Title#

feat: add Redis (BullMQ) foundation to agent-core

Problem#

Agent-core lacks Redis connectivity and queue infrastructure needed to support async phase dispatch (AW-4, AW-5, AW-7, AW-9).

Task / Link#

Closes #439

Changes#

• Added @nestjs/bullmq, bullmq, and ioredis as runtime dependencies
• Added REDIS_HOST (default: localhost) and REDIS_PORT (default: 6379) to Joi config schema
• Registered BullModule.forRootAsync() in AppModule with ConfigService-driven connection
• Registered phase-invoke and phase-result queues via BullModule.registerQueue()
• Added a dedicated ioredis client provider in HealthModule for health probes
• Updated HealthService.getHealth() to return redis: "connected" | "disconnected" via async ping()
• Added health.service.spec.ts covering connected and disconnected Redis states

Notes#

• Redis health check uses a separate ioredis instance (with lazyConnect: true) to avoid coupling probes to BullMQ's internal connection lifecycle.
• BullMQ will fail fast at startup if Redis is unavailable — no silent swallowing.

Testing#

• Unit tests: npm run test — 802 tests pass, no regressions
• Build: npm run build — zero errors
• Lint: npm run lint — zero warnings