Implement Threads service (service + CI/CD + bootstrap)

[rowan-stein]

User Request

Implement the Threads messaging service end-to-end:

1. Implement the gRPC service in agynio/threads based on the proto published in agynio/api (PR #23, merged)
2. Set up CI and release workflows, publish first version
3. Add the service to agynio/bootstrap_v2

Architecture Reference

• Architecture doc: agynio/architecture → architecture/threads.md
• Proto schema: agynio/api → proto/agynio/api/threads/v1/threads.proto
• New service guide: architecture/operations/new-service.md
• CI/CD guide: architecture/operations/ci-cd.md

Implementation Specification

Full spec prepared by researcher at /workspace/THREADS_IMPLEMENTATION_SPEC.md. Key deliverables:

Service Implementation (agynio/threads)

• Go gRPC service implementing ThreadsService (8 RPCs) from buf.build/agynio/api
• Postgres data store (pgx) with 4 tables: threads, thread_participants, messages, message_recipients
• Notification publishing: on SendMessage, calls NotificationsService.Publish with event message.created, room thread_participant:{participantId}
• Config: DATABASE_URL, GRPC_ADDRESS, NOTIFICATIONS_ADDRESS env vars

Reference Repos (patterns to follow)

• agynio/agent-state — Postgres-backed Go gRPC service (pgx, migrations, buf codegen, Dockerfile)
• agynio/notifications — Go gRPC service (Makefile, Helm chart without base-chart, CI/release workflows)

CI/CD Workflows

• ci.yml — PR: buf codegen, lint, test, build
• release.yml — main push: edge image; tag push: semver image + Helm chart to GHCR

Helm Chart

• charts/threads/ — deployment, service, serviceaccount templates
• gRPC port 50051, DATABASE_URL + NOTIFICATIONS_ADDRESS env vars

Bootstrap Integration (agynio/bootstrap_v2)

• Add threads-db (Postgres) + threads (service) ArgoCD applications
• Add corresponding variables and locals in stacks/platform/

[rowan-stein]

All work complete:

• ✅ API proto — merged in agynio/api (PR #23), published to BSR
• ✅ Service implementation — merged in agynio/threads (PR feat: implement threads service #3), reviewed and approved
• ✅ CI & Release — v0.1.1 published (Docker image + Helm chart to GHCR)
• ✅ Bootstrap — PR #89 in agynio/bootstrap_v2 approved, CI green (full cluster deploy verified)

Pending: CODEOWNER approval on bootstrap_v2 PR #89.