[shuence]

Summary

Add a complete Go SDK client for the PageKit content API.

Features

• Full API coverage: Posts (CRUD + slug lookup), Authors, Categories, Tags, Media
• Retry with exponential backoff for 429 and 5xx errors (max 3 retries)
• User-Agent header (pagekit-go/0.1.0)
• X-Request-Id capture from server responses
• Retry-After header support for rate limits
• Zero external dependencies (stdlib only)
• 30 tests passing with httptest mock server

Package structure

pagekit-go/
├── go.mod
├── pagekit.go      # Client with retry, User-Agent, request ID
├── types.go        # All API types matching TS SDK
├── errors.go       # PagekitError with IsRetryable/RateLimit
├── posts.go        # PostsService
├── authors.go      # AuthorsService
├── categories.go   # CategoriesService
├── tags.go         # TagsService
├── media.go        # MediaService
├── README.md       # Full docs with examples
├── LICENSE         # MIT
└── *_test.go       # 30 tests

Usage

client, _ := pagekit.NewClient("pk_live_...")
posts, _ := client.Posts.List(ctx, pagekit.PostListParams{
    Status: pagekit.Ptr(pagekit.PostStatusPublished),
})

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