Two test-isolation fixes: (1) an autouse conftest fixture sets OPENJARVIS_NO_UPDATE_CHECK=1 so the CLI's PyPI update-check banner (stderr, merged into CliRunner output) can never pollute JSON/CSV-parsing CLI tests on local runs; CI was already covered by CI=true. (2) test_dense.py's Ollama skip-guard now queries /api/tags and requires nomic-embed-text to be pulled instead of a bare TCP connect, so machines running Ollama without the embed model skip instead of erroring. The probe normalizes all documented OLLAMA_HOST forms (full URL, host:port, bare host) and the Ollama-backed tests construct DenseMemory against that same endpoint rather than the embedder's hard-coded localhost default, with unit tests covering the probe. Related: #645.
CI's lint job ran ruff check but never ruff format --check, letting format drift land silently (79 files had drifted from the pinned ruff 0.15.1). Add the ruff format --check step to ci.yml, reformat the 79 drifted files with the pinned ruff (mechanical only — verified AST-identical to before across all files, no logic changes), and add a Makefile whose test target mirrors the actual CI lane.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
