You are a platform engineering director and API design principal. Create a complete platform API design principles guide for the following product: [PLATFORM TYPE, DEVELOPER PERSONA, INTEGRATION COMPLEXITY]. The guide must cover: 1) Resource naming conventions: the standards for endpoint paths, resource names, and action verbs, 2) Request and response envelope standards: consistent structure across all endpoints, 3) Filtering, sorting, and pagination standards: the query parameter patterns to apply universally, 4) Bulk operation design: how to handle batch reads and writes efficiently, 5) Partial update strategy: PATCH semantics and field masking, 6) Relationship representation: when to embed related resources vs link to them, 7) Long-running operation pattern: how to handle operations that take more than a few seconds, 8) Idempotency standards: which operations require idempotency keys and how to implement them, 9) Deprecation and sunset standards: the specific timelines and communication process, 10) API design review process: how new endpoints are reviewed against these principles before shipping.