PromptOps v0.1.0 — first public preview

Runtime platform for AI prompts, agents and workflows.
Core MVP: prompt CRUD/versioning/publish/rollback, SDKs for Node/Python/Java
with WebSocket hot-reload, Playground with mock + OpenAI/Claude/Ollama/Gemini
providers, Agent and Workflow runtimes, audit + run logs + aggregated metrics,
RBAC, gray release, workspaces, English/Chinese i18n, Docker Compose deploy.

This tag adds the open-source baseline (LICENSE Apache-2.0, SECURITY.md,
CONTRIBUTING.md, GitHub templates, runnable examples, README security
notice) needed for external adoption.

See CHANGELOG.md for the full list.