/converters/from-field-manifest-to-universal-flat-field-metadata.util';
 import { fromFrontComponentManifestToUniversalFlatFrontComponent } from 'src/engine/core-modules/application/application-manifest/converters/from-front-component-manifest-to-universal-flat-front-component.util';
@@ -18,6 +17,8 @@ import { fromViewFilterGroupManifestToUniversalFlatViewFilterGroup } from 'src/e
 import { fromViewFilterManifestToUniversalFlatViewFilter } from 'src/engine/core-modules/application/application-manifest/converters/from-view-filter-manifest-to-universal-flat-view-filter.util';
 import { fromViewGroupManifestToUniversalFlatViewGroup } from 'src/engine/core-modules/application/application-manifest/converters/from-view-group-manifest-to-universal-flat-view-group.util';
 import { fromViewManifestToUniversalFlatView } from 'src/engine/core-modules/application/application-manifest/converters/from-view-manifest-to-universal-flat-view.util';
+import { type FlatApplication } from 'src/engine/core-modules/application/types/flat-application.type';
+import { fromAgentManifestToUniversalFlatAgent } from 'src/engine/core-modules/application/utils/from-agent-manifest-to-universal-flat-agent.util';
 import { createEmptyAllFlatEntityMaps } from 'src/engine/metadata-modules/flat-entity/constant/create-empty-all-flat-entity-maps.constant';
 import { type AllFlatEntityMaps } from 'src/engine/metadata-modules/flat-entity/types/all-flat-entity-maps.type';
 import { addUniversalFlatEntityToUniversalFlatEntityMapsThroughMutationOrThrow } from 'src/engine/workspace-manager/workspace-migration/universal-flat-entity/utils/add-universal-flat-entity-to-universal-flat-entity-maps-through-mutation-or-throw.util';
@@ -140,6 +141,17 @@ export const computeApplicationManifestAllUniversalFlatEntityMaps = ({
     });
   }
 
+  for (const agentManifest of manifest.agents ?? []) {
+    addUniversalFlatEntityToUniversalFlatEntityMapsThroughMutationOrThrow({
+      universalFlatEntity: fromAgentManifestToUniversalFlatAgent({
+        agentManifest,
+        applicationUniversalIdentifier,
+        now,
+      }),
+      universalFlatEntityMapsToMutate: allUniversalFlatEntityMaps.flatAgentMaps,
+    });
+  }
+
   for (const viewManifest of manifest.views ?? []) {
     addUniversalFlatEntityToUniversalFlatEntityMapsThroughMutationOrThrow({
       universalFlatEntity: fromViewManifestToUniversalFlatView({

packages/twenty-server/src/engine/core-modules/application/constants/application-manifest-metadata-names.constant.ts

@@ -7,6 +7,7 @@ export const APPLICATION_MANIFEST_METADATA_NAMES = [
   'frontComponent',
   'role',
   'skill',
+  'agent',
   'view',
   'viewField',
   'viewFieldGroup',

packages/twenty-server/src/engine/core-modules/application/utils/from-agent-manifest-to-universal-flat-agent.util.ts

@@ -0,0 +1,35 @@
+import { type AgentManifest } from 'twenty-shared/application';
+
+import {
+  DEFAULT_SMART_MODEL,
+  type ModelId,
+} from 'src/engine/metadata-modules/ai/ai-models/constants/ai-models.const';
+import { type UniversalFlatAgent } from 'src/engine/workspace-manager/workspace-migration/universal-flat-entity/types/universal-flat-agent.type';
+
+export const fromAgentManifestToUniversalFlatAgent = ({
+  agentManifest,
+  applicationUniversalIdentifier,
+  now,
+}: {
+  agentManifest: AgentManifest;
+  applicationUniversalIdentifier: string;
+  now: string;
+}): UniversalFlatAgent => {
+  return {
+    universalIdentifier: agentManifest.universalIdentifier,
+    applicationUniversalIdentifier,
+    name: agentManifest.name,
+    label: agentManifest.label,
+    icon: agentManifest.icon ?? null,
+    description: agentManifest.description ?? null,
+    prompt: agentManifest.prompt,
+    modelId: (agentManifest.modelId as ModelId) ?? DEFAULT_SMART_MODEL,
+    responseFormat: { type: 'text' },
+    modelConfiguration: null,
+    evaluationInputs: [],
+    isCustom: false,
+    createdAt: now,
+    updatedAt: now,
+    deletedAt: null,
+  };
+};