Proxy batch handlers now use BatchEngine for job lifecycle, file storage,
and webhook delivery instead of direct SQLite calls. Old batch/db.rs
stripped to Anthropic-specific mapping only. Cancel endpoint at
POST /v1/batches/{id}/cancel. BatchEngine initialized in main.rs startup
with second SQLite connection. Cancel integration test added.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
partition_tool_calls now returns three buckets (auto_execute, pass_through,
denied). Denied tools generate ToolResult entries with is_error:true and a
"denied by policy" message, which are fed back to the LLM in a follow-up
turn so it can see the rejection. Updated all callers (maybe_execute_tools,
streaming handler in chat_completions.rs) and added unit + integration tests.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>