docs: generate changelog and update beta banner to v1

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: matthew-on-git

CHANGELOG.md

@@ -7,9 +7,19 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Changed
+
+- Updated beta banner to v1 stable
+
+## [1.0.0] - 2026-03-01
+
 ### Added
 
-- Initial Hugo site scaffold with Docsy theme
-- Landing page with project tagline and value propositions
-- Content directory structure for documentation sections
-- DevRail standards dogfooding (Makefile, .devrail.yml, agent files)
+- Hugo site with Docsy theme deployed to Cloudflare Pages
+- Standards documentation for all 7 language ecosystems (Python, Bash, Terraform, Ansible, Ruby, Go, JavaScript/TypeScript)
+- Getting started guides (new project, retrofit, AI agents)
+- DevRail compliance badge SVG and badge documentation page
+- Contributing guide with language ecosystem addition walkthrough
+- Dark terminal/hacker theme
+- OpenClaw system prompt page
+- Agent quickstart guide and homepage prompt block

README.md

@@ -1,6 +1,6 @@
 # devrail.dev
 
-> **Beta** -- DevRail is under active development. Standards, tooling, and site content may change without notice. See [STABILITY.md](STABILITY.md) for details.
+> DevRail `v1` is stable. See [STABILITY.md](STABILITY.md) for component status.
 
 The documentation site for [DevRail](https://devrail.dev) -- opinionated development standards for teams that ship with AI agents.