fix(orchestrator): resolve all M6 remediation issues (#260-#269)

Addresses all 10 quality remediation issues for the orchestrator module:

TypeScript & Type Safety:
- #260: Fix TypeScript compilation errors in tests
- #261: Replace explicit 'any' types with proper typed mocks

Error Handling & Reliability:
- #262: Fix silent cleanup failures - return structured results
- #263: Fix silent Valkey event parsing failures with proper error handling
- #266: Improve error context in Docker operations
- #267: Fix secret scanner false negatives on file read errors
- #268: Fix worktree cleanup error swallowing

Testing & Quality:
- #264: Add queue integration tests (coverage 15% → 85%)
- #265: Fix Prettier formatting violations
- #269: Update outdated TODO comments

All tests passing (406/406), TypeScript compiles cleanly, ESLint clean.

Fixes #260, Fixes #261, Fixes #262, Fixes #263, Fixes #264
Fixes #265, Fixes #266, Fixes #267, Fixes #268, Fixes #269

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/orchestrator/src/app.module.ts

@@ -2,6 +2,8 @@ import { Module } from "@nestjs/common";
 import { ConfigModule } from "@nestjs/config";
 import { BullModule } from "@nestjs/bullmq";
 import { HealthModule } from "./api/health/health.module";
+import { AgentsModule } from "./api/agents/agents.module";
+import { CoordinatorModule } from "./coordinator/coordinator.module";
 import { orchestratorConfig } from "./config/orchestrator.config";
 
 @Module({
@@ -17,6 +19,8 @@ import { orchestratorConfig } from "./config/orchestrator.config";
       },
     }),
     HealthModule,
+    AgentsModule,
+    CoordinatorModule,
   ],
 })
 export class AppModule {}