Adds graphify/mcp_ingest.py — extracts MCP server configurations into the
knowledge graph. Captures server nodes, NuGet/npm/pip package refs, commands,
env var requirements, and inter-server edges. Dispatched by filename before
the suffix lookup so generic .json extraction is unaffected. Env values are
discarded to prevent secret leakage. File size capped at 1 MiB. 29 tests.
Fixes: server_count budget now checked after validity guard so invalid entries
don't consume capacity; removed misleading uv run docstring example.
Co-Authored-By: adityachaudhary99 <adityachaudhary99@users.noreply.github.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>