chore: add project changelog

CHANGELOG.md

@@ -0,0 +1,20 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+### Added
+- Initial release with 4-tier execution engine
+- Persistent browser pool with real Google Chrome
+- Session caching via Redis
+- FlareSolverr v2-compatible `/v1` endpoint
+- WebSocket live scrape streaming at `/scrape/live`
+- Self-healing browser pool with automatic restart on crash
+- Sticky domain routing to maximize session cache hits
+- Nuxt 4 landing page with live stats
+- VitePress documentation site
+- Docker Compose deployment with amd64 platform targeting for Chrome compatibility