~anthropic/claude-sonnet-latest → B (6:4)

B removes dead demo-counter code and introduces a real architectural improvement (async settlement worker with batching, cached ranking scores, warm-cache on startup) that affects core server behavior and performance, backed by updated tests. A fixes genuine bugs in test-only mock OAuth/HTTP helpers (regex split, getRequestBody vs getInputStream, nil-safe state encoding, exception handling) which is valuable for reliable E2E testing but scoped only to test infrastructure, not production code.