Split parser and service install extras

[JSv4]

Summary

• Move FastAPI, uvicorn, and multipart dependencies out of the base package install and into an explicit service extra.
• Add documented install profiles: parser, service, ocr, and all; keep the benchmark-only tables extra separate.
• Add a clear service-runtime install hint when service entrypoints are used without warp-ingest[service] or warp-ingest[all].
• Update README, Docker builds, requirements export, uv.lock, and add metadata tests guarding the dependency boundary.

Impact

Parser consumers can install warp-ingest or warp-ingest[parser] without microservice runtime dependencies. Service deployments can use warp-ingest[service] or warp-ingest[all] for the OCR-enabled service image/profile.

Because the package was just released today, this intentionally treats the bare-install behavior change as a packaging correction before broader adoption.

Validation

• env UV_CACHE_DIR=/tmp/uv-cache uv run pytest tests/test_package_metadata.py tests/test_service.py -q
• env UV_CACHE_DIR=/tmp/uv-cache uv run black --check warp_ingest/ingestion_daemon/service_dependencies.py warp_ingest/ingestion_daemon/__main__.py warp_ingest/ingestion_daemon/app.py warp_ingest/ingestion_daemon/auth.py tests/test_package_metadata.py
• env UV_CACHE_DIR=/tmp/uv-cache uv run isort --check-only warp_ingest/ingestion_daemon/service_dependencies.py warp_ingest/ingestion_daemon/__main__.py warp_ingest/ingestion_daemon/app.py warp_ingest/ingestion_daemon/auth.py tests/test_package_metadata.py
• env UV_CACHE_DIR=/tmp/uv-cache uv build --wheel --out-dir /tmp/warp-ingest-dist