ClipBrain v0.2.2 — setup always creates a working brain

Fixed a silent setup failure: ./setup.sh could finish with "✅ ready" without actually creating your brain (if no embedding provider was set).

Setup now always creates a working brain — OpenAI embeddings if you have a key, local Ollama if it's running, otherwise a keyword-only brain — verifies it exists, and tells you whether semantic search is on. Captures and search work out of the box now, even without an API key.

Upgrade: git pull && ./setup.sh (safe to re-run).