1518 extensibility front add an application section in settings (#15056)

Protected by IS_APPLICATION_ENABLED featureFlag

Add `Application` section in settings

<img width="301" height="137" alt="image"
src="https://github.com/user-attachments/assets/ee53bdd2-36f6-45c6-8646-17b1e08abf00"
/>


A `settings/applications` route listing all installed applications

<img width="661" height="428" alt="image"
src="https://github.com/user-attachments/assets/69d534c4-4e9e-452a-a3d9-ded0223bb457"
/>

Introduce a new Tag for application managed items

<img width="885" height="759" alt="image"
src="https://github.com/user-attachments/assets/19767be5-61e5-4bd2-a51d-54ed9bfb1923"
/>



A `settings/applications/<application_id>` details setting page listing
all objects, serverlessFunctions and agents created by the application:

<img width="917" height="778" alt="image"
src="https://github.com/user-attachments/assets/7fc056a6-1d73-4242-b2eb-6f8955d8597d"
/>

A `settings/applications/<application_id>/<serverless_function_id>`

<img width="905" height="652" alt="image"
src="https://github.com/user-attachments/assets/56ca0021-26bf-42cb-9abf-34879f16050a"
/>

Add trigger tab in serverless function details (readonly for now)

<img width="899" height="724" alt="image"
src="https://github.com/user-attachments/assets/5eeefa35-f2a4-4fd8-a640-7b5c5891f226"
/>

Set object, serverless and agent setting detail pages readonly for
managed items
<img width="1075" height="859" alt="image"
src="https://github.com/user-attachments/assets/57c73d69-4980-47a2-b752-8dc5ab494530"
/>
<img width="648" height="582" alt="image"
src="https://github.com/user-attachments/assets/5ad5f3f7-3bc3-4e40-870a-4981c6492524"
/>
<img width="982" height="692" alt="image"
src="https://github.com/user-attachments/assets/7ad756c4-5d33-4a0a-9eb8-416c040362b9"
/>
<img width="1077" height="647" alt="image"
src="https://github.com/user-attachments/assets/e086b9f5-4062-4d10-82a9-4023de3cad3f"
/>

packages/twenty-server/src/engine/metadata-modules/agent/agent.resolver.ts

@@ -1,8 +1,5 @@
 import { UseGuards } from '@nestjs/common';
 import { Args, Mutation, Query, Resolver } from '@nestjs/graphql';
-import { InjectRepository } from '@nestjs/typeorm';
-
-import { Repository } from 'typeorm';
 
 import { FeatureFlagKey } from 'src/engine/core-modules/feature-flag/enums/feature-flag-key.enum';
 import { Workspace } from 'src/engine/core-modules/workspace/workspace.entity';
@@ -16,7 +13,6 @@ import { CreateAgentHandoffInput } from 'src/engine/metadata-modules/agent/dtos/
 import { RemoveAgentHandoffInput } from 'src/engine/metadata-modules/agent/dtos/remove-agent-handoff.input';
 
 import { AgentHandoffService } from './agent-handoff.service';
-import { AgentEntity } from './agent.entity';
 import { AgentService } from './agent.service';
 
 import { AgentHandoffDTO } from './dtos/agent-handoff.dto';
@@ -29,8 +25,6 @@ import { UpdateAgentInput } from './dtos/update-agent.input';
 @Resolver()
 export class AgentResolver {
   constructor(
-    @InjectRepository(AgentEntity)
-    private readonly agentRepository: Repository<AgentEntity>,
     private readonly agentService: AgentService,
     private readonly agentHandoffService: AgentHandoffService,
   ) {}

packages/twenty-server/src/engine/metadata-modules/agent/dtos/agent.dto.ts

@@ -60,6 +60,9 @@ export class AgentDTO {
   @HideField()
   workspaceId: string;
 
+  @Field(() => UUIDScalarType, { nullable: true })
+  applicationId?: string;
+
   @IsDateString()
   @Field()
   createdAt: Date;