Feat/railway config files

[LeonardoVieira1630]

Summary

Wires up Railway-managed health checks across the notification system services so deploys are gated on liveness rather than just process start. Adds /health endpoints to the dispatcher and logic-system (which had no prior HTTP surface) and to the consumers webhook server, and updates each service's railway.toml to probe them.

Changes

• Add /health endpoint to consumers webhook server with a Zod-typed response schema (apps/consumers/src/services/webhook/webhook-server.ts).
• Introduce minimal Fastify health servers for dispatcher and logic-system (apps/dispatcher/src/server.ts, apps/logic-system/src/server.ts), wired into each app's start/stop lifecycle.
• Add PORT env var (defaults: dispatcher 3004, logic-system 3005) via Zod env schemas and thread it through App constructors and index.ts entrypoints.
• Add fastify and fastify-type-provider-zod dependencies to dispatcher and logic-system (package.json, pnpm-lock.yaml).
• Configure Railway health checks (healthcheckPath = "/health", healthcheckTimeout = 30, restartPolicyMaxRetries = 3) for consumers, dispatcher, logic-system, and subscription-server.
• EXPOSE service ports in consumers, dispatcher, and logic-system Dockerfiles.
• Map and set PORT for dispatcher and logic-system in docker-compose.yml so local runs match the Railway setup.

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Project	Deployment	Actions	Updated (UTC)
flow-editor	Ready	Preview, Comment	Apr 30, 2026 4:59pm
notification-system-dashboard	Ready	Preview, Comment	Apr 30, 2026 4:59pm