docs(vm302): split test env into dedicated dir, mark SE 21c as TODO

Move VM302-TESTING.md from lxc108-oracle/roa-windows-setup/test/ into a
new proxmox/vm302-oracle-test/ directory (sibling of vm109/vm201) so the
test environment is documented separately from the setup scripts. Add a
dual-edition test plan (XE validated / SE TODO) and a stub for capturing
the production SE errors next time they reproduce.

Cross-link from roa-windows-setup/README.md, proxmox/README.md master
index and CLAUDE.md entry points. Setup scripts stay in lxc108-oracle —
they are not VM-specific.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

CLAUDE.md

@@ -21,7 +21,8 @@ proxmox/                    # Main infrastructure documentation
 ├── lxc110-moltbot/         # MoltBot AI Telegram Bot
 ├── lxc171-claude-agent/    # Claude Code development environment
 ├── vm109-windows-dr/       # Windows Disaster Recovery VM
-└── vm201-windows/          # Windows 11 (IIS reverse proxy)
+├── vm201-windows/          # Windows 11 (IIS reverse proxy)
+└── vm302-oracle-test/      # Windows 11 + Oracle 21c test VM (ROA setup validation)
 
 system_instructions/        # SQL migration guidelines and knowledge base
 ├── system_prompt.md        # SQL migration rules - READ BEFORE WRITING SQL
@@ -42,6 +43,8 @@ input/                      # Oracle DMP files for import
 - **Migration orchestration**: `proxmox/lxc108-oracle/migration/00-MASTER-MIGRATION.sh`
 - **Chatbot architecture**: `proxmox/lxc104-flowise/docs/prd.md`
 - **Disaster recovery**: `proxmox/vm109-windows-dr/README.md`
+- **ROA Windows setup scripts (XE/SE 21c)**: `proxmox/lxc108-oracle/roa-windows-setup/README.md`
+- **VM 302 test environment for ROA setup**: `proxmox/vm302-oracle-test/README.md`
 
 ## Infrastructure Commands