Release v0.1.3

Full Changelog: v0.1.2...v0.1.3

Features

• Go 1.22+ native routing via http.ServeMux
• Dual path parameter syntax — both :param and {param} styles are supported interchangeably
• Named routes & path constraints — typed URL params (kern.UintPathConstraint) and route lookup by name
• Built-in auth — BearerAuth and BasicAuth middleware ship in core
• Route-specific middleware — apply guards per route with AddConstraints(), no group nesting needed
• Structured request binding — Bind() / BindQuery() / BindForm() / BindHeader() with struct tags
• File handling — multipart upload (SaveFile), download (DownloadFile), streaming with range support (StreamFile)
• Conditional requests — built-in ETag, LastModified, If-None-Match / If-Modified-Since evaluation
• Built-in test client — kern.NewTestClient(app) for handler tests without a real HTTP server
• Context pooling for lower allocation pressure
• Middleware chaining with standard func(http.Handler) http.Handler
• Route groups for shared prefixes and middleware
• Graceful shutdown options for production servers
• Zero core dependencies