The RAG plugin probes a local embedding backend (Ollama on localhost:11434
by default) at init with no timeout. When Ollama isn't running, opencode
hangs after loading plugins and never starts. Dropped it from the template
and documented re-enable steps + the --pure diagnostic in the README.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>