Refactor ServeHTTP to properly handle response body mutations by:
- Using ResponseModifier to capture response before modification
- Reading body content and allowing middleware to modify it
- Writing modified body back if changed during modification
- Ensuring proper order: RequestModifier before, ResponseModifier after next()
Previously, httputils.NewModifyResponseWriter did not correctly handle
body mutations. The new implementation captures the full response,
allows modification via modifyResponse, and properly writes back any
changes to the body.
Add BodyReader() and SetBody() methods to ResponseModifier to support
reading and replacing response body content.
- Remove BytesPoolWithMemory; split into UnsizedBytesPool and 11-tier SizedBytesPool
- Track buffer capacities with xsync Map to prevent capacity leaks
- Improve buffer reuse: split large buffers and put remainders back in pool
- Optimize small buffers to use unsized pool
- Expand test coverage and benchmarks for various allocation sizes
* Add comprehensive post-request rules support for response phase
* Enable response body, status, and header manipulation via set commands
* Refactor command handlers to support both request and response phases
* Implement response modifier system for post-request template execution
* Support response-based rule matching with status and header checks
* Add comprehensive benchmarks for matcher performance
* Refactor authentication and proxying commands for unified error handling
* Support negated conditions with !
* Enhance error handling, error formatting and validation
* Routes: add `rule_file` field with rule preset support
* Environment variable substitution: now supports variables without `GODOXY_` prefix
* new conditions:
* `on resp_header <key> [<value>]`
* `on status <status>`
* new commands:
* `require_auth`
* `set resp_header <key> <template>`
* `set resp_body <template>`
* `set status <code>`
* `log <level> <path> <template>`
* `notify <level> <provider> <title_template> <body_template>`
