Reorganize CLAUDE.md: move completed versions to Session History

- Remove completed version 0.0.1 from Temporary Roadmap
- Add Session History section at end of file for AI session documentation
- Document v0.0.1 implementation details and architecture decisions

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CLAUDE.md

@@ -34,7 +34,7 @@ This project is proudly **"vibe-coded"** using Claude.AI - the entire codebase w
 
 ## Temporary Roadmap
 
-**Note for AI Assistants:** Clean this section after the specific features are done or new releases are made. Effective changes are tracked in `CHANGELOG.md`
+**Note for AI Assistants:** Clean this section after the specific features are done or new releases are made. Effective changes are tracked in `CHANGELOG.md`. Do not add completed versions here - document them in the Session History section at the end of this file.
 
 ### Version 0.0.2 (Next)
 
@@ -43,17 +43,6 @@ This project is proudly **"vibe-coded"** using Claude.AI - the entire codebase w
 - Add email notification with license key after order completion
 - Consider rate limiting for REST API endpoints
 
-### Version 0.0.1 (Completed)
-
-- ✅ Created basic WordPress/WooCommerce plugin structure
-- ✅ Implemented domain-bound license management via REST API
-- ✅ Added "Licensed Product" WooCommerce product type
-- ✅ License generation on order completion (XXXX-XXXX-XXXX-XXXX format)
-- ✅ Customer account page for viewing licenses
-- ✅ Admin CRUD interface for license management
-- ✅ Checkout domain field for licensed products
-- ✅ German (de_CH) translation
-
 ## Technical Stack
 
 - **Language:** PHP 8.3.x
@@ -252,3 +241,29 @@ Base: `/wp-json/wc-licensed-product/v1/`
 - `License` - Entity model with status constants
 - `LicensedProduct` - Extends WC_Product for licensed products
 - `LicensedProductType` - Registers product type with WooCommerce
+
+---
+
+## Session History
+
+### 2026-01-21 - Initial Implementation (v0.0.1)
+
+**Implemented:**
+
+- Created basic WordPress/WooCommerce plugin structure
+- Implemented domain-bound license management via REST API
+- Added "Licensed Product" WooCommerce product type
+- License generation on order completion (XXXX-XXXX-XXXX-XXXX format)
+- Customer account page for viewing licenses
+- Admin CRUD interface for license management
+- Checkout domain field for licensed products
+- German (de_CH) translation
+
+**Architecture decisions:**
+
+- Used Twig 3.0 for templating with fallback PHP templates
+- License keys use format XXXX-XXXX-XXXX-XXXX (alphanumeric)
+- Licenses bound to normalized domains (no protocol, no www, lowercase)
+- REST API at `/wp-json/wc-licensed-product/v1/`
+- Custom database tables for licenses and product versions
+- WooCommerce HPOS compatibility included