feat(python): add nemo-relay-plugin worker SDK package

[willkill07]

Overview

Add the pure-Python nemo-relay-plugin worker SDK package and its packaging/test support.

Stack dependency: this PR cannot be merged until parent stacked PR #309 is merged: #309

• I confirm this contribution is my own work, or I have the right to submit it under this project's license.
• I searched existing issues and open pull requests, and this does not duplicate existing work.

Details

• Add python/plugin with high-level worker plugin APIs, generated gRPC stubs, runtime helpers, continuations, and streaming helpers.
• Add Python SDK tests and a Python gRPC worker example.
• Update Python test, coverage, packaging, CI wheel upload, attribution, and pre-commit configuration for the new package.

Validation run across the completed stack:

• cargo test -p nemo-relay-types
• cargo test -p nemo-relay-plugin
• cargo test -p nemo-relay-worker-proto
• cargo test -p nemo-relay-worker
• cargo check -p nemo-relay-cli

Where should the reviewer start?

Start with python/plugin/src/nemo_relay_plugin/_api.py, then review python/tests/plugin/test_worker_sdk.py.

Related Issues: (use one of the action keywords Closes / Fixes / Resolves / Relates to)

• Relates to: feat: implement dynamic plugin host policy and attestation gates #302
• Relates to: feat: add explicit plugin config file override #230

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[github-actions]

Fern docs preview: https://nvidia-preview-pull-request-310.docs.buildwithfern.com/nemo/relay (​https://nvidia-preview-pull-request-310.docs.buildwithfern.com/nemo/relay​)

[github-actions]

Fern docs preview: https://nvidia-preview-pull-request-310.docs.buildwithfern.com/nemo/relay (​https://nvidia-preview-pull-request-310.docs.buildwithfern.com/nemo/relay​)

[github-actions]

Fern docs preview: https://nvidia-preview-pull-request-310.docs.buildwithfern.com/nemo/relay (​https://nvidia-preview-pull-request-310.docs.buildwithfern.com/nemo/relay​)

[github-actions]

Fern docs preview: https://nvidia-preview-pull-request-310.docs.buildwithfern.com/nemo/relay (​https://nvidia-preview-pull-request-310.docs.buildwithfern.com/nemo/relay​)

[github-actions]

Fern docs preview: https://nvidia-preview-pull-request-310.docs.buildwithfern.com/nemo/relay (​https://nvidia-preview-pull-request-310.docs.buildwithfern.com/nemo/relay​)

[github-actions]

License Diff

Compared against origin/main.

Lockfile license changes

Lockfile License Changes

Rust

Added

• fixedbitset 0.5.7 (Apache-2.0)
• multimap 0.10.1 (Apache-2.0)
• petgraph 0.8.3 (Apache-2.0)
• prost-build 0.14.3 (Apache-2.0)
• prost-types 0.14.3 (Apache-2.0)
• protoc-bin-vendored 3.2.0 (MIT)
• protoc-bin-vendored-linux-aarch_64 3.2.0 (MIT)
• protoc-bin-vendored-linux-ppcle_64 3.2.0 (MIT)
• protoc-bin-vendored-linux-s390_64 3.2.0 (MIT)
• protoc-bin-vendored-linux-x86_32 3.2.0 (MIT)
• protoc-bin-vendored-linux-x86_64 3.2.0 (MIT)
• protoc-bin-vendored-macos-aarch_64 3.2.0 (MIT)
• protoc-bin-vendored-macos-x86_64 3.2.0 (MIT)
• protoc-bin-vendored-win32 3.2.0 (MIT)
• pulldown-cmark 0.13.4 (MIT)
• pulldown-cmark-to-cmark 22.0.0 (Apache-2.0)
• tonic-build 0.14.6 (MIT)
• tonic-prost-build 0.14.6 (MIT)
• unicase 2.9.0 (Apache-2.0)

Removed

• None

Updated/Changed

hashbrown

Before:

• hashbrown 0.15.5 (MIT OR Apache-2.0)
• hashbrown 0.17.0 (Apache-2.0)

After:

• hashbrown 0.15.5 (Apache-2.0)
• hashbrown 0.17.0 (Apache-2.0)

prettyplease

Before:

• prettyplease 0.2.37 (MIT OR Apache-2.0)

After:

• prettyplease 0.2.37 (Apache-2.0)

sha2

Before:

• sha2 0.11.0 (Apache-2.0)

After:

• sha2 0.10.9 (Apache-2.0)
• sha2 0.11.0 (Apache-2.0)

Node

Added

• None

Removed

• None

Updated/Changed

• None

Python

Added

• grpcio 1.81.1 (Apache-2.0)

Removed

• None

Updated/Changed

• None

Status output

[license-diff] selected languages: rust, node, python
[license-diff] generating current inventory
[license-diff] current: generating Rust inventory
[license-diff] current: Rust inventory complete (364 packages)
[license-diff] current: generating Node inventory
[license-diff] current: Node inventory complete (364 packages)
[license-diff] current: generating Python inventory
[license-diff] current: Python inventory complete (105 packages)
[license-diff] current inventory complete
[license-diff] checking out base ref origin/main into a temporary worktree
[license-diff] base: generating Rust inventory
[license-diff] base: Rust inventory complete (344 packages)
[license-diff] base: generating Node inventory
[license-diff] base: Node inventory complete (364 packages)
[license-diff] base: generating Python inventory
[license-diff] base: Python inventory complete (104 packages)
[license-diff] base inventory complete
[license-diff] removing temporary base worktree
[license-diff] comparing inventories
[license-diff] rendering Markdown output
[license-diff] done