[rmkr-dev]

Adds a Skillbook entry and a matching Promptbook entry for Azure Service Bus consumer reliability in Spring Boot.

Skill: azure-service-bus-consumer-reliability-guardrails

• PeekLock for work with side effects; complete only after the side effect commits; abandon recoverable failures; dead-letter poison messages with a reason and description
• MaxDeliveryCount and an owned system dead-letter sub-queue; read DeadLetterReason before replay, and resend under a new MessageId when duplicate detection is on
• Lock duration versus max auto lock renewal; stop without settling on MessageLockLost
• Prefetch and max concurrent calls sized to processing capacity and the connection pool; sessions for per-key order, competing consumers otherwise
• Idempotent handlers (inbox, upsert, or natural key) under at-least-once redelivery. This skill owns consuming, settlement, the DLQ, and locks. Publishing stays with the outbox skill
• Graceful shutdown inside the pod grace period, alerts on DLQ growth and stuck active messages, failure-path tests, checklist, anti-patterns, and a SKILL.md stub

Prompt: harden-azure-service-bus-consumer

• Inventory first, then PeekLock and settlement, idempotency, retry and DLQ, sizing, shutdown, metrics, and tests
• Minimal diff with duplicate-delivery, dead-letter, and lock-lost tests before tuning prefetch

Catalogs go to 52 skills / 52 prompts. node scripts/site-check.mjs passes locally.

Replaces #88 after renaming the head branch to drop the tool-branded name (same commits, no rewrite).