5.3.0

API

API v5.3.0 — Case & JWT.

• Added endpoint GET /case: converts text between 9 case formats using universal tokenization that handles camelCase splitting, _, -, ., and spaces. Supported targets: camel, pascal, snake, kebab, constant, title, sentence, upper, and lower. Returns the original text, the target format, and the converted result.
• Added endpoint POST /jwt: decodes a JSON Web Token without verifying the signature. Returns the decoded header and payload as objects, the raw signature string, and an expired boolean derived from the exp claim when present.

Documentation

• Added documentation pages for Case and JWT: covers parameters, available targets/formats, response fields, code examples, and error handling.
• Added both endpoints to the sidebar and Playground registry.
• Removed v4 changelog files duplicated under src/v5/ — they already exist in src/v4/.
• Fixed curl snippet JSON indentation in Playground code examples.