v0.8.0 — replace moondream with gemma3:4b, add ollama tests New: - ollama test suite (4 tests: model registration, chat, embedding, vision) - tests/.fixtures/cow.jpg for vision verification - gemma3:4b as vision+chat model (replaces broken moondream) Changed: - ollama provider: moondream → gemma3:4b (general chat + vision) - test_litellm.sh: conditionally checks ollama models when OLLAMA=1 Removed: - moondream from pull list (broken, unmaintained GGUF) - llama-swap config remnants from .env