feat(M4-013,M5-001,M5-002,M5-003): routing e2e tests, agent config loading, model+agent switching (#323)

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>

apps/gateway/src/commands/command-executor-p8012.spec.ts

@@ -40,6 +40,7 @@ const mockRedis = {
   del: vi.fn(),
 };
 
+// Mock agent config returned by brain.agents.findByName for "my-agent-id"
 const mockAgentConfig = {
   id: 'my-agent-id',
   name: 'my-agent-id',
@@ -67,6 +68,10 @@ const mockBrain = {
   },
 };
 
+const mockChatGateway = {
+  broadcastSessionInfo: vi.fn(),
+};
+
 function buildService(): CommandExecutorService {
   return new CommandExecutorService(
     mockRegistry as never,
@@ -76,7 +81,7 @@ function buildService(): CommandExecutorService {
     mockRedis as never,
     mockBrain as never,
     null,
-    null,
+    mockChatGateway as never,
   );
 }
 

apps/gateway/src/commands/command-executor.service.ts

@@ -1,15 +1,15 @@
 import { forwardRef, Inject, Injectable, Logger, Optional } from '@nestjs/common';
 import type { QueueHandle } from '@mosaic/queue';
-import type { SlashCommandPayload, SlashCommandResultPayload } from '@mosaic/types';
 import type { Brain } from '@mosaic/brain';
+import type { SlashCommandPayload, SlashCommandResultPayload } from '@mosaic/types';
 import { AgentService } from '../agent/agent.service.js';
 import { ChatGateway } from '../chat/chat.gateway.js';
 import { SessionGCService } from '../gc/session-gc.service.js';
 import { SystemOverrideService } from '../preferences/system-override.service.js';
 import { ReloadService } from '../reload/reload.service.js';
+import { BRAIN } from '../brain/brain.tokens.js';
 import { COMMANDS_REDIS } from './commands.tokens.js';
 import { CommandRegistryService } from './command-registry.service.js';
-import { BRAIN } from '../brain/brain.tokens.js';
 
 @Injectable()
 export class CommandExecutorService {