Blog API

Build a Fastify API for a blogging platform. The API manages blog posts and comments.

A blog post has: id (string), title (string, 1-200 chars), content (string), authorId (string), tags (array of strings), published (boolean), and createdAt/updatedAt (ISO date strings).

A comment has: id (string), postId (string), authorName (string), content (string, 1-1000 chars), and createdAt.

Endpoints

• POST /api/posts -- Create a blog post.
• GET /api/posts -- List posts. Accepts optional query params: published (boolean), tag (string), page (integer), limit (integer, max 50).
• GET /api/posts/:id -- Get a single post with its comments.
• PUT /api/posts/:id -- Update a post.
• DELETE /api/posts/:id -- Delete a post and its comments.
• POST /api/posts/:postId/comments -- Add a comment to a post.
• GET /api/posts/:postId/comments -- List comments for a post.

Use in-memory arrays for storage.

Output

Produce TypeScript files in a src/ directory:

• src/app.ts -- Fastify app setup with TypeScript type provider
• src/plugins/posts.ts -- Post routes
• src/plugins/comments.ts -- Comment routes
• src/services/postService.ts -- Post business logic
• src/services/commentService.ts -- Comment business logic
• src/schemas/post.ts -- Shared post schemas
• src/schemas/comment.ts -- Shared comment schemas
• src/server.ts -- Server startup

Do not include test files or build configuration.